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= Minutes of the Type-A Meeting on 2016/6/14 = 2016/6/14 13:00 - 15:00 @ Room 210 Participants: Takahashi, Ishizaki, Sato, Okutomi |
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= Type-A Meeting on 2016/7/12 = 2016/7/12 11:00 - 12:30 @Kashiwa Participants: Takahashi, Ishizaki(Skype), Sato, Okutomi === Minutes === 0-2 Simulation (Okutomi) * The frequency shift was due to damping model. * Setting for GAS filters was corrected. * Going BF damping simulation by manual tuning. * Result will be reported by the VIS meeting. 2-3 Setting of cross chamber (VAC) * Horizontal position of the top flange on the cryostat was different from the center of the top chamber by 25mm along beam axis. 3-2 Assembly of TF+IP (Sato) * The place should be in the center room of KAGRA considering DGS setup. 3-5 ACC preparation (Sato) * 6 sets of ACC were measured. * Additional 3 sets will be taken from NM1 in TAMA on 14th. * Tube for the spot cooler was set. 4-2,3 Standard filter (Hirata) * 2 sets were finished. 5-1 Manufacturing of blade (Takahashi) * Cutting of 22 blades was finished. 5-6 Design of damper (Sato) * Original design from VIRGO does not fit to the space around BF. * The bending point is higher than the suspension point. 6-1 Design of EQ stop (Ishizaki) * Made outer shape of end plate. 6-3 Test of prototype (Ishizaki) * Assembling of the EQ stop prototype was started. * Thin dummy weights were prepared. * I-bolts on the plate were interfered with connection rods. * Outer diameter of the stop plate was larger than inner diameter of the frame lock. 6-4 Design of release sensor (Sato) * 3 sensors were attached to the plate for the prototype test. 8-1 Design of dummy payload (Okutomi, Ishizaki) * Circular type weight is suitable for combined dummy load. * Okutomi will send a cartoon soon. 9-5 Installation * Protection for falling items is necessary. Check the small bolts size to decide the mesh of net. * Discuss on evacuation of the chamber. Next meeting: 2016/7/19 13:00 = Type-A Meeting on 2016/7/5 = 2016/7/5 13:00 - 14:00 @Kamioka Participants: Takahashi, Ishizaki, Sato, Okutomi === Minutes === 0-2 Simulation (Okutomi) * The frequency shift might be due to damping model. * Matlab model was remade. * Sensors and actuators were added to the BF stage. 1-1 Clean Booth (FCL) * The booth will be ready in December. 2-1 Setting of top chamber (VAC) * The schedule was shifted to December. 2-3 Setting of cross chamber (VAC) * From 8th July, presence on 11th. 3-2 Assembly of TF+IP (Sato) * The place should be considered again. 3-5 ACC preparation (Sato) * 5 sets of ACC were measured. 5-1 Manufacturing of blade (Takahashi) * Cutting of 12 blades was finished. 5-2 Assembly of BF (Hirata) * Will be started in September. 6-3 Test of prototype (Ishizaki) * The first setup and its procedure were shown. * Thin dummy weight and short hoock should be prepared. * Some cap screws on stop plates should be replaced to stop screws. 6-4 Design of release sensor (Sato) * Under cable connection. 8-1 Design of dummy payload (Okutomi, Ishizaki) * Interferometer test was canceld. * The EQ stop and the dummy payload should be ordered together in August. 9-2 Transportation to 2F (Takahashi, Ishizaki) * Situation of the Y-end was investigated. * Maximum box width, which can go through the tunnel, was 1.5m. * Access road from Mozumi entrance was improved. 9-3 Cable assembly (Sato) * Ask CRY number of cables. Next meeting: 2016/7/12 11:00 = Type-A Meeting on 2016/6/28 = 2016/6/28 13:00 - 14:30 @The 4th meeting room Participants: Takahashi, Ishizaki, Sato, Okutomi === Minutes === 0-1 Assembly model (Ishizaki) * Made the test setup. 0-2 Simulation (Okutomi) * No progress. The results will be reported in the next VIS meeting. 1-1 Clean Booth (FCL) * Present design: The booth is hung from the ceiling. 2-3 Setting of cross chamber (VAC) * From 8th July, presence on 11th. 3-5 ACC preparation (Sato) * Working space: The 20m lab was arranged on 27th. 4-3 Standard filter (Hirata) * Assembly of FR and measurement: 1 set was finished. 5-1 Manufacturing of blade (Takahashi) * Cutting: 6 blades by July + 6 blades by Sep. 5-6 Design of damper (Sato) * Device: It is difficult to put the devices at the center of suspension point. 6-1 Design of EQ stop (Ishizaki) * Modeling: 3D model for the test setup was built. 6-3 Test of prototype * Frame lock, extension rods, adjusters were delivered. * Hoist's tool will be necessary. * Test items related to the frame design have high priority. Target date is 22th July. 6-4 Design of release sensor (Sato) * Bases and shims were delivered. * Plate additional machining: Delivery on 29th. * Circuit: LED box was made. Cabling has not been applied yet. 8-1 Design of dummy payload (Okutomi, Ishizaki) * Cartoon: Okutomi should send to Ishizaki soon! 9-1 Establishment of procedure (Takahashi, Okutomi) * Test plan is made parallel with test work. Check the list of test items. 9-2 Transportation to 2F (Takahashi, Ishizaki) * Situation of the site will be checked in 5-7th July. * Electric crawler is limitted, for example, for 200kg load. 9-3 Cable assembly (Sato) * Number of cables: CRY will decide it by the end of June. Next meeting: 2016/7/5 13:00 = 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 to Ishizaki 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: Thermocouples are added. Ask Tomaru total number. Next meeting: 2016/6/28 13:00 = Type-A Meeting on 2016/6/14 = 2016/6/14 13:00 - 15:00 @ Room 210 Participants: Takahashi, Ishizaki, Sato, Okutomi |
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* Frame lock: Max. stress was 160MPa with thickness of 30mm (limit 180MPa). | * Frame lock: Maximum stress was 160MPa with thickness of 30mm (limit 180MPa). |
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9-1 Establishment of procedure | 9-1 Establishment of procedure (Takahashi, Okutomi) |
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=== Next meeting === 2016/6/21 13:00 |
Next meeting: 2016/6/21 13:00 |
Task list
http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=4792
Type-A Meeting on 2016/7/12
2016/7/12 11:00 - 12:30 @Kashiwa
Participants: Takahashi, Ishizaki(Skype), Sato, Okutomi
Minutes
- 0-2 Simulation (Okutomi)
- The frequency shift was due to damping model.
- Setting for GAS filters was corrected.
- Going BF damping simulation by manual tuning.
- Result will be reported by the VIS meeting.
- Horizontal position of the top flange on the cryostat was different from the center of the top chamber by 25mm along beam axis.
- The place should be in the center room of KAGRA considering DGS setup.
- 6 sets of ACC were measured.
- Additional 3 sets will be taken from NM1 in TAMA on 14th.
- Tube for the spot cooler was set.
- 2 sets were finished.
- Cutting of 22 blades was finished.
- Original design from VIRGO does not fit to the space around BF.
- The bending point is higher than the suspension point.
- Made outer shape of end plate.
- Assembling of the EQ stop prototype was started.
- Thin dummy weights were prepared.
- I-bolts on the plate were interfered with connection rods.
- Outer diameter of the stop plate was larger than inner diameter of the frame lock.
- 3 sensors were attached to the plate for the prototype test.
- Circular type weight is suitable for combined dummy load.
- Okutomi will send a cartoon soon.
- Protection for falling items is necessary. Check the small bolts size to decide the mesh of net.
- Discuss on evacuation of the chamber.
Next meeting: 2016/7/19 13:00
Type-A Meeting on 2016/7/5
2016/7/5 13:00 - 14:00 @Kamioka
Participants: Takahashi, Ishizaki, Sato, Okutomi
Minutes
- 0-2 Simulation (Okutomi)
- The frequency shift might be due to damping model.
- Matlab model was remade.
- Sensors and actuators were added to the BF stage.
- The booth will be ready in December.
- The schedule was shifted to December.
- From 8th July, presence on 11th.
- The place should be considered again.
- 5 sets of ACC were measured.
- Cutting of 12 blades was finished.
- Will be started in September.
- The first setup and its procedure were shown.
- Thin dummy weight and short hoock should be prepared.
- Some cap screws on stop plates should be replaced to stop screws.
- Under cable connection.
- Interferometer test was canceld.
- The EQ stop and the dummy payload should be ordered together in August.
- Situation of the Y-end was investigated.
- Maximum box width, which can go through the tunnel, was 1.5m.
- Access road from Mozumi entrance was improved.
- Ask CRY number of cables.
Next meeting: 2016/7/12 11:00
Type-A Meeting on 2016/6/28
2016/6/28 13:00 - 14:30 @The 4th meeting room
Participants: Takahashi, Ishizaki, Sato, Okutomi
Minutes
- 0-1 Assembly model (Ishizaki)
- Made the test setup.
- No progress. The results will be reported in the next VIS meeting.
- Present design: The booth is hung from the ceiling.
- From 8th July, presence on 11th.
- Working space: The 20m lab was arranged on 27th.
- Assembly of FR and measurement: 1 set was finished.
- Cutting: 6 blades by July + 6 blades by Sep.
- Device: It is difficult to put the devices at the center of suspension point.
- Modeling: 3D model for the test setup was built.
- Frame lock, extension rods, adjusters were delivered.
- Hoist's tool will be necessary.
- Test items related to the frame design have high priority. Target date is 22th July.
- Bases and shims were delivered.
- Plate additional machining: Delivery on 29th.
- Circuit: LED box was made. Cabling has not been applied yet.
- Cartoon: Okutomi should send to Ishizaki soon!
- Test plan is made parallel with test work. Check the list of test items.
- Situation of the site will be checked in 5-7th July.
- Electric crawler is limitted, for example, for 200kg load.
- Number of cables: CRY will decide it by the end of June.
Next meeting: 2016/7/5 13:00
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.
- Deadline: The end of June
- Work: From 8th July, presence on 11th.
- Make working space in the 20m lab on 27th June.
- Assembly of FR and measurement: by August for 6 sets.
- Size: 13mm, 72PSC for each
- Cutting: 6 blades by July + 6 blades by Sep.
- Device: The last one was too small, actually about 125mm. Design for vertical as well.
- Modeling: 3D model for the test setup was build.
- Frame lock: Delivered by 24th.
- Other parts (rod, adjuster, bolts) will be ordered.
- Base: Making in ATC.
- Plate additional machining: Ordered.
- Circuit: LED will be tested.
- Cartoon: Okutomi should send to Ishizaki soon!
- Mirror holder: Refer the mirror box for PR.
- Test plan: Check FR for 2 BFs.
- Number of cables: Thermocouples are added. Ask Tomaru total number.
Next meeting: 2016/6/28 13:00
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.
- Problem: Conversion to Simulink was ok. The structure of control has a problem in Matlab. Reconstructing now.
- Space: Make working space in the 20m lab.
- Design: 5 blades are used for 200kg load.
- Device: Asking design of LVDT-Act. to VIRGO. The device is located at the center of mass.
- 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).
- Position: Inner side of the stage. Need to addtional machining to the EQ stop plate.
- Electronics: Circuit is simple in the test (handmade).
- Condition: 25cm mirror, alignment by moving mass. Make a cartoon.
- Actuation: Length control is necessary? Check PZT actuator.
- Test plan: Prepare for 2 sets of release sensors. Check FR for 2 BFs.
Next meeting: 2016/6/21 13:00