Differences between revisions 77 and 251 (spanning 174 versions)
⇤ ← Revision 77 as of 2016-10-20 23:49:10 →
Size: 2312
Editor: MarkBarton
Comment:
← Revision 251 as of 2018-03-22 01:02:47 → ⇥
Size: 1671
Editor: MarkBarton
Comment:
Deletions are marked like this. Additions are marked like this.
Line 5: Line 5:
 * Type B Past Week Summary
  * Fabian, Mark and Liu-kun did BS installation at Kamioka:
   * They replaced the thrust bearing in the BF with a stainless version. While replacing the picomotor spring, they found several issues with screws.
   * They removed the sheet metal cable clamp on the bottom of the BF and installed a redesigned one.
   * They installed the "flying saucer" cable clamp on the maraging rod between the IM and BF, and attached the cables. There was an issue with the cables from the bottom OSEMs, which are too short by about 300 mm.
   * They suspended the IM. Relative to the mass budget, about 700 g of trim mass had to be taken off to get good balance. There was also a problem with rubbing. It turned out that the keystone and the attached central PEEK coil former for the LVDT were at an angle, and the inside of the coil former was fouling on the outside of the pole piece for the magnets. It's not yet clear why the keystone was misaligned.
  * Hirata-san:
   * Made drawings of (revised) stub flag gluing jigs.
   * Worked on BS full-assembly drawings for Saito-sensei.
   * (For other groups)
    * Made a 3D model of maraging wires.
    * Finished making drawings of PRM inner frame.
    * Worked on re-setting up PC after crash.
 * Longer term to-do list
  * Do Inventor assembly for SRx in chamber and on assembly frame (Hirata) - SR2/SR3 DONE, SRM ongoing.
   * Part "disk security" top has to be modified - screw positions do not match.
  * Write more of payload assembly procedure (Fabian) - ONGOING
  * Write more of BS Assembly Procedure [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=4235| E1504235]], [[https://onedrive.live.com/redir?resid=D5CCFA70A378E0D0!195&authkey=!AM_usynuo9QI57g&ithint=folder,webloc|E1504235 draft]] (Mark) - ONGOING
  * Lower breadboard installation to be incorporated into the procedure document.
  * Work on BS simulation (Fabian)
  * Do BS Simulink model (Mark, Kokeyama) - TM/IM/BF level DONE
  * Do 2D drawings of SR2 parts (Hirata)
  * Redesign SRx IM wire clamps for larger prisms, remachined RMs
  * Order SRM/PRM parts (Hirata/Shoda)
  * Order SRx fasteners (Hirata)		 === Type B (Mark) ===
==== Report for week of 3/19 ====
 * Fujii-kun successfully assembled and tested a geophone pod (klogs 4492, 4508).
Line 31: Line 9:
 
==== Plan for week of 3/19 ====
 * Fujii-kun joins.
 * Mark at LVC meeting
 * Fujii-kun at Kamioka (including Wed 3/21)
 * Kozu-kun at Kamioka Mon-Tue.
 * All others at Mitaka
 * --
 * SR2 TFs and control loop development (Shoda-san and Enzo).
 * Assemble four geophone pods (Fujii-kun and Kozu-kun at Kamioka).
 * Make two sets of IM OSEMs (Shoda-san and Enzo)
 * Make last in-air pico adapter cable (Enzo).
 * Make three in-air stepper splitter cables for SR2, SR3 and SRM (Enzo).
 * Set up dummy BS prism removal (Hirata-san).

==== Plan for week of 3/26 ====
 * Tanioka-kun joins.
 * Mark vacation.
 * Shoda-san at Mitaka
 * Others at Kamioka
 * --
 * Lay SR3 in-air cabling (Enzo++).
 * Finish tuning of BFs (Hirata-san++).
 * SF check (Hirata-san++).
  * Check load capacity.
  * Check fit of caps.
  * Add cable clamps to bases.
  * Add cable clamps and Cu segments to caps (only if they fit well).
  * Cable LVDTs and steppers.

==== To-Do Lists, Schedule ====
 * [[KAGRA/Subgroups/VIS/TypeB/March2018]]
 * [[KAGRA/Subgroups/VIS/TypeB/April2018]]
 * [[KAGRA/Subgroups/VIS/TypeB/ToDoBS]]
 * [[KAGRA/Subgroups/VIS/TypeB/ToDoSR]]
 * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7779|JGW-L1807779-v1 Type B Schedule (SR)]]

==== Vacation Info ====
 * Mark at LVC, then vacation, 3/18 (Sun) - 4/1 (Sun)
 * Fabian vacation, 3/26-4/27 (then gone).

Scraps of text for incorporation in the VIS Meeting Minutes

KAGRA/Subgroups/VIS/MeetingNAOJ

Type B (Mark)

Report for week of 3/19

  • Fujii-kun successfully assembled and tested a geophone pod (klogs 4492, 4508).

Plan for week of 3/19

  • Fujii-kun joins.
  • Mark at LVC meeting
  • Fujii-kun at Kamioka (including Wed 3/21)
  • Kozu-kun at Kamioka Mon-Tue.
  • All others at Mitaka
  • --
  • SR2 TFs and control loop development (Shoda-san and Enzo).
  • Assemble four geophone pods (Fujii-kun and Kozu-kun at Kamioka).
  • Make two sets of IM OSEMs (Shoda-san and Enzo)
  • Make last in-air pico adapter cable (Enzo).
  • Make three in-air stepper splitter cables for SR2, SR3 and SRM (Enzo).
  • Set up dummy BS prism removal (Hirata-san).

Plan for week of 3/26

  • Tanioka-kun joins.
  • Mark vacation.
  • Shoda-san at Mitaka
  • Others at Kamioka
  • --
  • Lay SR3 in-air cabling (Enzo++).
  • Finish tuning of BFs (Hirata-san++).
  • SF check (Hirata-san++).
    • Check load capacity.
    • Check fit of caps.
    • Add cable clamps to bases.
    • Add cable clamps and Cu segments to caps (only if they fit well).
    • Cable LVDTs and steppers.

To-Do Lists, Schedule

Vacation Info

  • Mark at LVC, then vacation, 3/18 (Sun) - 4/1 (Sun)
  • Fabian vacation, 3/26-4/27 (then gone).

KAGRA/Subgroups/VIS/TypeB/Minutes (last edited 2022-10-28 10:02:46 by fabian.arellano)