No. MIN/INFN/004/04 |
Place INFN
- Pisa |
Date 23rd
April 2004 |
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Type of Meeting: Static
Test Status Review |
Prepared by: Nicola
Saggini |
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Attendees |
Company |
Distribution
List |
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Andrea
Tenze |
INFN
- Pisa |
All
Attendees Martin
Norby Nanda
Menon Tom
Venator Mike
Menning Robert
Johnson Jim
Martin Jeff
Tice Alessandro
Brez Ronaldo
Bellazzini Riccardo
Bagagli Emilio
Rapposelli Aldo
Troianiello |
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Nicola
Saggini |
Stellar
Solutions@INFN-Pisa |
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John
Ku |
Stellar
Solutions@SLAC |
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Mark
Molini |
SLAC |
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Eric
Swensen |
Hytec |
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Subject |
Topics/Agreements |
Action(s)
TBP |
Designated
People |
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M4
screws for bottom tray |
It has been agreed that
TORX + type screws (flight-like) will be used to fix bottom tray to static
test fixture |
Ask
Jeff Tice for spare of flight M4 screws to be used for static test |
John
Ku |
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The screws will either be sent by mail to INFN Pisa before start of static test on first flight bottom tray, or brought by John Ku and Mark Molini in their next visit to INFN Pisa |
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Tools
to torque inches screws |
2 bit sets, one torque
screwdriver and a torque wrench (both calibrated) will be brought from the US |
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Mark
Molini |
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Tool
to torque flange nut |
After some discussion on whether to buy the tool in the US (mainly for cost reasons) or having it built in the INFN Pisa shop, it has been decided that it is far more convenient to buy it in the US. Actually two (2) tools will be bought, one will be mailed to INFN Pisa, the other will be brought by Mark Molini on his next visit to Pisa |
Buy
two 15/8 wrenches with long arms/levers |
Mark
Molini |
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Grease
to be used with high loads |
INFN Pisa will
procure appropriate viscous grease (thicksotropic) |
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Andrea
Tenze Nicola
Saggini |
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Table
for computer case and monitor near granite table |
The Data Logger and Power
Supply will be left on granite table next to static test frame (strain gauges
cables are not long enough) |
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A need for real time
acquisition of the load being applied has been expressed, mainly to let the
operator have immediate feedback for the action he is performing |
Procure
appropriate OMEGADyn instrumentation/electronics |
Mark
Molini and/or John
Ku |
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Enable
two (2) LAN ports next to static test area (1 reserved for guests computers) |
Andrea
Tenze Nicola
Saggini |
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Procure
a table, possibly with wheels |
Andrea
Tenze Nicola
Saggini |
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Up-side
down test article installation procedure |
General guidelines for procedure: - Al fixture will be placed up-side down on pipe or other hollow element to support it; - Two sidewalls at 90° will be mounted on fixture; - Foam will be used to support second tray before screwing it onto fixture. Note: foam will remain in place for the whole test; - Foam between second tray and test article will again be used to hold bottom tray in place before screwing it onto fixture. Note: foam will remain in place for the whole test; - The remaining two sidewalls will be screwed in place; - Grid simulator in place; - Flipping of entire fixture; |
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Flipping to be done by hand, four (4) handles will be added to grid simulator to facilitate flipping operation |
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Writing
of 1st draft of procedure (Follow up modifications/changes to be
discussed by e-mail) |
Nicola
Saggini Andrea
Tenze |
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Test
Procedure |
Reference to document
MSFC-STD-486. Problems finding the document |
Find
the document |
John
Ku |
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Test
Frame Setup procedure |
SLAC will write the test
plan; INFN will write the actual
procedure with data from the plan. |
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Make allowances for a
detailed step by step checklist of setup to be filled by test operator and an
eyewitness |
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Prepare
a log book for the static test |
Andrea
Tenze Nicola
Saggini |
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Calibration
of load cell |
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Procure a 59 kOhm calibrated precision resistance shorting circuit for quick calibration of load cell |
Nicola
Saggini |
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Second
tray in test fixture |
A second tray is needed
for the correct execution of the static test. Also a set of spares is needed.
Hytec has two (2) trays available. |
Arrange
shipment of Hytec trays to INFN Pisa
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Eric
Swensen with Jeff
Tice |
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Find
out how may trays are available at SLAC for this purpose and have them sipped
to INFN Pisa |
John
Ku with Jeff
Tice |
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Need to define how often shall one check for second tray integrity |
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Displacement
Probes |
Four (4) displacement probes are needed for the correct execution of the test. Three (3) are currently available |
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Two
(2) probes to go back to SLAC to allow correct procurement of all the
necessary electronics/DAQ |
Mark
Molini |
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Buy
two (2) more probes |
Mark
Molini |
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Hytec
provides exact model of the very card used for first static test at Hytec to
SLAC, including Setup of Agilent card |
Eric
Swensen to Mark
Molini |
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Remaining
probe to be used to check if current probe holders allow to reach any
position on test fixture |
Nicola
Saggini Andrea
Tenze |
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Odds&Ends |
Documentation on
instrumentation/test setup |
Strain
Gauge certificates from Hytec to INFN Pisa |
Eric
Swensen to Andrea
Tenze |
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Pass-fail
criteria TBD ASAP |
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DAQ
to possibly include visual (and acoustic) alarms if limits are passed |
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