no slide title parametric supercritical airfoil family & performance estimates • supercritical...
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Computational Research and Engineering for Acquisition Tools and Environments
0110 01010 1100100 010111001 Approved for public release; case number 88ABW-2012-5572, on 18 Oct 12.
CREATE-AV DaVinci NDIA Brief 07Nov2012 Page-1
Gregory L. Roth – DaVinci Principal Developer Wright-Patterson AFB, AFLCMC/XZE [email protected] (937) 904-5872 http://create.hpcmo.hpc.mil
CREATE-AV DaVinci Informed Systems Engineering Decision Making for DoD Acquisition
07 November 2012 NDIA – Physics Based Modeling
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.
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Computational Research and Engineering for Acquisition Tools and Environments
0110 01010 1100100 010111001 Approved for public release; case number 88ABW-2012-5572, on 18 Oct 12.
CREATE-AV DaVinci NDIA Brief 07Nov2012 Page-2
• DaVinci Vision/Business Model
• DoD Acquisition Problems Impacted
• DaVinci 2.0/3.0 Capabilities
• DaVinci Roadmap
• Recent Examples and Prototypes
• Conclusion
Outline
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Computational Research and Engineering for Acquisition Tools and Environments
0110 01010 1100100 010111001 Approved for public release; case number 88ABW-2012-5572, on 18 Oct 12.
CREATE-AV DaVinci NDIA Brief 07Nov2012 Page-3
DaVinci Vision
DaVinci enables model-based engineering and informed decision making with high performance computing
• Evaluate benefit of new or innovative technologies • Assess impacts of requirements on vehicle
capability End Goal State
Release 1.0 2.0 3.0
• Bring state-of-the-art multi-disciplinary, multi-fidelity, coupled physics, model-based engineering (MBE) tools to common engineers
• Provide a seamless, extensible, flexible, systems engineering infrastructure spanning the full aerospace system lifecycle from requirements generation through sustainment
• Generate high quality, mesh-able geometry for CFD/CSM tools • Explore, optimize, and understand the system trade-space and tradeoffs in support of
decision making at all levels • Enable effective conceptual studies, uncertainty
quantification, and sensitivity analysis • Enhance cooperation across geographically
distributed teams • Enhance aerospace systems requirements
definition and KPPs
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Computational Research and Engineering for Acquisition Tools and Environments
0110 01010 1100100 010111001 Approved for public release; case number 88ABW-2012-5572, on 18 Oct 12.
CREATE-AV DaVinci NDIA Brief 07Nov2012 Page-4
DaVinci Business Model
• Seamless integration of HPC resources and network cloud computing into engineers' models
• Unified system modeling - a system model centric approach
• Standards based Systems Engineering Architecture: o FOUO, proprietary, & ITAR knowledge reside in the components and
services which are restricted and controlled o Portable parametric components & services
• Built in core systems engineering functionality
• Development, refactoring, & wrapping of aerospace design and analysis components & services
DaVinci eases engineering burden of using HPC
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Computational Research and Engineering for Acquisition Tools and Environments
0110 01010 1100100 010111001 Approved for public release; case number 88ABW-2012-5572, on 18 Oct 12.
CREATE-AV DaVinci NDIA Brief 07Nov2012 Page-5
Differing Acquisition Entry Points
User Needs
Technology Opportunities & Resources
JROCGap
Ana
lysi
s
ICD
Joint Operating ConceptsJoint Functional Concepts
DoDStrategic Guidance
IOCBA
Technology Development
Engineering and Manufacturing
Development & Demonstration
Production & Deployment
Systems Acquisition
Operations & Support
C
Sustainment
FRP DecisionReview
FOC
LRIP/IOT&EPost-CDRAssessment
Pre-Systems Acquisition
(ProgramInitiation)
MaterielSolutionAnalysis
Materiel Development Decision
= Decision Point = Milestone Review
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Computational Research and Engineering for Acquisition Tools and Environments
0110 01010 1100100 010111001 Approved for public release; case number 88ABW-2012-5572, on 18 Oct 12.
CREATE-AV DaVinci NDIA Brief 07Nov2012 Page-6
DaVinci Principal Focus
DaVinci Focus
DaVinci focuses on early acquisition where payoff is the highest while supporting the full acquisition lifecycle
DaVinci Architecture needs to span the full life cycle
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Computational Research and Engineering for Acquisition Tools and Environments
0110 01010 1100100 010111001 Approved for public release; case number 88ABW-2012-5572, on 18 Oct 12.
CREATE-AV DaVinci NDIA Brief 07Nov2012 Page-7
DaVinci Impacts
User Needs
Technology Opportunities & Resources
JROCGap
Ana
lysi
s
ICD
Joint Operating ConceptsJoint Functional Concepts
DoDStrategic Guidance
IOCBA
Technology Development
Engineering and Manufacturing
Development & Demonstration
Production & Deployment
Systems Acquisition
Operations & Support
C
Sustainment
FRP DecisionReview
FOC
LRIP/IOT&EPost-CDRAssessment
Pre-Systems Acquisition
(ProgramInitiation)
MaterielSolutionAnalysis
Materiel Development Decision
= Decision Point = Milestone Review
Requirements Determination Pre-JCIDS through MS-B, DaVinci helps the user:
• Understand the DOTMLPF trade-offs • Set necessary concepts of operations • Ensure a quick and preferred materiel solution
Analysis of Alternatives Given a materiel solution, DaVinci allows stakeholders to:
• Quickly understand trade-offs • Compare types and classes of system solutions
![Page 8: No Slide Title Parametric Supercritical Airfoil Family & Performance Estimates • Supercritical airfoil family – Thin airfoil theory gives max cl limit (t/c = 0), ‘point design’](https://reader035.vdocuments.site/reader035/viewer/2022062600/5ac15cd07f8b9a357e8c9691/html5/thumbnails/8.jpg)
Computational Research and Engineering for Acquisition Tools and Environments
0110 01010 1100100 010111001 Approved for public release; case number 88ABW-2012-5572, on 18 Oct 12.
CREATE-AV DaVinci NDIA Brief 07Nov2012 Page-8
DaVinci Impacts, cont.
User Needs
Technology Opportunities & Resources
JROCGap
Ana
lysi
s
ICD
Joint Operating ConceptsJoint Functional Concepts
DoDStrategic Guidance
IOCBA
Technology Development
Engineering and Manufacturing
Development & Demonstration
Production & Deployment
Systems Acquisition
Operations & Support
C
Sustainment
FRP DecisionReview
FOC
LRIP/IOT&EPost-CDRAssessment
Pre-Systems Acquisition
(ProgramInitiation)
MaterielSolutionAnalysis
Materiel Development Decision
= Decision Point = Milestone Review
Systems Design & Trade Studies For pre MS-A design efforts, DaVinci enables:
• Model persistence through a unified systems model • Seamless transition through various fidelity levels • Better understanding of the trade space • Reduced user subject matter expertise requirements
Decision Making DaVinci supports and improves intelligent decision making by:
• Giving users the right information at the right time • Building confidence levels to enable fully informed decisions
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Computational Research and Engineering for Acquisition Tools and Environments
0110 01010 1100100 010111001 Approved for public release; case number 88ABW-2012-5572, on 18 Oct 12.
CREATE-AV DaVinci NDIA Brief 07Nov2012 Page-9
DaVinci 2.0
DaVinci 2.0 enables:
• Parametric execution of a unified system model to support design space exploration
• Uncertainty quantification and sensitivity analysis to better understand the design space
• Internal component layout to locate and size major internal components for volume and point mass distributions
• Initial conceptual design capability with system performance (Breguet based) calculations based on low-fidelity aerodynamic (AVL), structural (mass properties), stability & control, and propulsion (engine decks) models
available Q1 CY2013
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Computational Research and Engineering for Acquisition Tools and Environments
0110 01010 1100100 010111001 Approved for public release; case number 88ABW-2012-5572, on 18 Oct 12.
CREATE-AV DaVinci NDIA Brief 07Nov2012 Page-10
DaVinci 3.0 enables:
• Unified system model sharing between agents using multi-level security model for access control and information assurance
• Decision support with uncertainty quantification and sensitivity analysis to fully understand design space characteristics
• Internal component layout to locate and size internal components for volume and mass distributions
• Multi-fidelity system performance calculations and correlations with aerodynamic, structural, stability & control, and propulsion models
DaVinci 3.0
available Q4 CY2013
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Computational Research and Engineering for Acquisition Tools and Environments
0110 01010 1100100 010111001 Approved for public release; case number 88ABW-2012-5572, on 18 Oct 12.
CREATE-AV DaVinci NDIA Brief 07Nov2012 Page-11
DaVinci Product Roadmap
Operations and Support
Technology Development Engineering Development Product Deployment
Solutions Analysis
A B C D?
1) Build associative engineering models of fixed and rotary wing aircraft from pre-engineered components resulting in meshable, NURBS-based surface geometry.
2) Systems engineering Integrated Development Environment (SIDE) for engineering model building, sensitivity analysis and uncertainty quantification, complete air vehicle design, seamless transition from conceptual design to preliminary/detailed level analysis (e.g., Kestrel and Helios).
3) Enhanced user functionality to rapidly develop new components, modify existing models, define internal structure and subsystem layout, and perform trade space exploration; capability additions include component visualizers and editors, simple GUI builders, built-in user feedback, multi-level security, and training material.
4) Next generation pre-engineered components including more detailed control surfaces, more user control of cross-sectional shapes, and improved surface intersections & fillets. Other enhanced capabilities include multi-fidelity model correlation, model persistence and information extraction, and wrappers for legacy C/C++ and Fortran codes for use in DaVinci.
Red text indicates current focus areas for DaVinci 2010 2012 2014 2016 2018 2020
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Computational Research and Engineering for Acquisition Tools and Environments
0110 01010 1100100 010111001 Approved for public release; case number 88ABW-2012-5572, on 18 Oct 12.
CREATE-AV DaVinci NDIA Brief 07Nov2012 Page-12
DaVinci End State
Sustained DaVinci product capability • Unified life-cycle systems engineering modeling environment • Advanced, multi-fidelity conceptual design and analysis • Fully parameterized, high quality, mesh-able geometry for CFD & CSM • Rapid development iterations for:
- Requirements traceability - Detailed physics-based systems representations - High-fidelity models suitable for early preliminary design
• Fully integrated with other CREATE products for preliminary/detailed level analysis - CREATE-MG Capstone for geometry generation and meshing - CREATE-AV Kestrel/Firebolt for fixed wing analysis - CREATE-AV Helios/Firebolt for rotary wing analysis - CREATE-RF SENTRI for avionics design and analysis
• Adopted by, used, and extended by large Government, Industrial, and Academic communities
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Computational Research and Engineering for Acquisition Tools and Environments
0110 01010 1100100 010111001 Approved for public release; case number 88ABW-2012-5572, on 18 Oct 12.
CREATE-AV DaVinci NDIA Brief 07Nov2012 Page-13
DaVinci Geometry
Use of the geometry viewer within DaVinci provides a visual model of the system to the user
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Computational Research and Engineering for Acquisition Tools and Environments
0110 01010 1100100 010111001 Approved for public release; case number 88ABW-2012-5572, on 18 Oct 12.
CREATE-AV DaVinci NDIA Brief 07Nov2012 Page-14
DaVinci Sub-Systems
Use of the graphical model within DaVinci allows the user to easily see sub-system parts and interactions between those parts
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Computational Research and Engineering for Acquisition Tools and Environments
0110 01010 1100100 010111001 Approved for public release; case number 88ABW-2012-5572, on 18 Oct 12.
CREATE-AV DaVinci NDIA Brief 07Nov2012 Page-15
DaVinci Extensibility
Use of the scripting engine within DaVinci allows the user to infinitely extend DaVinci capability for any systems problem
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Computational Research and Engineering for Acquisition Tools and Environments
0110 01010 1100100 010111001 Approved for public release; case number 88ABW-2012-5572, on 18 Oct 12.
CREATE-AV DaVinci NDIA Brief 07Nov2012 Page-16
Kestrel use by DaVinci 1. Create water tight OML geometry in DaVinci 2. Pass OML geometry to Capstone for grid generation 3. Pass grid to Kestrel for static & dynamic analyses
• Static rigid aircraft • Rigid single body prescribed motion
4. Pass Kestrel analyses in coefficient, force, moment form to DaVinci 5. Integrate Kestrel results for use in DaVinci
Kestrel Integration
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Computational Research and Engineering for Acquisition Tools and Environments
0110 01010 1100100 010111001 Approved for public release; case number 88ABW-2012-5572, on 18 Oct 12.
CREATE-AV DaVinci NDIA Brief 07Nov2012 Page-17
Engine & Inlet Placement
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Computational Research and Engineering for Acquisition Tools and Environments
0110 01010 1100100 010111001 Approved for public release; case number 88ABW-2012-5572, on 18 Oct 12.
CREATE-AV DaVinci NDIA Brief 07Nov2012 Page-18
Flying Wing (Cargo View)
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Computational Research and Engineering for Acquisition Tools and Environments
0110 01010 1100100 010111001 Approved for public release; case number 88ABW-2012-5572, on 18 Oct 12.
CREATE-AV DaVinci NDIA Brief 07Nov2012 Page-19
DaVinci Parametric Supercritical Airfoil Family & Performance Estimates
• Supercritical airfoil family – Thin airfoil theory gives max cl
limit (t/c = 0), ‘point design’ – NASA SC(2) symmetric airfoils
give max thickness limit (cl = 0) – DaVinci family of supercritical
airfoils span the design space
0.7
0.75
0.8
0.85
0.9
0.95
1
0 0.05 0.1 0.15 0.2
Crit
ical
Mac
h
Thickness to chord ratio
cl = 0 cl = 0.8
-0.15
-0.1
-0.05
0
0.05
0.1
0.15
0 0.2 0.4 0.6 0.8 1
DaVinci (Cl = 0.4) Control Pts NASA SC(2)-0410
DaVinci supercritical airfoil family developed under pilot project
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Computational Research and Engineering for Acquisition Tools and Environments
0110 01010 1100100 010111001 Approved for public release; case number 88ABW-2012-5572, on 18 Oct 12.
CREATE-AV DaVinci NDIA Brief 07Nov2012 Page-20
-0.16
-0.12
-0.08
-0.04
0
-2 0 2 4
Pitching Moment
Kestrel Airfoil High-Speed Validation
0
0.2
0.4
0.6
0.8
1
0 1 2 3 4 AoA
Kestrel Experiment
0 0.002 0.004 0.006 0.008
0.01 0.012 0.014 0.016
-2 0 2 4 AoA
Kestrel Experiment
Lift
Drag
NASA Supercritical Airfoil 26a, Mach 0.68, Re=7.e+6
Excellent agreement between Kestrel & Experiment
-1.0 -0.6 -0.2 0.2 0.6 1.0
0 0.2 0.4 0.6 0.8 1 X/C
Kestrel Experiment
Pressure
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Computational Research and Engineering for Acquisition Tools and Environments
0110 01010 1100100 010111001 Approved for public release; case number 88ABW-2012-5572, on 18 Oct 12.
CREATE-AV DaVinci NDIA Brief 07Nov2012 Page-21
In-house, CREATE, & Academic Codes were Employed
Airfoil, Wing, Center-Body Design
Estimation of Cruise Mach
Optimal ‘Elliptic’ Span Loading at Cruise
Center-body ‘Carving’ Trims Vehicle in Pitch
• Aerodynamic performance – Explored trimmed aero
performance • Planform, and airfoil effects • Center-body shaping for trim &
efficient cruise
Mach 0.75 Sonic line
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Computational Research and Engineering for Acquisition Tools and Environments
0110 01010 1100100 010111001 Approved for public release; case number 88ABW-2012-5572, on 18 Oct 12.
CREATE-AV DaVinci NDIA Brief 07Nov2012 Page-22
Drag Brake (Yaw)
Drag Brake (Yaw), Aileron, & Elevator
Elevator
Single Engine Out
• Adequate yaw control with drag brakes • Drag penalty needs further study
0
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0 10 20 30 40 50
Yaw
Mom
ent C
oeffi
cien
t
Deflection angle (deg.)
Drag Brake
Engine
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Computational Research and Engineering for Acquisition Tools and Environments
0110 01010 1100100 010111001 Approved for public release; case number 88ABW-2012-5572, on 18 Oct 12.
CREATE-AV DaVinci NDIA Brief 07Nov2012 Page-23
SA/UQ Motivation
Responsible engineering modeling and credible systems simulation
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Computational Research and Engineering for Acquisition Tools and Environments
0110 01010 1100100 010111001 Approved for public release; case number 88ABW-2012-5572, on 18 Oct 12.
CREATE-AV DaVinci NDIA Brief 07Nov2012 Page-24
40%
50%
60%
70%
80%
90%
100%
40% 50% 60% 70% 80% 90% 100%Cu
mul
ativ
e Pr
obab
ility
of D
etec
tion
, Pdc
Confidence Interval
Cumulative Probability of Detection Margin of Error
• Original set of inputs gives a cumulative probability of detection, Pdc, estimate 34.0% high compared to the population mean (red line)
• Using the mean values of all the inputs results in a Pdc estimate 8.5% high compared to the population mean (blue line)
• For a 95% confidence interval, using the mean values of all the inputs still gives an estimate of Pdc 12.5% high
Radar Model Example
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Computational Research and Engineering for Acquisition Tools and Environments
0110 01010 1100100 010111001 Approved for public release; case number 88ABW-2012-5572, on 18 Oct 12.
CREATE-AV DaVinci NDIA Brief 07Nov2012 Page-25
Radar Observations
• Calculations based on a single application of the engineering models may give favorable, but unlikely results, Pdc = 93.7%
• Sensitivity analysis can highlight the input parameters that drive system performance
• Uncertainty quantification can help establish greater understanding of both the system being modeled as well as the quality and appropriateness of the model
• Model choice and approximating functions (use of the complementary error function in the radar example) can greatly impact results and give misleading information
• 95% confidence interval cumulative probability of detection, Pdc = 67.5% based on distributions with a mean Pdc = 75.9%
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Computational Research and Engineering for Acquisition Tools and Environments
0110 01010 1100100 010111001 Approved for public release; case number 88ABW-2012-5572, on 18 Oct 12.
CREATE-AV DaVinci NDIA Brief 07Nov2012 Page-26
Engineered Resilient Systems
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Computational Research and Engineering for Acquisition Tools and Environments
0110 01010 1100100 010111001 Approved for public release; case number 88ABW-2012-5572, on 18 Oct 12.
CREATE-AV DaVinci NDIA Brief 07Nov2012 Page-27
Specifying requirements and building models: • DaVinci concept built from inputs from Government, Industry, and Academia • Initial focus of DaVinci software suite on DoD acquisition • Opportunities for companies with Government contract(s) to request CREATE
tools with Government need justification • Component library model (pre-engineered parts) development open to
DaVinci users • Models with re-use and/or sharing potential can be submitted to DaVinci Team
for consideration to be distributed with future DaVinci releases
Using DaVinci for system studies: • Initial capability for generating CFD mesh-able outer mold lines ready • Simple air vehicle performance models can be used now • Uncertainty quantification/sensitivity analysis to support decision making available • Some discussion for future CREATE use in RFP responses and source selection • DaVinci is infinitely extensible for any engineering problem
Opportunities for Engagement
http://create.hpcmo.hpc.mil
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Computational Research and Engineering for Acquisition Tools and Environments
0110 01010 1100100 010111001 Approved for public release; case number 88ABW-2012-5572, on 18 Oct 12.
CREATE-AV DaVinci NDIA Brief 07Nov2012 Page-28
DaVinci Summary
• Must enable the use of HPC in early phase DoD acquisition by providing multi-disciplinary, multi-fidelity, computationally based systems engineering design tool sets
• Must rapidly produce high quality parametric associative mesh-able geometry & system models for design space exploration to support decision making
• Must enable model propagation to preliminary/ detailed design (Kestrel and Helios for example)
• Must enable user uncertainty quantification and sensitivity analysis to support confidence in decision making process
![Page 29: No Slide Title Parametric Supercritical Airfoil Family & Performance Estimates • Supercritical airfoil family – Thin airfoil theory gives max cl limit (t/c = 0), ‘point design’](https://reader035.vdocuments.site/reader035/viewer/2022062600/5ac15cd07f8b9a357e8c9691/html5/thumbnails/29.jpg)
Computational Research and Engineering for Acquisition Tools and Environments
0110 01010 1100100 010111001 Approved for public release; case number 88ABW-2012-5572, on 18 Oct 12.
CREATE-AV DaVinci NDIA Brief 07Nov2012 Page-29
release Q1 CY2013
Physics-based engineering for rapid design
http://create.hpcmo.hpc.mil
CREATE DaVinci 2.0
![Page 30: No Slide Title Parametric Supercritical Airfoil Family & Performance Estimates • Supercritical airfoil family – Thin airfoil theory gives max cl limit (t/c = 0), ‘point design’](https://reader035.vdocuments.site/reader035/viewer/2022062600/5ac15cd07f8b9a357e8c9691/html5/thumbnails/30.jpg)
Computational Research and Engineering for Acquisition Tools and Environments
0110 01010 1100100 010111001 Approved for public release; case number 88ABW-2012-5572, on 18 Oct 12.
CREATE-AV DaVinci NDIA Brief 07Nov2012 Page-30