IMAC

XVII

Proceedingsof the

17th InternationalModal Analysis

ConferenceFEBRUARY 8-11,1999

HYATT ORLANDO HOTELKISSIMMEE, FLORIDA

TECHNICAL PROGRAM CHAIR:Alfred L. Wicks, Virginia Polytechnic Institute and State UniversityDominick J. DeMichele, Honorary Technical Chair

SOCIETY FOR EXPERIMENTAL MECHANICS, INC.:Kristin L. MacDonald, Executive DirectorKatherine M. Ramsay, Conference Manager

UB/TIB Hannover sq119 066 726

Organized By:

SOCIETY FOR EXPERIMENTAL MECHANICS, INC.Bethel, Connecticut 06801

TABLE OF CONTENTS

Page No.

1. Vibration Characteristics and Performance of Building Floors

Developed by: A. Pavic, University of Sheffield

Floor Vibrations: The Human Tolerance Side of the Equation, #352 1T.M. Murray, Virginia Polytechnic Institute and State University

Dynamic FE Modeling of a Multi-story Car Park Verified by Modal Testing, #354 7P. Reynolds, A. Pavic, P. Waldron, University of Sheffield

Modal Testing of a Post-tensioned Concrete Model Floor Slab, #355 14M.S. Williams, S. Falati, University of Oxford

The Dynamic Behavior of an Armored Vehicle Launched Bridge, #183 21S.H. Petro, S.E. Chen, S. Venkatappa, H. GangaRao, West Virginia University;A. Culkin, U.S. Army Tank-Automotive R&D & Engineering Center

2 Modal Based Structural Monitoring Using In-operation System Identification I

Developed by: E. Balmes, Ecole Centrale Paris and H. Van der Auweraer, LMS International

Applications of Structural Model Identification During Normal Operating Conditions:An Overview of the EUREKA Project SINOPSYS, #366 27

H. Van der Auweraer, L. Hermans, LMS International

On The Application of a Subspace-based Fault Detection Method, #368 35L. Mevel, M. Basseville, A. Benveniste, M. Goursat, M. Abdelghani, IRISA-INRIA;L. Hermans, LMS International

Health Monitoring and Detection of a Fatigue Problem of a Sports Car, #369 42L. Hermans, H. Van der Auweraer, LMS International; L. Mevel, IRISA-INRIA

Modal Parameter Extraction Using Natural Excitation Response Data, #133 49P. Barney, T. Came, Sandia National Laboratories

3. Aircraft/Aerospace

A Combined Testing Approach for Aerospace Hardware, #102 56J.W. Sills Jr., Lockheed Martin Technical Operations; C.R. Voorhees, Lockheed MartinMissiles and Space CPC

Free Vibration of Doubly Curved Composite Honeycomb Rectangular Sandwich Panels, #14 65P.R. Cunningham, R.G. White, University of Southampton

Aircraft Vibration Alleviation with Active Control, #232 72W.G. Luber, J. Becker, Daimler-Benz Aerospace AG

In-flight Modal Testing and Analysis of a Helicopter, #129 80L. Hermans, H. Van der Auweraer, LMS International; A. Hatami,J.E. Cooper, University of Manchester; T. Uhl, W. Lisowski, University of Mining andMetallurgy; A. Wasilak, PZL Swidnik SA

Non-linear Modal Analysis Applied to an Industrial Structure, #412 87C. Gibert, F. Thouverez, L. Jezequel, Ecole Centrale de Lyon

4. Analytical Methods I

The Development of Machine-tool Force Reconstruction and Wear Detection, #216 94W.J. Braun, M.H. Miller, J.F. Schultze, Michigan Technological University

Continuous Wavelet Transform Analysis of Acoustic Emission Signals, #265 99A. Munoz-Najar, J. Hashemi, Texas Tech University

Modeling Dynamic Response of Stressed Structures, #92 103P.D. Greening, N.A.J. Lieven, University of Bristol

Seismic Response of Soil - Structure Systems in the Valley of Mexico, #42 109M.J. Ramfrez, Instituto Mexicano del Petroleo

5. Experimental Techniques I

Monitoring Deaerator Stresses During a Transient in a Thermoelectric Power Plant, #72 115N.S. Maia, Centra Federal de Educacao Tecnologica de Minas Gerais;T.R. Mansur, Comissao Nacinoal de Energia Nuclear (CNEN); E.B. Medeiros,Universidade Federal de Minas Gerais

Comparison of Some Moment Mobility Measuring Methods, #117 120L. Ivarsson, M.A. Sanderson, Chalmers University of Technology

Effect of Holding on The Normal Modes of an Instrumented Violin Bow, #24 126G. Bissinger, K. Ye, East Carolina University

Modeling of Dynamic Behavior Resulting from Residual Stresses, #94 131N.A.J. Lieven, P.D. Greening, University of Bristol

Transducer Inertia and Stinger Stiffness Effects on FRF Measurements, #19 137K.G. McConnell, Iowa State University of Science and Technology;P. Cappa, Universita Degli Studi di Roma "La Sapienza"

6. Structural Response Control of Civil Structures I

Developed by: A.K. Agrawal, The City College of the City University of New York

Effects of Damping Mechanisms on the Seismic Response of Isolated Structures, #357 146S.P. Chang, N. Makris, University of California, Berkeley

Identification of Structures Using General Input Data, #358 153H. Lus, R. Betti, R.W. Longman, Columbia University

System Identification of Base Isolated USC Hospital Building From Recorded Response, #359 159S. Nagarajaiah, University of Missouri - Columbia

Vibration Testing of a Long Span Bridge: Objectives and Challenges, #245 166F.N. Catbas, A.E. Aktan, K.A. Grimmelsman, R.A. Barrish, C.J. Tsikos, Drexel IntelligentInfrastructure & Transportation Safety Institute

Wind Tunnel Comparison of Active and Passive Tuned Mass Dampers, #360 174B. Samali, University of Technology Sydney; K.C.S. Kwok, University of Sydney;R.J. Focioni, HYDER Consultants

7. Damping

Finite Element Models with Viscoelastic Damping, #209 181M.I. Friswell, University of Wales Swansea; D.J. Inman, Virginia Polytechnic Instituteand State University

Optimization of Dynamic Vibration Absorbers Over a Frequency Band, #108 188D.A. Rade, V. Steffen, Jr., Federal University of Uberlandia

A Test Validated Model of Plates with Constrained Viscoelastic Materials, #96 194A.S. Plouin, E. Balmes, Ecole Centrale Paris

The Effect of the Clamping Force on the Dynamic Behavior of a Stator Core, #165 201M. Dias Jr., State University of Campinas

Theoretical Analysis of Ring Damped Railway Wheels, #66 208I. Lopez, J.M. Busturia, J. Vinolas, Centra de Estudios e InvestigacionesTecnicas de Gipuzkoa

Experimental, Theoretical, and Numerical Modal Analysis of a DampedPortable-grinder Disk, #263 215

A. Farina, R. Garziera, S. Rainieri, University of Parma

8. Model Based Structural Monitoring Using In-operation System Identification II

Developed by: E. Balmes, Ecole Centrale Paris and H. Van der Auweraer, LMS International

Performance of Output-only Identification Algorithms for Modal Analysis ofAircraft Structures, #371 224

M. Abdelghani, IRISA-INRIA; M. Goursat, INRIA; T. Biolchini, Sopemea;L. Hermans, H. Van der Auweraer, LMS International

Stochastic System Identification: Uncertainty of the Estimated Modal Parameters, #116 231B. Peeters, G. De Roeck, Katholieke Universiteit Leuven; P. Andersen, Aalborg University

On-line Damage Assessment Using Operating Deflection Shapes, #135 238R. Pascual, J.C. Golinval, M. Razeto, University of Liege

Transfer Function Optimization Based on Subspace Identification Methods, #372 244S. De Schepper, P. Van Overschee, B. De Moor, Katholieke Universiteit Leuven

Assessment of Subspace Fault Detection Algorithms on a RealisticSimulator-based Example, #370 249

M. Abdelghani, IRISA-INRIA; M. Basseville, IRISA/CNRS; A. Benveniste,L. Mevel, IRISA/INRIA; E. Balmes, Ecole Centrale Paris; L. Hermans, H. Van der Auweraer,LMS International

9. Rotating Machinery I

Developed by: G. Kirk, Virginia Polytechnic Institute and State University

Utilizing Dynamic Support Stiffness for Improved Rotordynamic Calculations, #314 256J.C. Nicholas, Rotating Machinery Technology, Inc.

Modal Testing of Rotating Machinery while it is Operating, #315 263W.D. Marscher, Mechanical Solutions, Inc.

Bearing Test Rig Dynamics Problem Identification and Model Tuning, #316 270E.E. Swanson, Mohawk Innovative Technology, Inc.; R.G. Kirk, Virginia PolytechnicInstitute and State University

Laser Vibrometry System for Rotating Bladed Disks, #317 277R.A. Lomenzo, A.J. Barker, A.L. Wicks, Virginia Polytechnic Institute and State University

Experimental Study of a Fluid Film Bearing with a Floating Ring, #318 283A. Petchenev, D.E. Bently, A. Muszynska, P. Goldman, Bently Rotor Dynamics ResearchCorporation

Transient Modal Analysis of Nonlinear Rotor-bearing Systems, #319 290R.W. Armentrout, E.J. Gunter, RODYN Vibration Analysis, Inc.

Experiments on the Dynamics of a Rubber Ring Seal, #91 297M. Amabili, G. Colombo, E. Prati, University of Parma

Motion and Vibration Control of a Flexible Structure, #260 302P. De Fonseca, H. Van Brussel, P. Sas, Katholieke Universiteit Leuven

10. System Identification I

Generation of Input Forcing Functions Through the Use of Measured Response andSystem Transfer Relations, #38 309

P. Avitabile, F. Piergentili, University of Massachusetts Lowell;K. Lown, SUN Microsystems, Inc.

Demonstration of Multiple Degree of Freedom Nonlinear System Identification Using Timeand Frequency Domain Methods, #299 315

D.E. Adams, R.J. Allemang, University of Cincinnati

Estimation of Modal Parameters and Their Uncertainties, #308 323P. Andersen, R. Brincker, Aalborg University

ARMA Models in Modal Space, #309 330R. Brincker, P. Andersen, Aalborg University

Free-free Modal Parameters Based on Testing in Flexible Support Configuration, #220 335Y. Soucy, Canadian Space Agency; J.L. Humar, Carleton University

Finite Element Implementation of Linear Modification Method for LocalStructural Modification, #188 342

T. Li, J. He, Victoria University of Technology

Modal Analysis of Structures with Frequency Dependent Properties, #111 349M. Rades, Universitatea Politehnica Bucuresti

Performance of a Single-versus a Twin-reference Controller in a Narrowband ActiveNoise Control Application, #416 356

S. Johansson, T.L. Lago, I. Claesson, University of Karlskrona/Ronneby

11. Automotive

A Method for Conducting Validation Testing on Polyamide Engine Components, #120 363R. Capitani, M. Pierini, University of Florence; S. Massimo, Magneti Marelli S.p.A.

Smoothing the Path to Market: Considering NVH Up Front, #158 368T.H. Drinan, A.K. Kennedy, Delphi Automotive Systems Saginaw Steering Systems

Reducing NVH Analysis Burden Using Automated Multi-level Substructuring, #164 372J.K. Bennighof, M.F. Kaplan, M.B. Muller, University of Texas at Austin

A Disciplined Approach for Instrument Panel Squeak & Rattle Prevention, #269 378F. Kavarana, B. Rediers, Defiance-MIRA; J. Samuelsson,G. Lagerberg, Volvo Car Corporation

Study of Experimental Modal Analysis on Tires, #222 385D.H. Guan, Tsinghua University; L.H. Yam, Hong Kong Polytechnic University;M.P. Mignolet, Arizona State University; Y.Y. Li, Hong Kong Polytechnic University

Time-Frequency Analysis of Automobile Road Data, #192 391M. French, Lear Corporation; P. Loughlin, University of Pittsburgh;L. Cohen, City University of New York, Hunter College; F. Cakrak, University of Pittsburgh

Sound Measurements Using a Large Microphone Array, #413 397M. Winberg, T.L. Lago, I. Claesson, C. Brandel, University of Karlskrona/Ronneby

Noise Path Analysis - A Tool for Reducing Testing Time, #286 401P. Glibert, N.B. Moller, Bruel & Kjaer

12. Structural Response Control of Civil Structures II

Developed by: A.K. Agrawal, The City College of the City University of New York

Application of Magnetorheological Dampers to Seismically Excited Structures, #361 410S.J. Dyke, F. Yi, S. Freeh, Washington University; J.D. Carlson, Lord Corporation

Semiactive Damping of Stay Cables: A Preliminary Study, #362 417E.A. Johnson, B.F. Spencer, Jr., University of Notre Dame; Y. Fujino, University of Tokyo

Active Control of a Communication Tower in Nanjing, China, #363 424R.J. Helgeson, University of Tennessee at Martin; A.M. Reinhorn,T.T. Soong, State University of New York at Buffalo

Non-proportional Damping and Semi-active Control, #69 431N.S. Doke, H.P. Gavin, Duke University

A Semi-active Stiffness Damper for Vibration Control of Civil Engineering Structures, #364 437J.N. Yang, University of California, Irvine; A.K. Agrawal, City College of the CityUniversity of New York; J.H. Kim, University of California, Irvine

Experimental Verification of Active Control for a Seismic-excited Full-scaled Building, #365 444C.H. Loh, P.Y. Lin, N.H. Chung, National Taiwan University

Structure Borne Noise of Trains in New Underground Station of Brussels Airport, #154 451P. Vanhonacker, Dynamic Engineering/D2S International nv

Finite Element Model Updating of a Damaged Structure, #417 457J.M.W. Brownjohn, P. Xia, Nanyang Technological University

13. Dynamics of Pipeline

Developed by: M.E. Martinez, PDVSA Intevep

Evaluation of Stresses in Piping Systems Subjected to Unspecified Random Excitation, #328 463A.N. Abdel-Hamid, The American University in Cairo; W.A. Farahat, Massachusetts

Institute of Technology

Model Validation of an Aerospace Structure, #329 470N. Imamovic, D.J. Ewins, Imperial College of Science, Technology & Medicine

Experimental Analysis and Parametric Updating of Dynamic Behavior of Piping SystemHaving Unknown Boundary Conditions, #330 475

S. Frikha, University of Paris 6; G. Coffignal, LM2S - ENSAM Paris; M. Gaudin, EDF-DER

Damage Identification on Piping Systems Usnig On-line Monitoring of DynamicProperties, #331 482

C.J. Kriel, P.S. Heyns, University of Pretoria

On Methods and Solutions for Diminishing Pipeline Vibration Levels, #332 489T. Cioara, University "Politechnica" Timisoara

Fluid-structure-interaction with the Boundary Element Method, #251 496B. Nolte, University of the Federal Armed Forces Hamburg; L. Gaul, University of Stuttgart

14A. Dynamics of Sports Equipment

Developed by: C.E. Knight, Virginia Polytechnic Institute and State University

The Dynamics of a Golf Club, #313 503A.L. Wicks, C.E. Knight, P. Braunwart, J. Neighbors, Virginia Polytechnic Instituteand State University

Golf Swing 'Signatures' on a Mockup Ball-striking Machine, #404 509C.E. Knight, R.G. Leonard, J. Neighbors, A.L. Wicks, Virginia Polytechnic Instituteand State University

Dynamic Characterization and Comparison of Golf Clubs, #156 513R.C. Merkel, The Modal Shop, Inc.; T. Blough, Royal Precision Golf Corp.

14B. Testing Techniques

New Developments in Multi-channel Test Systems, #391 518R.W. Bono, M.J. Dillon, K.B. Gatzwiller, The Modal Shop, Inc.;D.L. Brown, University of Cincinnati

A Framework for Smart Transducer Interface Systems, #389 525M.I. Schiefer, M.J. Lally, The Modal Shop, Inc.

Networkable Distributed Digital Accelerometers for Aerospace and Civil Applications, #390 530M.I. Schiefer, J. Moses, The Modal Shop, Inc.; L.C. Freudinger, NASA Dryden FlightResearch Center

15. Experimental Techniques II

Piezoelectric Strain Sensor, #55 537J.J. Dosch, PCB Piezotronics, Inc.

The Development of Piezoelectric Accelerometers Using Finite Element Analysis, #65 543B. Liu, Q. Yao, B. Kriegbaum, Bruel & Kjaer Sound Vibration Measurement A/S

Estimating Vibrational Energy Flow in Plates Using an Autoregressive Technique, #101 547M.L. Spisak, Allied Signal, Inc.; H.A. Evensen, Michigan Technological University

Some Comments on Digital Integration to Measure Displacements Using Accelerometers, #130 554J.G.T. Ribeiro, Military Institute of Engineering; J.L.F. Freire, J.T.P. de Castro,Catholic University of Rio de Janeiro

High-energy Modal Excitation Technique Utilizing Powder-actuated Impact Tool, #1 560M.S. Berman, T.H. Li, U.S. Army Research Laboratory

Accelerometer Selection for and Application to Modal Testing, #11 566P.L. Walter, Endevco Corp/Texas Christian University

Updating Finite Element Model Using Test Data, #256 573L. Wei, China North Vehicle Research Institute

16. Damage Detection/Infrastructure

A Pattern Recognition Approach for Damage Localization Using Incomplete Measurements, #95 579F.P. Lopez, D.C. Zimmerman, University of Houston

An Experimental Study of Damage Detection Using Modal, Strain, and Ritz Properties, #54 586D.C. Zimmerman, G.H. James, III, University of Houston; T.T. Cao, NASA JohnsonSpace Center

Damage Detection Comparison Between Damage Index Method and ARMA Method, #172 593G.V. Garcia, New Mexico State University; R. Osegueda, D. Meza, University ofTexas at El Paso

Damage Identification with Linear Discriminant Operators, #200 599C.R. Farrar, D.A. Nix, T. Duffey, Los Alamos National Laboratory;P.J. Cornwell, Rose-Hulman Institute of Technology;G.C. Pardoen, University of California, Irvine

A Review of Methods for Developing Accelerated Testing Criteria, #201 608C.R. Farrar, Los Alamos National Laboratory; T.A. Duffey, Consulting Engineer;P.J. Cornwell, Rose-Hulman Institute of Technology; M.T. Bement, Texas A&M University

Application of Ritz Vectors to Damage Detection for a Grid-type Bridge Model, #81 615H. Sohn, K.H. Law, Stanford University

The Influence of Noise in FRF Based Damage Detection Techniques: an Initial Study, #407 622M.L.M. Duarte, R.R.S. Cypriano, Federal University of Minas Gerais

17. Analytical Methods/Updating

Sensors, Degrees of Freedom, and Generalized Modeshape Expansion Methods, #8 628E. Balmes, Ecole Centrale Paris

Iterative Method for Combined Mode Shape Expansion and Parameter Updating, #99 635D. Maus, University of Kaiserslautern; H. Wittig, ZPT Saar ev.

Target Mode Selection Based on Load Indicators, #106 642Y.T. Chung, The Boeing Company

On the Natural Frequencies and Antiresonances of Modified Structures, #294 648J.E. Mottershead, The University of Liverpool

Frequency Response Functions and Finite Element Equations with Rigid-body Constraints,and Their Application in Model Updating, #295 654

M.I. Friswell, University of Wales Swansea; J.E. Mottershead, University of Liverpool

Using Modeling & Identification to Improve Copying Accuracy of the Copying System, #415 660Y. Huang, H. Lu, Fuzhou University

18. Laser Vibrometry and Applications I

Developed by: E.P. Tomasini, University of Ancona

Localizing Structural Damage Using Structural Intensity Divergence Plots, #167 664J.M.C. Dos Santos, J.R.F. Arruda, R.M. da Cruz, State University of Campinas

Novel Single-beam Vector Velocity Vibrometer for Modal Analysis, #381 , 670M.B. Klein, G.D. Bacher, Lasson Technologies

Analysis of Vibration Behavior and Defects with the Laser-scanning Vibrometer, #382 674L. Zipser, H. Franke, University of Applied Sciences Dresden

Modeling of Directional Characteristic of Ultrasonic Radiator by Data ofHolographic Interferogram, #380 680

V. Minialga, Kaunas University of Technology

An Investigation of the Use of Wavelets in Vibration Applications, #383 684G.D. Catalano, United States Military Academy

Non-invasive Measurements of Structural Damage by Laser Scanning Vibrometer:An Experimental Comparison Among Different Exciters, #302 692

P. Castellini, E. Esposito, F. Miandro, N. Paone,C. Santolini, E.P. Tomasini, University of Ancona

Use of Embedded Optical Fibers for Structural Analysis, #397 699A. Paolozzi, University of Rome "La Sapienza"; M.A. Caponero, ENEA CentraRicerche Frascati; F. Cassese, Ferrari Space Division; M. Leonardi, Universityof Rome "La Sapienza"

19. Dynamics of Bridges

Developed by: A. Cunha, University of Porto

Modal Identification and Correlation with Finite Element Parameters ofVasco da Gama Bridge, #334 705

A. Cunha, E. Caetano, R. Calgada, R. Delgado, University of Porto

Modal Analysis from Ambient Vibration Survey of Bridges: LNEC Experience, #335 712J. Rodrigues, A. Campos-Costa, LNEC-National Laboratory for Civil Engineering

Wind Response of Long-span Bridges: In-situ Measurements and Modal Analysis, #336 719D. Delaunay, G. Grillaud, J. Bietry, C. Sacre, Centre Scientifique et Technique du Batiment

Dynamic Bridge Behavior Under Traffic, #337 726B. Hoffmeister, G. Sedlacek, Institute of Steel Construction

Dynamic Loads for Steel Girder Bridges, #28 731A.S. Nowak, University of Michigan; S. Kim, Taegu University;M.M. Szerszen, University of Michigan

Fuzzy Logic Control of Cable-stayed Bridges in the Presence of Seismic Excitation, #356 738M.E. Magana, Oregon State University; J.J Rodellar, Universitat Politecnica de Catalunya

Field Test to Determine Frequencies of Bridge Stay Cables, #36 745S.W. Smith, M.L. Johnson, University of Kentucky

Diagnosis of Reinforced Concrete Bridges by Means of Dynamic Testings, #137 752P.A.O. Almeida, P.B. Fusco, E. Penner, University of Sao Paulo

20. Analytical Methods II

Evaluation of MPLM Design and Mission 6A Coupled Loads Analyses, #34 758P.S. Bookout, E. Ricks, NASA Marshall Space Flight Center

Using Distributed Modifications to Change the Dynamic Behavior of Structures, #31 763W. D'Ambrogio, University of L'Aquila; A. Sestieri, University of Rome "La Sapienza"

Dynamic Expansion of Frequency Response Functions, #35 769F. Piergentili, P. Avitabile, J. O'Callahan, University of Massachusetts Lowell

Use of Perturbation Analysis for Complex Modes, #63 779A.W. Lees, University of Wales, Swansea

Comparison of Vectors and Quantification of Their Complexity, #73 785G. Lallement, University of Franche-Comte; J. Kozanek, Academy of Sciences of theCzech Republic

Damage Identification in Structural Joints Using Generic Joint Elements, #217 792D. Wang, University of Arizona; M.I. Friswell, University of Wales, Swansea;P.E. Nikravesh, University of Arizona; E.Y. Kuo, Ford Motor Company

Impacts on Rotating Beams, #266 799S. Abrate, Southern Illinois University at Carbondale

Free Vibration of Composite Plates and Identification of Elastic Properties, #267 806S. Abrate, M. Perry, Southern Illinois University at Carbondale

21. Modal Parameter Identification I

The SMAC Modal Parameter Extraction Package, #105 812R.L. Mayes, S.E. Klenke, Sandia National Laboratories

Evolving Autonomous Modal Parameter Estimation, #53 819K.S. Chhipwadia, D.C. Zimmerman, G.H. James III, University of Houston

Modal Testing of a Bladed Disk, #9 826J.J. Hollkamp, R.W. Gordon, Air Force Research Laboratory

Application of a Differencing to Frequency Domain Parameter Estimation Algorithms, #77 833T.M. Dahling, Orbital Sciences Corporation; R.J. Allemang, A.W. Phillips,University of Cincinnati

Application of Autonomous Modal Identification to Traditional and Ambient Data Sets, #141 840G.H. James III, D.C. Zimmerman, K.S. Chhipwadia, University of Houston

Modal Deflation Procedure for Parameter Estimation, #175 846C.Y. Shih, The Boeing Company

Using Cyclic Averaging With Impact Testing, #396 850W.A. Fladung, AT. Zucker, A.W. Phillips, R.J. Allemang, University of Cincinnati

Optimal Sensor Placement for Modal Parameter Identification Using Signal SubspaceCorrelation Technique, #254 854

A.P. Cherng, National I-Lan Institute of Technology

Using Intelligent Gas to Identify Local Modal Parameters of Large Complex Structure, #218 862Z. Qian, L. Dong, P. Feng, Zhe Jiang University

22. Damage Detection/Large Structures

Damage Detection Using 2-D Strain Energy Distribution and Scanning Laser, #182 869S.E. Chen, S. Venkatappa, S. Petro, H. GangaRao, West Virginia University

Detection of Damage in Axial (Membrane) Systems, #15 876T.A. Duffey, Los Alamos National Laboratory-Consulting Engineer;W.E. Baker, University of New Mexico; C.R. Farrar, Los Alamos National Laboratory;W.H. Rhee, Texas Tech University

Application of Two Damage Detection Techniques to an Offshore Platform, #233 882R. Ruotolo, C. Surace, Politecnico di Torino; K. Worden, University of Sheffield

Improved Vibration-based Damage Detection Algorithm for Structures, #307 889J.T. Kim, Y.S. Ryu, Pukyong National University; N. Stubbs, Texas A&M University

Joint Time-frequency Analysis of a 20 Story Instrumented Building DuringTwo Earthquakes, #76 896

C J . Black, C.E. Ventura, The University of British Columbia

Dynamic Strain Measurements of the Lindquist Bridge, #56 903S.E. Cook, C.E. Ventura, The University of British Columbia

Application of Wavelet Transform to Structural Damage Detection, #12 908C J . Lu, Y.T. Hsu, National Taiwan University

On-orbit Microdynamic Behavior of a Flexible Structure: IPEX II, #196 915M.B. Levine, NASA Jet Propulsion Laboratory

23. Model Updating & Correlation

Faster, Easier Finite Element Model Reduction, #173 922T.A. Deiters, Structural Dynamics Research Corporation;K.S. Smith, Alliance Spacesystems Inc.

A Comparison of Finite Element Model Error Localization Methods, #115 929A. Larsson, T. Abrahamsson, Chalmers University of Technology

Modal Analysis for Finite Element Updating, #264 936Y.G. Tsuei, C. C. Day, National Cheng Kung University

FE-Model Correlation of a Helicopter Using Ground Test Results, #131 940T. Uhl, W. Bochniak, W. Lisowski, University of Mining and Metallurgy; L. Hermans,H. Van der Auweraer, LMS International; J. Malecki, PZL WSK Swidnik

Dynamic Testing and Correlation of a Frustum, #184 947M.A. Kaiser, J.N. Howard, J.D. Neighbors, Virginia Polytechnic Institute and State University

Input Force Estimation Using an Inverse Structural Filter, #225 954A.D. Steltzner, D.C. Kammer, University of Wisconsin-Madison

Applying Transfer Path Analysis to Large Home Appliances, #157 961C D . Van Karsen, G. Gwaltney, J. Blough, Michigan Technological University

Experimental Analysis of the Dynamic Behavior of a Turbomachine Foundation Structure, #159 966M. Dias Jr., K.L. Cavalca, State University of Campinas

24. Laser Vibrometry and Applications II

Developed by: E.P. Tomasini, University of Ancona

Rapid Beam Load Capacity Assessment Using Dynamic Measurements, #211 973M.R. Chowdhury, U.S. Army Engineer Waterways Experiment Station

Measuring Area Mode Shapes with a Scanning Laser Doppler Vibrometer, #384 980A.B. Stanbridge, M. Martarelli, D.J. Ewins, Imperial College of Science,Technology and Medicine

The Scanning Laser Doppler Vibrometer Applied to Impact Modal Testing, #385 986A.B. Stanbridge, M. Martarelli, D.J. Ewins, Imperial College of Science,Technology and Medicine

Translation and Rotation Response Measurements of Large Sructures UsingLaser Vibrometry, #386 992

R.I. Levin, N.A.J. Lieven, University of Bristol; G.W. Skingle, DERA

Laser Pulse Excitation for Modal Analysis, #303 999P. Castellini, G.M. Revel, L. Scalise, University of Ancona

Tracking Laser Vibrometer Measurements for Estimation of Excitation Level inRotating Structures, #304 1005

P. Castellini, G.M. Revel, University of Ancona

Vibromotor Optimization Using Laser Holographic Interferometry, #406 1012A. Palevicius, Kaunas Jesuit High School; E.P. Tomasini, University of Ancona;M. Ragulskis, Kaunas University of Technology

Study of Modal Behavior of a Hinged Girder Model Using Scanning Laser Vibrometer, #181 1016S. Venkatappa, S.E. Chen, S. Petro, H. GangaRao, West Virginia University

25. System Identification to Monitor Civil Engineering Structures I

Developed by: G. de Roeck, Katholieke Universiteit Leuven

Z24 Bridge Damage Detection Tests, #338 1023C. Kramer, C.A.M. de Smet, EMPA; G. De Roeck, Katholieke Universiteit Leuven

Comparison of Ambient and Forced Vibration Testing of Civil Engineering Structures, #346 1030C. Kramer, C.A.M. de Smet, EMPA; B. Peeters, Katholieke Universiteit Leuven

Comparison of System Identification Methods Using Ambient Bridge Test Data, #340 1035P. Andersen, R. Brincker, Aalborg University; B. Peeters, G. De Roeck, KatholiekeUniversiteit Leuven; L. Hermans, LMS International; C. Kramer, EMPA

FE-Modeling of RC Structures within the SIMCES Project, #342 1042R.G. Flesch, B. Stebernjak, B. Freytag, Graz University of Technology;J. Maeck, Katholieke Universiteit Leuven; S. Olia, EMPA

Output-only Modal Analysis: Development of a GUI for MATLAB, #392 1049B. Peeters, B. Van den Branden, A. Laquiere, G. De Roeck, Katholieke Universiteit Leuven

26. Excitation Techniques of Civil Structures

Developed by: J.N. Howard, Virginia Polytechnic Institute and State University

Inducing Dynamic Responses in Concrete Dams, #322 1056Z.H. Duron, Harvey Mudd College

Excitation Methods for Bridge Structures, #323 1063C.R. Farrar, T.A. Duffey, Los Alamos National Laboratory; P.J. Cornwell, Rose-HulmanInstitute of Technology; S.W. Doebling, Los Alamos National Laboratory

Comparison of Dynamic Characteristics of an Office Building Obtained from DifferentExperimental Methods, #324 1069

C.E. Ventura, V. Latendresse, The University of British Columbia

Investigation of Pedestrian Walking Loads on a Cable Stayed Footbridge by UsingModal Testing and FE Model Updating, #325 1076

M.J. Hartley, A. Pavic, P. Waldron, University of Sheffield

Designing and Building a Force Plate for Measuring Input Forces in Modal Tests, #326 1083J.N. Howard, M.A. Kaiser, T.M. Murray, Virginia Polytechnic Institute and State University

Yellow River Railway Bridge's Modal Test Exciting with Hammer, #113 1089H.Q. Ying, S. Shen, S.H. Lei, J.M. Liu, China Orient Institute of Noise Vibration

27. Modal Analysis: Reducing Time to Market

Transient Nonlinear Dynamics of Camshafts, #48 1093S. Kuusisto, ABB Motors Oy

Parameter Identification in Rotor Bearing Systems, #51 1100V. Steffen, Jr., E.G. Assis, Federal University of Uberlandia

Synchronous Sampling Sideband Orders from Helical Planetary Gear Sets, #310 1107C.E. Fair, A.L. Wicks, Virginia Polytechnic Institute and State University;W.R. Kelley, Borg Warner Automotive

Separating Close and Crossing Orders With Frequency Domain Order Tracking., #289 1113J.R. Blough, Michigan Technological University; D.L. Brown, University of Cincinnati

Applied-Modal-Analysis Aided Design of the Vertical Pump, #197 1119B. Sheng, K. Imamura, H. Matsumoto, Kubota Corporation

28. Processing Modal Data

Experimental Evaluation of the Transmissibility Matrix, #418 1126A.M.R. Ribeiro, N.M.M. Maia, J.M.M. Silva, Technical University of Lisbon/I.ST.

GIF Animated of Mode Shapes and Other Data on the Internet, #20 1130R.S. Pappa, NASA Langley Research Center

Custom-designed Filters Through Time-window Modification, #179 1145S. Olsson, Signal Control Sweden AB; T.L. Lago, I. Claesson, University ofKarlskrona/Ronneby

DSP Based Processing of Vibration Signals of Varying Frequency, #171 1150A.C. Tellez-Anguiano, Instituto Tecnologico de Culiacan; M.A. Oliver-Salazar, CentraNacional de Investigacion y Desarrollo Tecnologico; J.E. Aguirre-Romano, Instituto deInvestigaciones Electricas; E.S. Gutierrez-Wing, Centra Nacional de Investigacion yDesarrollo Tecnologico

Data Block Length Effects on Damage Detection, #287 1154A. Agneni, L. Balis Crema, A. Paolozzi, University of Rome "La Sapienza"

Frequency Resolution Effects on FRF Estimation: Cyclic Averaging vs. Large Block Size, #321 1161A.W. Phillips, AT. Zucker, R.J. Allemang, University of Cincinnati

Updating Finite Element Models Using FRF Correlation Functions, #409 1169A.E. Dascotte, J. Strobbe, Dynamic Design Solutions

29. Non-linear Systems

Nonlinear Identification of a Scaled Structural Dynamic Model of the F-15 Tail Section, #185 1175A.A. El-Badawy, A.H. Nayfeh, Virginia Polytechnic Institute and State University

Comparison of Experimental Identification Techniques for a Nonlinear SDOF System, #203 1182R.W. Krauss, A.H. Nayfeh, Virginia Polytechnic Institute and State University

Modal Parameter Estimation of a Simulated Non-linear Structure, #228 1188G.C Foss, Boeing Information, Space & Defense Systems

Spatial Method of Characterizing Nonlinearities in Multiple Degree of FreedomVibrating Systems, #300 1195

D.E. Adams, R.J. Allemang, University of Cincinnati

Nonlinear Bending-torsion Oscillations of Cantilever Beams to Combination ParametricExcitation, #206 1203

H.N. Arafat, A.H. Nayfeh, Virginia Polytechnic Institute and State University

Conditioned Frequency Response Estimators for Nonlinear Systems, #161 1210CM. Richards, Caterpillar Inc.; R. Singh, Ohio State University

Low-dimensional Model for Nonlinear Vibrations of Circular Cylindrical Shells, #93 1217M. Amabili, University of Parma; F. Pellicano, Universita di Modena

30. Modal Analysis Applied to Bridge Assessment

Developed by: H. Ghasemi, Turner-Fairbank Highway Research Center

Measuring Bridge Performance Using Modal Parameter Based Non-destructiveDamage Detection, #398 1223

C. Sikorsky, California Department of Transportation; N. Stubbs, S. Park, S. Choi,R. Bolton, Texas A&M University

Modal Analysis as a Bridge Monitoring Tool, #399 1230F.N. Catbas, Drexel Intelligent Infrastructure & Transportation Safety Institute; M.S. Lenett,University of Cincinnati; A.E. Aktan, Drexel Intelligent Infrastructure & TransportationSafety Institute; D.L. Brown, A.J. Helmicki, V.J. Hunt, University of Cincinnati

Vibration Suppression Measures for Stay Cables, #400 1237H. Tabatabai, A.B. Mehrabi, Construction Technology Laboratories, Inc.

Modal Analysis of Long Span Truss Bridges, #401 1244I.E. Harik, CM. Madasamy, D. Chen, University of Kentucky; D. Herd, KentuckyTransportation Cabinet

Condition Assessment of Commissioned Infrastructure Using Modal Analysisand Flexibility, #402 1251

M.S. Lenett, V.J. Hunt, A.J. Helmicki, D.L. Brown, University of Cincinnati; F^N. Catbas,A.E. Aktan, Drexel Intelligent Infrastructure & Transportation Safety Institute

A Methodology to Nondestructively Evaluate the Structural Properties of Bridges, #403 1260N. Stubbs, Texas A&M University; C. Sikorsky, California Department, of Transportation;S. Park, S. Choi, R. Bolton, Texas A&M University

Measuring Bridge Modal Parameters for use in Non-destructive Damage Detection andPerformance Algorithms, #243 1269

R. Bolton, N. Stubbs, S. Park, S. Choi, Texas A&M University;C. Sikorsky, California Department of Transportation

3 1 . System Identification to Monitor Civil Engineering Structures II

Developed by: G. de Roeck, Katholieke Universiteit Leuven

Numerical Simulation of Damage Scenarios of Bridge Z24, #343 1276M. Abdel Wahab, J. Maeck, G. De Roeck, Katholieke Universiteit Leuven

Using Numerical Experimentation as a Tool for Damage Diagnosis, #344 1283M. Brughmans, K. Daemen, LMS International

Damage Localization in Reinforced Concrete Beams by Dynamic Stiffness Determination, #345 1289J. Maeck, M. Abdel Wahab, G. De Roeck, Katholieke Universiteit Leuven

Efficiency Control of Strengthening Work by Dynamic System Identification. Case Study:Barmes Bridge, #347 1296

C. Castiglioni, Politecnico di Milano; M. Garozzo, G. Pasqualato, Sineco S.p.A;S. Vajna de Pava, A. Zambrano, Politecnico di Milano

Anti-seism of Communication Equipment via Active Control, #17 1303X. Liu, Y. Zhang, Q. Li, J. Li, Beijing Universtiy of Posts and Telecommunications

32. Diagnostics of Rotating Machinery

Developed by: H.A. Gaberson, Naval Facilities Engineering Service Center

An Assessment of Turbomachinery Condition Monitoring and FailurePrognosis Technology, #348 1310

H.C Pusey, Society for Machinery Failure Prevention Technology

Electric Current Modal Impulses to Detect Motor-driven Equipment Condition, #350 1317W.D. Marscher, Mechanical Solutions, Inc.

Energy Losses Caused by Machinery Misalignment and Unbalance, #205 1322H.A. Gaberson, R. Cappillino, Naval Facilities Engineering Service Center

Transfer Function Representation of Flexible Supports and Casings ofRotating Machinery, #160 1328

J.A. Vazquez, L.E. Barrett, University of Virginia

Fault Detection in Ball-bearings Using Wavelet Variance, #234 1335W.J. Staszewski, University of Sheffield; R. Ruotolo, Politecnico di Torino;D.M. Storer, Centra Ricerche FIAT

33. Aircraft/Aerospace-Damage Detection

Damage Detection and Localization Using a Maximum Likelihood Estimator, #124 1340E. Parloo, P. Guillaume, M. Van Overmeire, Vrije Universiteit Brussel

Vibration Signal Processing for the Westland Helicopter Data, #82 1347S. Braun, M. Feldman, Technion-lsrael Institute of Technology;M. Sidahmed, UTC France; M. Zacksenhouse, Technion-lsrael Institute of Technology

Damage Detection on a Wind Turbine Blade Section, #134 1359M.J. Sundaresan, M.J. Schulz, J. Hill, E.A. Wheater, F. Ferguson, North CarolinaA&T State University; P.F. Pai, University of Missouri-Columbia

Damage Detection of a Gyroscopic Systems Using an Asymmetric Minimum RankPerturbation Theory, #57 1366

K.C. Yap, D.C. Zimmerman, University of Houston

Experimental Validation of the LMI Methods for Structural Damage Detection, #89 1373M.O. Abdalla, K.M. Grigoriadis, D.C. Zimmerman, University of Houston

Two Statistical Pattern Recognition Methods for Damage Localization, #414 1380I. Trendafilova, W. Heylen, P. Sas, Katholieke Universiteit Leuven

A Structural Damage Identification Procedure with Application to a Frame Structurewith Bolted Joints, #239 1387

L. Yu, Yangtze River Scientific Research Institute; M. Link, University of Kassel;S. Law, The Hong Kong Polytechnic University; L. Zhang, Nanjing University of Aeronauticsand Astronautics

34. Experimental Techniques III

A Comparison of MIMO-FRF Excitation/Averaging Techniques on Heavily andLightly Damped Structures, #320 1395

A.W. Phillips, AT. Zucker, R.J. Allemang, University of Cincinnati

An Acoustic Non Invasive Technique for the Diagnosis of Plaster Detachment in Frescos, #207 1405D. Del Vescovo, A. Fregolent, Universita di Roma La Sapienza

Modal Analysis of the Bleachers of a Sporting Gym, #186 1412P.A.O. Almeida, J.F.S. Rodrigues, University of Sao Paulo

Modal Analysis of the Structure of a Soccer Stadium, #187 1417P.A.O. Almeida, J.F.S. Rodrigues, University of Sao Paulo

Dynamic Modulus Estimation and Structural Vibration Analysis, #166 1423A. Gupta, S. Khandaswamy, S. Yellepeddi, Northern Illinois University;T. Mulcahy, J. Hull, Argonne National Laboratory

A Design Assessment Tool for Squeak and Rattle Performance, #80 1428D.E. Soine, H.A. Evensen, CD. Van Karsen, Michigan Technological University

Localization of Structural Excitation Using Matched Field Processing Techniques, #78 1433M. Craun, D. Feit, Naval Surface Warfare Center

35. Substructuring

Using Rigid Connections in Experimental Modal Synthesis: Implementationand Validation, #125 1440

B. Dierckx, W. Leurs, N. Boucart, LMS International; W. Moll, Daimler-Benz AG

On the Dynamic Properties of Reduced Systems in Structural Coupling, #152 1445A.P.V. Urgueira, Faculdade de Ciencias e Tecnologia; N.M.M. Maia, TechnicalUniversity of Lisbon/I.ST.; R.A.B. Almeida, Faculdade de Ciencias e Tecnologia

Experimental Evaluation of Receptance Coupling Analysis Applied toRotor/Stator System, #168 1451

J.V. Ferreira, D.J. Ewins, Imperial College of Science, Technology and Medicine

Vibration Characteristics of a Beam with Nonlinear Support Using ReceptanceCoupling Analysis, #169 1458

J.V. Ferreira, D.J. Ewins, Imperial College of Science, Technology and Medicine

Experimental Modal Analysis for a Satellite with Flexible Appendages, #46 1465K. Komatsu, M. Sano, National Aerospace Laboratory Japan;A. Tsujihata, National Space Development Agency

Component Mode Synthesis Methods for Non-proportionally Damped Systems, #58 1472J.A. Morgan, General Motors Powertrain Group; C. Pierre,G.M. Hulbert, University of Michigan

The Importance Assessment of RDOF in FRF Coupling Analysis, #67 1481W. Liu, D.J. Ewins, Imperial College of Science, Technology and Medicine

36. Model Correlation & Updating for Nonlinear Dynamics

Developed by: S.W. Doebling and F.M. Hemez, Los Alamos National Laboratory

Bilinear System Characteristics from Nonlinear Time Series Analysis, #374 1488N.F. Hunter, Jr., Los Alamos National Laboratory

Statistical Tests of System Linearity Based on the Method of Surrogate Data, #375 1495T.L. Paez, Sandia National Laboratories; N.F. Hunter, Los Alamos National Laboratory;J. Red-Horse, Sandia National Laboratories

Test-analysis Correlation and Finite Element Model Updating for Nonlinear,Transient Dynamics, #153 1501

F.M. Hemez, S.W. Doebling, Los Alamos National Laboratory

Model Correlation and Updating of a Nonlinear Finite Element Model Using CrushTest Data, #376 1511

M.C. Anderson, T.K. Hasselman, ACTA, Inc.; T.G. Carne, Sandia National Laboratories

Approximation and Identification of Nonlinear Structural Dynamics, #377 1518D.C. Zimmerman, University of Houston; T.K. Hasselman, M.C. Anderson, ACTA Inc.

A Procedure to Determine Accurate Rotations from Measured Strains and Displacements forSystem Identification, #378 1525

K.C Park, G.W. Reich, University of Colorado at Boulder

37. Finite Element

Models For Thick Beams and Frames, #62 1531A.W. Lees, S.E. Hirdaris, University of Wales, Swansea

Mixed-formulation Representations of Sub-systems, #64 1538S.D. Garvey, U.H. Eke, J.E. Penny, Aston University;M.I. Friswell, University of Wales, Swansea

A Validation of Bayesian Finite Element Model Updating for Linear Dynamics, #151 1545F.M. Hemez, S.W. Doebling, Los Alamos National Laboratory

Finite Element Model Updating of the Welded Joints in a Tubular H-frame, #49 1556B. Horton, H. Gurgenci, University of Queensland/CMTE;M. Veidt, University of Queensland; M.I. Friswell, University of Wales, Swansea

Updating of the Starship Fuselage Finite Element Model Using Modal Data, #258 1563S. Hassiotis, University of South Florida

Finite Element Modeling for Floating Raft Isolation Systems, #39 1570Z.Q. Qu, H.X. Hua, Z.F. Fu, Shanghai Jiao Tong University

38. Analytical Methods III

Visualization and Dimension Reduction of High-dimensional Data for Damage Detection, #275 1576K. Worden, G. Manson, University of Sheffield

Operating Modes of a Teetered-rotor Wind Turbine, #268 1586G.S. Bir, National Renewable Energy Laboratory; K. Stol, University of Colorado at Boulder

A Practical Method to Identify the Potential Resonance of CentrifugalCompressor Impellers, #226 1597

Q. Wang, Ingersoll-Rand Company

Exact Steady-state Probabilistic Density of Nonlinear Stochastic Systems, #259 1603R. Wang, K. Yasuda, Nagoya University

The Identification of Rotor Unbalance from Measured Foundation Response Data, #61 1610S. Edwards, A.W. Lees, M.I. Friswell, University of Wales, Swansea

Time Domain-based Identification of Mechanical Characteristics of Supporting Elements, #177 1616L.A. da Silva, D.A. Rade, Federal University of Uberlandia

39. Experimental Techniques IV

Converting a Steering Knuckle into a 6-DOF Force Transducer, #291 1622M.C Witter, S.M. Dumbacher, D.L. Brown, University of Cincinnati

A Novel Approach for Estimating Natural Frequencies of Foundation Vibrations, #210 1633M.R. Svinkin, Independent Consulting Engineer

Laboratory Simulation of Response to a Distributed Pressure Load, #195 1640T.W. Simmermacher, R. Mayes, Sandia National Laboratories

A Method for the Indirect Measurement of Acoustic Power Emitted bySynchronous Belts, #305 1646

R. Di Sante, Universita degli Studi di Ancona; G. Ferri, Dayco Europe SpA;G.M. Revel, G.L. Rossi, Universita degli Studi di Ancona

Determination of Unknown Impact Force Acting on Arbitrary Structures, #213 1653BT. Wang, CH. Chiu, National Pingtung University of Science & Technology

Aeroelastic Investigation on a Fighter Aircraft Including Flight Control Systems, #231 1660W.G. Luber, O. Sensburg, Daimler-Benz Aerospace AG

40. Rotating Machinery II

Rotor Balancing Using Vibration Data from Fast Run-ups and Coast-downs, #107 1669E.S. Gutierrez-Wing, Centra Nacional de Investigacion y Desarrollo Tecnologico;J.E. Aguirre-Romano, Instituto de Investigaciones Electricas

Condition Monitoring and Failure Prediction for Various Rotating Equipment Components, #140 1674JT . Roth, Arkansas State University; S.M. Pandit, Michigan Technological University

A Fast Multi-plane Shaft Balancing Method With Adaptive Features, #180 1681S. Olsson, Signal Control Sweden AB; T.L. Lago, University of Karlskrona/Ronneby;H. H&kansson, Volvo Car Cooperation

Stability of Rotors: The Influence of Different Journal Bearing Models, #25 1686F. Vatta, A. Vigliani, Politecnico di Torino

Backward Whirl Investigations in Isotropic and Anisotropic Systems withGyroscopic Effects, #79 1692

S.U. Lee, C. Leontopoulos, C. Besant, Imperial College of Science, Technologyand Medicine

Application of Triaxial Force Sensor to Impact Testing of Spinning Rotor Systems, #98 1699CL. Kessler, University of Cincinnati/U.S. Air Force Research Laboratory;J. Kim, University of Cincinnati

4 1 . Bridges

Ambient Vibration Measurements of The Lindquist Bridge in British Columbia, Canada, #75 1706C J . Black, C.E. Ventura, University of British Columbia

Determination of the Dynamic Effects on Reinforced Concrete Bridges, #136 1713P.A.O. Almeida, E. Penner, University of Sao Paulo;R. Tanaka, L.T. Muramoto, LYNX-Electronic Technology Ltda.

Bridge Monitoring Using a 64-channel Fiber Bragg Grating System, #150 1719M.D. Todd, Naval Research Laboratory; C.C. Chang, URF, Inc.; G.A. Johnson,ST . Vohra, Naval Research Laboratory; J.W. Pate, Physical Science Laboratory;R.L. Idriss, New Mexico State University

Evaluation of a Road Bridge Dynamic Response to Ambient Excitation by Wavelet and OtherEstimation Techniques, #271 1726

A. Fasana, L. Garibaldi, E. Giorcelli, S. Marchesiello, M. Ruzzene, Politecnico di Torino

Analytical and Experimental Study of a Three Span Bridge in Alberta, Canada, #74 1737CJ. Black, C.E. Ventura, University of British Columbia

Actions of a Standard Vehicle on Bridges of Reinforced Concrete Bridges, #138 1744P.A.O. Almeida, E. Penner, University of Sao Paulo; R. Tanaka,LT. Muramoto, LYNX-Electronic Technology Ltda.

Performance Evaluation of a Base-isolated Bridge Using Complex Modal Analysis, #123 1749K. Kaito, M. Abe, Y. Fujino, MT.A. Chaudhary, The University of Tokyo

42. Modal Testing Methods I

Determination of Material Properties of Plates from Modal ESPI Measurements, #5 1756L. Gaul, K. Willner, S. Hurlebaus, University of Stuttgart

Analysis of Stochastic Structures: Perturbation Method and Projection onHomogeneous Chaos, #29 1763

O. Dessombz, A. Diniz, F. Thouverez, L. Jezequel, Ecole Centrale de Lyon

Improving Exciter Performance in Modal Testing, #273 1770T.R. Comstock, University of Tennessee at Martin

Experience in Estimating Fixed-base Modal Parameters from Testing inFlexible Support Configuration, #221 1776

Y. Soucy, Canadian Space Agency; J.L. Humar, Carleton University

Modal Testing for Microstructures, #60 1783Y.F. Chou, L.C Wang, National Taiwan University

A State Space Approach to Output-only Vibro-acoustical Modal Analysis, #52 1789M. Abdelghani, IRISA-INRIA; L. Hermans, H. Van der Auweraer, LMS International

Modal Analysis of an Upper Nevada Penstock at Hoover Dam, #10 1794R.V. Todd, Bureau of Reclamation

43. Active Control

Active Control of Chatter in Turning - The Origin of Chatter, #283 1799L. Hakansson, I. Claesson, P.O.H. Sturesson, T.L. Lago, University of Karlskrona/Ronneby

Fluid Wave Actuator for the Active Control of Hydraulic Pulsations in Piping Systems, #198 1806J.P. Maillard, T.L. Lago, University of Karlskrona Ronneby; C.R. Fuller, VirginiaPolytechnic Institute and State University

An Efficient Training Technique for a Neural-network Controller forSeismically-excited Structures, #227 1813

D.A. Liut, E.E. Matheu, D.T. Mook, M.P. Singh, Virginia Polytechnic Instituteand State University

Optimal Placement of Actuators and Sensors for Vibration Active Control, #238 1820F. Liu, L. Zhang, Nanjing University of Aeronautics and Astronautics;M. Link, University of Kassel

Active Control of Machine Tool Chatter, #178 1826L. Hakansson, I. Claesson, T.L. Lago, University of Karlskrona/Ronneby

Sampling Technique in Wavelet Analysis of Vibrating Signals of Rotating Machinery, #395 1832S. Qin, Chongqing University Test Center

44. Analytical Methods IV

The Energy Flow Method for Strongly Coupled Systems, #2 1839Q.J. Zhang, M.G. Sainsbury, The University of Hong Kong

Wave Propagation Analysis of Frame Structures Using the Spectral Element Method, #37 1846H. Igawa, K. Komatsu, M Sano, National Aerospace Laboratory

Random Vibration Analysis Using Statistically Equivalent Transient Analysis, #174 1852C.W. Engelhardt, Structural Dynamics Research Corporation

Utilizing Gauss-Hermite Quadrature to Evaluate Uncertainty in Dynamic System Response, #202 1856R.V. Field, Jr., T.L. Paez, J.R. Red-Horse, Sandia National Laboratories

Dynamic Behavior Modification for Continuous System, #114 1862H.C Chen, Y.F. Chou, CJ. Jang, National Taiwan University

A New Sensitivity Analysis Method of Frequency Response Function, #86 1869H. Hua, Y. Shi, Z. Qu, Shanghai Jiao Tong University

Structural Damages Detection Based on Dynamic Model Intelligent Updating, #88 1873Y. Xu, Y. Zhou, Wuhan Transportation University

45. Modal Parameter Identification II

Structural Identification Using Inverse System Dynamics, #224 1880D.C. Kammer, A.D. Steltzner, University of Wisconsin-Madison

Maximum Likelihood Identification of Modal Parameters from Operational Data, #127 1887P. Guillaume, Vrije Universiteit Brussel; L. Hermans, H. Van der Auweraer,LMS International

Effect of Residual Compliance in Hard-mounted Test Configurations on MeasuredModal Parameters, #146 1894

A. Grillenbeck, S. Dillinger, IABG mbH; W. HuBler, W. Beuchel, Daimler-Benz Aerospace

Detection and Location of a Crack in a Plate Using Modal Analysis, #306 1902S.H. Yoo, H.K. Kwak, B.S. Kim, Ajou University

Comparative Analysis of Sensitivity of Vibration Damage Indicators by theResults of Laboratory Tests, #215 1909

A.P. Bovsunovsky, Institute for Problems of Strength

Formulating Hankel Singular Values of Closely-spaced Modes in Time Domain, #255 1916A.P. Cherng, National I-Lan Institute of Technology

The Higher Precision Curve Fitting to Obtain Modal Parameters, #293 1923G. Liu, Becchis Osiride s.r.l.

46. Rotating Machinery III

Complex Modal Analysis and Modal Superposition for Rotating Machinery, #100 1930CL. Kessler, University of Cincinnati/U.S. Air Force Research Laboratory;J. Kim, University of Cincinnati

Characteristics of the Vold-Kalman Order Tracking Filter, #212 1938H. Herlufsen, S. Gade, H. Konstantin-Hansen, Bruel & Kjaer A/S; H. Void, Void Solution Inc.

A Study on Dynamic Characteristics of Floating and Fixed Pumping Systems, #249 1946M.A. Helal, Mechanical & Electrical Research Institute; M.A. Nasser, Menofia University;S.M. Abdel-Rahman, Mechanical & Electrical Research Institute

Dynamic Analysis and Control of Pumping Stations, #250 1956A.A. Nasser, M.A. Nasser, Menoufia University; E.H.T. El-Shirbeeny,S.M. Abdel-Rahman, Mechanical & Electrical Research Institute

Preliminary Study of Rolling Element Bearing Behavior Under Radial Loading, #280 1968N.S. Chana, Z.F. Reif, R.G.S. Gaspar, University of Windsor

Diagnosis for Rotating Shaft Using Adaptive Modal Parameter Identification Method, #282 1974T. Koizumi, N. Tsujiuchi, T. Sakai, Doshisha University;Y. Matsumura, University of Shiga Prefecture

Damage Detection of Roller Bearing Using Wavelet Transform, #297 1980J. Yang, X. Xiong, S. Xiong, Taiyuan University of Technology

47. System Identification II

Improved Modal Parameter Identification by Non-parametric Modeling of theMeasurement Noise, #21 1984

P. Verboven, P. Guillaume, M. Van Overmeire, Vrije Universiteit Brussel

Effects of Identified Parameter Uncertainty on Structural Damage Detection, #30 1991J.S. Lew, Tennessee State University

Optimization of an Engine Mounting System for Vibro-acoustic Comfort Improvement, #32 1998M. La Civita, A. Sestieri, University of Rome "La Sapienza"

Identification of Ritz Vectors from the Space Shuttle Vertical Stabilizer AssemblyTest Article, #176 2005

T.T. Cao, NASA Johnson Space Center; D.C. Zimmerman,G.H. James III, University of Houston

Assessment of Localized Damage in Beam Structures Using LimitedModal Characteristics, #236 2011

J. Jeon, Hanyang University; E. Choi, Georgia Institute of Technology;H. Kim, Honam University; D. Chang, Hanyang University

Model Updating with Fuzzy Modification Method, #18 2018X. Liu, Beijing University of Posts and Telecommunications

Theory & Modeling and Realizing of Integrated Neural Networks in Fault Diagnosis, #132 2025S. Zhang, H. Yu, Northeastern University

48. Modal Test Methods II

On the Identification of Interface Forces and Motions in Coupled Structures, #279 2031P.S. Varoto, University of Sao Paulo; K.G. McConnell, Iowa State University

Modal Response of Interior Mass Based Upon External Measurements, #148 2038B.R. Jorgensen, T. Woehrle, M. Eli, CT. Chow, Lawrence Livermore National Laboratory

Obtaining a Scaled Modal Model of Panel Type Structures Using Acoustic Exciation, #128 2042J. Deweer, B. Dierckx, LMS International

Comparison Modal Testing Methods of Aircraft, #45 2049M. Sano, K. Komatsu, M. Minegishi, National Aerospace Laboratory Japan

Small Rockets Exiciting Qian-Tang Great Bridge for Modal Analysis, #112 2056H.Q. Ying, J.M. Liu, Q.B. Ao, J.X. Yang, China Orient Institute of Noise Vibration

An Expert System for Seismic Evaluation-ESSE, #246 2061C.C Zhu, Xi'an Jiaotong University; K.C. Zhang, Southwest Institute of StructuralMechanics; J. Zhang, Xi'an Jiaotong University

Addendum(Papers listed in the Addendum are ones which were submitted after the printer's deadline.Therefore, these papers could not be listed under the appropriate session titles).

Use of Operating Deflection and Mode Shapes for Machinery Diagnostics, #351 (Session 32) 2065W.D. Marscher, C.W. Jen, Mechanical Solutions, Inc.

Uncertainty Propagation Using a Stochastic Finite Element Approach, #103 (Session 4) 2072J.R. Red-Horse, Sandia National Laboratories; R. Ghanem, Johns Hopkins University

The Truth Behind Misalignment Vibration Spectra of Rotating Machinery, #349 (Session 32) 2078S. Ganeriwala, S. Patel, H. Hartung, SpectraQuest, Inc.