tbm main beam girder design - indico.cern.ch€¦ · girder section preliminary design •steel...
TRANSCRIPT
![Page 1: TBM main beam girder design - indico.cern.ch€¦ · Girder section preliminary design •Steel •Standard rectangular hollow section •250*150*12mm •100kg/2m •Supported in](https://reader033.vdocuments.site/reader033/viewer/2022060719/607f45c4dead1859c566e07b/html5/thumbnails/1.jpg)
TBM main beam support design
Alex Vamvakas
31/10/18
![Page 2: TBM main beam girder design - indico.cern.ch€¦ · Girder section preliminary design •Steel •Standard rectangular hollow section •250*150*12mm •100kg/2m •Supported in](https://reader033.vdocuments.site/reader033/viewer/2022060719/607f45c4dead1859c566e07b/html5/thumbnails/2.jpg)
Considerations
• Independent girders
• Lower cost
• Easy to assemble and install
• Integrated features
![Page 3: TBM main beam girder design - indico.cern.ch€¦ · Girder section preliminary design •Steel •Standard rectangular hollow section •250*150*12mm •100kg/2m •Supported in](https://reader033.vdocuments.site/reader033/viewer/2022060719/607f45c4dead1859c566e07b/html5/thumbnails/3.jpg)
Girder section preliminary design
• Steel
• Standard rectangular hollow section
• 250*150*12mm
• 100kg/2m
• Supported in • 2 points – Gaussian points
• 3 points – extremities and middle
250 mm
150 mm
12 mm
![Page 4: TBM main beam girder design - indico.cern.ch€¦ · Girder section preliminary design •Steel •Standard rectangular hollow section •250*150*12mm •100kg/2m •Supported in](https://reader033.vdocuments.site/reader033/viewer/2022060719/607f45c4dead1859c566e07b/html5/thumbnails/4.jpg)
3 points suport
• 3 vertical support points• Minimizing sag
• Combination of movement allows for roll and pitch control
• 2 transversal points• Close to the extremities to maximize
resolution
• 1 longitudinal point• In the middle
• Active or not
Degrees of freedom
![Page 5: TBM main beam girder design - indico.cern.ch€¦ · Girder section preliminary design •Steel •Standard rectangular hollow section •250*150*12mm •100kg/2m •Supported in](https://reader033.vdocuments.site/reader033/viewer/2022060719/607f45c4dead1859c566e07b/html5/thumbnails/5.jpg)
2 point support
• 27um max sag
• Eigen frequencies:• 134.71
• 182.73
• 300.03
• 320.13
• 435.15
• 511.12
![Page 6: TBM main beam girder design - indico.cern.ch€¦ · Girder section preliminary design •Steel •Standard rectangular hollow section •250*150*12mm •100kg/2m •Supported in](https://reader033.vdocuments.site/reader033/viewer/2022060719/607f45c4dead1859c566e07b/html5/thumbnails/6.jpg)
3 point support
• 5um max sag
• Eigen frequencies:• 199.14
• 300.85
• 477.83
• 495.92
• 523.5
• 555.42
![Page 7: TBM main beam girder design - indico.cern.ch€¦ · Girder section preliminary design •Steel •Standard rectangular hollow section •250*150*12mm •100kg/2m •Supported in](https://reader033.vdocuments.site/reader033/viewer/2022060719/607f45c4dead1859c566e07b/html5/thumbnails/7.jpg)
K-module
• New girder and actuators
• Adjustable support for every SAS
• Spiral loads
• New compact loads for RF network
Courtesy Y. Cuvet
![Page 8: TBM main beam girder design - indico.cern.ch€¦ · Girder section preliminary design •Steel •Standard rectangular hollow section •250*150*12mm •100kg/2m •Supported in](https://reader033.vdocuments.site/reader033/viewer/2022060719/607f45c4dead1859c566e07b/html5/thumbnails/8.jpg)
Integrated movers
• Movers are integrated on the girder
• Flexure based joints
• WPS are attached directly on the girder
• WPS need to open diagonally or supported slightly differently
Vertical DoF
Horizontal DoF
![Page 9: TBM main beam girder design - indico.cern.ch€¦ · Girder section preliminary design •Steel •Standard rectangular hollow section •250*150*12mm •100kg/2m •Supported in](https://reader033.vdocuments.site/reader033/viewer/2022060719/607f45c4dead1859c566e07b/html5/thumbnails/9.jpg)
Vertical installation
• Movers are assembled on the girder beforehand
• Minimizing work in the tunnel
• One single connection for electronics
• One single connection for cooling
Top plate remains attached on the girder
Wires are not disturbed
Ground plate
![Page 10: TBM main beam girder design - indico.cern.ch€¦ · Girder section preliminary design •Steel •Standard rectangular hollow section •250*150*12mm •100kg/2m •Supported in](https://reader033.vdocuments.site/reader033/viewer/2022060719/607f45c4dead1859c566e07b/html5/thumbnails/10.jpg)
SAS adjustable support
• 6 DoF support based on flexures and wedges
Courtesy J. Vainola
![Page 11: TBM main beam girder design - indico.cern.ch€¦ · Girder section preliminary design •Steel •Standard rectangular hollow section •250*150*12mm •100kg/2m •Supported in](https://reader033.vdocuments.site/reader033/viewer/2022060719/607f45c4dead1859c566e07b/html5/thumbnails/11.jpg)
2 beam module
• Support system is identical
• Adjustable supports on DBQs
• PETS are fixed
• New components are introduced here as well
![Page 12: TBM main beam girder design - indico.cern.ch€¦ · Girder section preliminary design •Steel •Standard rectangular hollow section •250*150*12mm •100kg/2m •Supported in](https://reader033.vdocuments.site/reader033/viewer/2022060719/607f45c4dead1859c566e07b/html5/thumbnails/12.jpg)
2 beam module
• Height reduced to 1m from 1.2m
• Waveguides need further layout optimization
![Page 13: TBM main beam girder design - indico.cern.ch€¦ · Girder section preliminary design •Steel •Standard rectangular hollow section •250*150*12mm •100kg/2m •Supported in](https://reader033.vdocuments.site/reader033/viewer/2022060719/607f45c4dead1859c566e07b/html5/thumbnails/13.jpg)
Common RF
![Page 14: TBM main beam girder design - indico.cern.ch€¦ · Girder section preliminary design •Steel •Standard rectangular hollow section •250*150*12mm •100kg/2m •Supported in](https://reader033.vdocuments.site/reader033/viewer/2022060719/607f45c4dead1859c566e07b/html5/thumbnails/14.jpg)
Common RF girder
• RF unit with pre-assembled SAS, PETS, girder and actuators
• 3 supporting points
• DBQ on active support
• DBQ is supported on the same plate
![Page 15: TBM main beam girder design - indico.cern.ch€¦ · Girder section preliminary design •Steel •Standard rectangular hollow section •250*150*12mm •100kg/2m •Supported in](https://reader033.vdocuments.site/reader033/viewer/2022060719/607f45c4dead1859c566e07b/html5/thumbnails/15.jpg)
Common RF girder
• WPS directly on the girder, close to the beam line
• Whole assembly removed vertically