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40m Log |
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Wed May 12 14:23:20 2021, Jordan, Update, SUS, Mass Properties of SOS Assembly with 3"->2" Optic sleeve, in SI units
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Wed May 12 16:53:59 2021, Koji, Update, SUS, Mass Properties of SOS Assembly with 3"->2" Optic sleeve, in SI units
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Wed May 12 17:06:52 2021, Jordan, Update, SUS, Mass Properties of SOS Assembly with 3"->2" Optic sleeve, in SI units
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Wed May 19 18:29:41 2021, Koji, Update, SUS, Mass Properties of SOS Assembly with 3"->2" Optic sleeve, in SI units 
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Message ID: 16146
Entry time: Wed May 19 18:29:41 2021
In reply to: 16137
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Author: |
Koji |
Type: |
Update |
Category: |
SUS |
Subject: |
Mass Properties of SOS Assembly with 3"->2" Optic sleeve, in SI units |
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Calculation for the SOS POS/PIT/YAW resonant frequencies
- Nominal height gap between the CoM and the wire clamping point is 0.9mm (cf T970135)
- To have the similar res freq for the optic with the 3" metal sleeve is 1.0~1.1mm.
As the previous elog does not specify this number for the current configuration, we need to asses this value and the make the adjustment of the CoM height. |
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