Differences between revisions 2 and 3
⇤ ← Revision 2 as of 2009-08-03 01:28:22 →
Size: 762
Editor: RanaAdhikari
Comment:
← Revision 3 as of 2009-08-03 03:01:20 → ⇥
Size: 851
Editor: RanaAdhikari
Comment:
Deletions are marked like this. Additions are marked like this.
Line 9: Line 9:
=== Eigenmodes ===
 1. Remove gravity
 1. No constraints (as if there's no wire)
 [[/EigenmodePlots]]

We have done some analysis of the Reference Cavity using COMSOL. We got the design parameters for the reference cavity from ???

Basic Model Parameters

  • T = 273 + 38 K (reference cavity can is kept at 38 C)

  • Spacer and mirrors made of Corning Fused Silica (7940) - in reality its probably 7980?

  • Uses: Structural Mechanics module, Heat Transfer module, & Materials Library

Eigenmodes

  1. Remove gravity
  2. No constraints (as if there's no wire)

    /EigenmodePlots

Vertical Sensitivity

  1. Constrain the grooves on the bottom in all 3 DOF.
  2. Add a load force on the spacer. F/V = -9.81 * 2200 (comsol likes a force/volume)

Deformation of the cylinder shows the actual shape. Color indicates displacement along the cavity axis. attachment:refcav1.png attachment:refcav1-zoom.png attachment:refcav1-zoom2.png

Reference_Cavity/FEA (last edited 2012-01-03 23:02:45 by localhost)