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Stave 130 Drawings Summary of major dimensions, with a comment about dimensioning datums and ANSYS layered elements. PS RAL – WP4 Meeting 2 May 2013. Stave Dimensions. Critical Dimensions: Overall Length 1277

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Stave 130 DrawingsSummary of major dimensions, with a comment about dimensioning datums and ANSYS layered elements.

PS

RAL – WP4 Meeting

2 May 2013

stave dimensions
Stave Dimensions

Critical Dimensions:

  • Overall Length 1277
  • Width 120 (likely to change, hopefully narrower, due to modifications with hybrid)
  • SMC area 100 x 50
  • EOS at Z=0 to Silicon Edge 0.1mm
  • Start of Silicon from Z=1277.1 = 3.36
  • Module to Module Gap 0.46mm
  • Pitch of Modules 98mm
stave thicknesses
Stave thicknesses
  • Wirebond to Wirebond 7.88
  • ASIC to ASIC 6.18
stereo side
Stereo Side
  • Pitch of Modules 98mm
  • EOS at Z=0 to Silicon Edge 0.102mm
  • Module to Module Gap 0.3817

All dimensions theoretical to show difference!

z 0 gaps
dimensioning datums
Dimensioning Datums

NOTE: The tape is not to be used as a datum.

The tape will be positioned to a nominal accuracy in order for the wire bond pad to be ‘within tolerance’

Laser drilled hole in Z=0 locator foil.

thoughts about ansys carbon fibre modelling
Thoughts about ANSYS carbon fibre modelling
  • ANSYS 14 has stopped ‘supporting’ certain elements.
  • There are 2 elements which can be used for layered analysis
    • SHELL181
    • SOLID185
  • ANSYS has a ‘Section’ menu, one of which is Shell, where you can construct a layup. This menu seems to work for solid as well as shell elements.
  • It seems the layup can only be associated with 1 coordinate system.