LIGO Document T1300876-v4

Violin Mode Frequency/Q Summary as predicted by Models

Document #:
LIGO-T1300876-v4
Document type:
T - Technical notes
Other Versions:
Abstract:
The theory of violin modes and a table of expected values for all suspension types.
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Keywords:
SUS suspensions violin
Notes and Changes:
-v3: fix equation numbering and (new) Eq 1.11 (r should have been d)

3/7/2015 note from Dennis Coyne: The quad fiber violin frequencies in section 3.1 are incorrect (by a factor of ~2) because the fiber radius is assumed to be 0.4 mm, whereas this is the diameter (over most of the fiber length).

-v4: Fix issue with fibre modes noted by Dennis by upgrading from model 20120601TMproductionTM to 20140304TMproductionTM.

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