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== Task list ==
[[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=4792]]
<<TableOfContents(3)>>
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= Minutes of the Type-A Meeting on 2016/6/14 =
2016/6/14 13:00 - 15:00 @ Room 210
= Design =
  . [[TypeAdesign|{{attachment:figTypeAsasNamed.png||width=25%,align="right"}}]]
== Mechanical Components ==
 * Pre-Isolator (PI)
  * Inverted pendulum (IP)
  * Top filter (TF)
 * Magnetic damper (MD)
 * Standard filter (SF)
 * Bottom filter (BF)
 * Cryopayload (CRYp)
  * Platform (PF)
  * Marionette (MN)
  * Marionette recoil mass (MNR)
  * Intermediate mass (IM)
  * Intermediate recoil mass (IRM)
  * Optics (OP, test mass, TM)
  * Recoil mass (RM)
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Participants: Takahashi, Ishizaki, Sato, Okutomi == Drawings ==
 * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5633|Pre-Isolator]]
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=== 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.
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=== Next meeting ===
2016/6/21 13:00

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

= Meeting =

 * Type-A team meeting [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/VIS/TypeA/Meeting|Minutes]]

Design

  • TypeAdesign

Mechanical Components

  • Pre-Isolator (PI)
    • Inverted pendulum (IP)
    • Top filter (TF)
  • Magnetic damper (MD)
  • Standard filter (SF)
  • Bottom filter (BF)
  • Cryopayload (CRYp)
    • Platform (PF)
    • Marionette (MN)
    • Marionette recoil mass (MNR)
    • Intermediate mass (IM)
    • Intermediate recoil mass (IRM)
    • Optics (OP, test mass, TM)
    • Recoil mass (RM)

Drawings


Schedule

Task list

Meeting

KAGRA/Subgroups/VIS/TypeA (last edited 2021-11-02 17:29:27 by naohisa.sato)