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LAT Face-to-Face Manager’s Meeting 15 June 2005 Environmental Test Planning

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LAT Face-to-Face Manager’s Meeting 15 June 2005 Environmental Test Planning. Martin Nordby Neil Johnson. Full LAT Functional and FSW Test TCS Functional Test EMI/EMC Emissions/Susceptibility Test. Limited Performance Test Comprehensive Performance Test SVAC Test. F. L. C. T. S. E.

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slide1

LAT Face-to-Face Manager’s Meeting

15 June 2005

Environmental Test Planning

Martin Nordby Neil Johnson

environmental test planning

Full LAT Functional and FSW Test

TCS Functional Test

EMI/EMC Emissions/Susceptibility Test

Limited Performance Test

Comprehensive Performance Test

SVAC Test

F

L

C

T

S

E

Environmental Test Planning
  • LAT-MD-02717, “Environmental Test Sequence”
    • Been in the release cycle since early May
    • Updated LAT performance test info to match Per. and Ops Test Plan per Rich Baun
      • Every LAT perf test given a name, to correlate with P&O Test Plan
      • Changed NRL incoming test from CPT to LPT
    • Release put on hold until CPT/LPT test disagreement is resolved
      • Being worked in P&O Test Planning meeting

Ship to NRL

Baseline

Rev date: 8 June 2005

C

F

S

at SLAC

Receive, Unpack

Sine Vibe

Mount Radiators

EMI/EMC

Acoustic

L

T

L

L

L

CS/CE

RS/RE

L

L

L

L

L

Pre Post-Axis

Pack LAT

Ship to Spectrum

Remove Radiators

Weight CG

T-Bal

T-Cycle

Final

Pre-TV

L

C

C

S

S

C

S

L

Note: electrical tests with the same label are not necessarily identical tests

test plan status
Test Plan Status
  • LAT-SS-00895, “LAT Instrument Survey Plan”
    • Released and in-use at SLAC
    • May need revising to include any changes to plans for surveying at NRL
  • LAT-MD-01196, “LAT Dynamics Test Plan
    • Finalized accel placement on TKR
    • Ready to go, but need to go through one final clean-up pass
    • Updated draft ECD: 6/24
  • LAT-MD-00276, “LAT EMI/EMC Test Plan”
    • No new info on updating EMI/EMC requirements  Michael Lovellette working on tracking down Fred Blanchette to move this forward
    • Updated draft ECD: 6/24 (without changes to test levels)
  • LAT-MD-01600, “LAT Thermal-Vacuum Test Plan
    • Updated test timeline
      • Moved bake-out to end of test
      • Defined test names for all LAT performance tests (e.g.: “Cold-TB LPT”) to correlate with Perf. And Ops. Test Plan
    • Started final update of plan
      • Updating MGSE/STE requirements based on new baseline thermal control plans
    • Updated draft ECD: 6/24
mgse development
MGSE Development
  • Test Interface Plate
    • This supports the LAT for all post-integration ops (shipping, env testing), as well as Grid2 for static load testing
    • Requirements and interfaces finalized
    • Structural analysis is complete
    • Part drawings in release cycle
    • RFP is on its way to Purchasing
    • Assembly drawing, including assembly procedure is in review prior to release cycle
  • Transport Container
    • Being built as a turn-key design/build/test contract
      • Still looking at re-using an old NRL container, if we can get analysis and test data on it
    • Requirements and interfaces finalized
    • Source control drawing and statement of work are at start of release cycle (waiting for Natalie)
    • RFP in Purchasing at SLAC
  • Test Stand
    • Used for supporting LAT during moves at NRL, acoustic, EMI, and T-Vac tests
    • Requirements largely understood; interfaces for T-Vac and T-Vac STE still open until that design matures
    • Structural analysis started; expect completion by 6/22
    • Design being updated to add features and details
    • Need date is late June—this is getting critical to support Pathfinder in late September
    • Drawing ECD: unknown
mgse development cont
MGSE Development (cont.)
  • T-Vac Thermal STE
    • Sink plate and heater cages for thermally controlling LAT during T-Vac
    • Thermal and electrical design requirements have just been finalized
    • Interfaces and design concepts not well understood yet, since the mechanical requirements are not well-understood
    • Active design work on this has not yet started  now that the thermal requirements have stabilized, we will get a designer going on this
    • Drawing ECD:
    • This is not a schedule driver
  • Remaining MGSE/STE hardware design has generally not yet started: none are schedule drivers, all are relative small and discrete, and all are being used as fill-in work
    • SC Top Deck acoustic simulator—not started
    • Radiator SC Strut simulator—waiting on SC strut design info
    • Spreader Bars—design started
    • Test MLI blankets—waiting completion of flight blanket design
egse development and networking
EGSE Development and Networking
  • T-Vac cabling
    • Cable pin-outs and schematics have been finalized
    • Feedthroughs have been ordered
    • Internal cable routing/lengths being finalized now
    • Internal cable drawings have been started (ECD: )
    • External cable drawings not yet started (ECD: )
  • EMI cabling
    • Cable routing is waiting on EMI cell layout drawing completion
    • This cabling will also be used for acoustic, sine vibe, and high-bay testing
  • Mobile Computing Rack
    • Final architecture not yet worked out—needed at SLAC before LAT CPT ~Nov
    • Many parts not purchased yet—firewall and router ordered, with ETA in early November
    • Issue is priority with other work
  • Networking
    • Env testing at NRL
      • No MOU paper yet from NRL  need pressure applied to keep this moving
    • Observatory I&T at Spectrum
      • Network planning just starting
      • Lots of details to work, but need a contact at Spectrum to work with (Brian is working this)
facilities operations and logistics
Facilities, Operations, and Logistics
  • NRL facility drawing status
    • Sine vibe table LAT-DS-5905-01 complete 4/20/2005 (rev in progress)
    • Slip table LAT-DS-5903-01 complete 5/2/2005
    • Expander head LAT-DS-5904-02 complete4/25/2005
    • High-bay tent LAT-DS-5899-01 complete 4/20/2005
    • Vibe facility LAT-DS-5902-01 in release cycle at NRL
    • Acoustic facility LAT-DS-5906-01 in release cycle at NRL
    • T-Vac facility LAT-DS-5907-01 complete 4/20/2005 (rev in progress)
    • EMI facility LAT-DS-xxxxx ECD: 6/21/2005
    • A-59 west high-bay LAT-DS-xxxxx ECD: 7/15/2005
  • Key issues being worked at NRL (Bill Raynor)
    • Trestle bridge load certification
    • T-Vac trolley retrofit/load test—waiting LAT footprint from SLAC
    • How to move LAT into and out of T-Vac chamber
observatory i t planning
Observatory I&T Planning
  • LAT-MD-06560, “Plan for Integrating and Testing the LAT on the Observatory”
    • Significantly redlined at Spectrum in late May
    • Redlines being incorporated into an updated draft
    • Once this is finalized, LAT will release it and Spectrum will add it to a new appendix of the ICD
    • Intent is to capture all issues regarding Obs I&T that either affect us or that we have requirements for
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