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 6 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