No. MIN/INFN/004/04

Place

INFN - Pisa

Date

23rd April 2004

Type of Meeting:

Static Test Status Review

 

Prepared by:

Nicola Saggini

Attendees

Company

Distribution List

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

Nicola Saggini

Stellar Solutions@INFN-Pisa

John Ku

Stellar Solutions@SLAC

Mark Molini

SLAC

Eric Swensen

Hytec

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Subject

Topics/Agreements

Action(s) TBP

Designated People

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

 

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

 

 

 

 

 

Tools to torque inches screws

 

2 bit sets, one torque screwdriver and a torque wrench (both calibrated) will be brought from the US

 

 

Mark Molini

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 1’’5/8 wrenches with long arms/levers

 

Mark Molini

 

Grease to be used with high loads

 

INFN – Pisa will procure appropriate viscous grease (thicksotropic)

 

 

Andrea Tenze

Nicola Saggini

 

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)

 

 

 

 

 

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

 

 

 

 

Enable two (2) LAN ports next to static test area (1 reserved for guests’ computers)

 

Andrea Tenze

Nicola Saggini

 

Procure a table, possibly with wheels

Andrea Tenze

Nicola Saggini

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;

 

 

 

 

 

Flipping to be done by hand, four (4) handles will be added to grid simulator to facilitate flipping operation

 

 

 

 

 

 

Writing of 1st draft of procedure (Follow up modifications/changes to be discussed by e-mail)

 

Nicola Saggini

Andrea Tenze

Test Procedure

 

Reference to document MSFC-STD-486. Problems finding the document

 

Find the document

 

John Ku

 

Test Frame Setup procedure

 

 

SLAC will write the test plan;

INFN will write the actual procedure with data from the plan.

 

 

 

 

 

Make allowances for a detailed step by step checklist of setup to be filled by test operator and an eyewitness

 

 

 

 

 

Prepare a log book for the static test

 

Andrea Tenze

Nicola Saggini

 

Calibration of load cell

 

 

 

Procure a 59 kOhm calibrated precision resistance shorting circuit for quick calibration of load cell

 

Nicola Saggini

 

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 

 

Eric Swensen

with

Jeff Tice

 

Find out how may trays are available at SLAC for this purpose and have them sipped to INFN – Pisa

 

John Ku

with

Jeff Tice

 

Need to define how often shall one check for second tray integrity

 

 

 

 

Displacement Probes

 

Four (4) displacement probes are needed for the correct execution of the test. Three (3) are currently available

 

 

 

 

 

Two (2) probes to go back to SLAC to allow correct procurement of all the necessary electronics/DAQ

 

Mark Molini

 

 

Buy two (2) more probes

 

Mark Molini

 

 

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

 

 

Remaining probe to be used to check if current probe holders allow to reach any position on test fixture

 

Nicola Saggini

Andrea Tenze

Odds&Ends

 

Documentation on instrumentation/test setup

 

Strain Gauge certificates from Hytec to INFN – Pisa

 

Eric Swensen to

Andrea Tenze

 

 

Pass-fail criteria TBD ASAP

 

 

 

 

DAQ to possibly include visual (and acoustic) alarms if limits are passed