jeffrey.kissel@LIGO.ORG - posted 10:42, Friday 29 September 2017 - last comment - 21:46, Monday 02 October 2017(38836)
H1 ISI HAM5 Blade (Re)Tuned Mass Damper Results
J. Kissel H1 ISI HAM5's tuned mass dampers have been retuned to match the first bending mode of HAM ISI blade springs post spring-tip-damper install (~139 Hz). Attached are the results for all three TMDs (pg. 1: before and after tuning; pg. 2: after tuning, compared against the blades). The retuned TMDs will be installed at the earliest convenience of Jim and Hugh. Details of the measurement setup are as described in LHO aLOG 38741.
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J. Kissel, for J. Warner H1 ISI HAM5 Corner 2 and 3 TMDs are re-installed. That includes re-installing all walls associated with Corners 2 and 3. The only ISI damping mechanism work that remain on ISI HAM5 are re-installing the TMD for the corner 1 blade, and installing the GS-13 Can Damper on the H3 can. First image is Corner 2's re-installed TMD placement, and Second image is Corner 3's.
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J. Kissel, for S. Cooper and J. Warner Corner 1 TMD was re-installed today, 2017-10-02.
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