Task list

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

Type-A Meeting on 2016/6/21

2016/6/21 13:00 - 14:00 by Skype

Participants: Takahashi, Ishizaki, Sato

Minutes

0-1 Assembly model (Ishizaki)
- Made the test setup.
0-2 Simulation (Okutomi)
- Deadline: The end of June
2-3 Setting of cross chamber (VAC)
- Work: From 8th July, presence on 11th.
3-5 ACC preparation (Sato)
- Make working space in the 20m lab on 27th June.
4-3 Standard filter (Hirata)
- Assembly of FR and measurement: by August for two sets.
4-5 Procurement of magnets (Takahashi)
- Size: 13mm, 72PSC for each
5-1 Manufacturing of blade (Takahashi)
- Cutting: 6 blades by July + 6 blades by Sep.
5-6 Design of damper (Sato)
- Device: The last one was too small, actually about 125mm. Design for vertical as well.
6-1 Design of EQ stop (Ishizaki)
- Modeling: 3D model for the test setup was build.
6-3 Test of prototype
- Frame lock: Delivered by 24th.
- Other parts (rod, adjuster, bolts) will be ordered.
6-4 Design of release sensor (Sato)
- Base: Making in ATC.
- Plate additional machining: Ordered.
- Circuit: LED will be tested.
8-1 Design of dummy payload (Okutomi, Ishizaki)
- Cartoon: Okutomi should send soon!
- Mirror holder: Refer the mirror box for PR.
9-1 Establishment of procedure (Takahashi, Okutomi)
- Test plan: Check FR for 2 BFs.
9-3 Cable assembly
- Number of cables: Ask Tomaru on cryo-payload.

Type-A Meeting on 2016/6/14

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

Participants: Takahashi, Ishizaki, Sato, Okutomi

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: Maximum 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