Differences between revisions 1 and 7 (spanning 6 versions)

Minutes of the Type-A Meeting on 2016/6/14

2016/6/14 13:00 - 15:00 @ Room 210

Participants: Takahashi, Ishizaki, Sato, Okutomi

Task list

http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=4792

Minutes

0-1 Assembly model (Ishizaki)
- Step: From EQ stop, next with chamber.
0-2 Simulation (Okutomi)
- Problem: Conversion to Simulink was ok. The structure of control has a problem in Matlab. Reconstructing now.
3-5 ACC preparation (Sato)
- Space: Make working space in the 20m lab.
5-1 Manufacturing of blade (Takahashi)
- Design: 5 blades are used for 200kg load.
5-6 Design of damper (Sato)
- Device: Asking design of LVDT-Act. to VIRGO. The device is located at the center of mass.
6-1 Design of EQ stop (Ishizaki)
- Structure analysis: Two cases were calculated. Share stress was 1/6 of limit, and principal stress was 1/7 of limit respectively in the maximum case.
- Modeling: Making with consideration of procedure and tools.
- Frame lock: Max. stress was 160MPa with thickness of 30mm (limit 180MPa).
6-4 Design of release sensor (Sato)
- Position: Inner side of the stage. Need to addtional machining to the EQ stop plate.
- Electronics: Circuit is simple in the test (handmade).
8-1 Design of dummy payload (Okutomi, Ishizaki)
- Condition: 25cm mirror, alignment by moving mass. Make a cartoon.
- Actuation: Length control is necessary? Check PZT actuator.
9-1 Establishment of procedure (Takahashi, Okutomi)
- Test plan: Prepare for 2 sets of release sensors. Check FR for 2 BFs.

Next meeting

2016/6/21 13:00

-  ⇤ ← Revision 1 as of 2015-07-29 17:49:05 → 
  Size: 41
  Editor: AyakaShoda
  Comment:
+   ← Revision 7 as of 2016-06-15 17:53:07 → ⇥
  Size: 1642
  Editor: RyutaroTakahashi
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 1:
-This is the page for Type-A suspension.
+= Minutes of the Type-A Meeting on 2016/6/14 =
2016/6/14 13:00 - 15:00 @ Room 210

Participants: Takahashi, Ishizaki, Sato, Okutomi

== Task list ==
[[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=4792]]

=== Minutes ===
 0-1 Assembly model (Ishizaki)
  * Step: From EQ stop, next with chamber.
 0-2 Simulation (Okutomi)
  * Problem: Conversion to Simulink was ok. The structure of control has a problem in Matlab. Reconstructing now.
 3-5 ACC preparation (Sato)
  * Space: Make working space in the 20m lab.
 5-1 Manufacturing of blade (Takahashi)
  * Design: 5 blades are used for 200kg load.
 5-6 Design of damper (Sato)
  * Device: Asking design of LVDT-Act. to VIRGO. The device is located at the center of mass.
 6-1 Design of EQ stop (Ishizaki)
  * Structure analysis: Two cases were calculated. Share stress was 1/6 of limit, and principal stress was 1/7 of limit respectively in the maximum case.
  * Modeling: Making with consideration of procedure and tools.
  * Frame lock: Max. stress was 160MPa with thickness of 30mm (limit 180MPa).
 6-4 Design of release sensor (Sato)
  * Position: Inner side of the stage. Need to addtional machining to the EQ stop plate.
  * Electronics: Circuit is simple in the test (handmade).
 8-1 Design of dummy payload (Okutomi, Ishizaki)
  * Condition: 25cm mirror, alignment by moving mass. Make a cartoon.
  * Actuation: Length control is necessary? Check PZT actuator.
 9-1 Establishment of procedure (Takahashi, Okutomi)
  * Test plan: Prepare for 2 sets of release sensors. Check FR for 2 BFs.

=== Next meeting ===
2016/6/21 13:00