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LAT Monthly Status Review 1 Sep 2005 Design Integration and Analysis. Martin Nordby John Ku Jack Goodman. Design Support Status. Flight/fly-away hardware designs (all remaining hardware listed) MLI blankets: draft drawings still out for check

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slide1

LAT Monthly Status Review

1 Sep 2005

Design Integration and Analysis

Martin Nordby John Ku Jack Goodman

design support status
Design Support Status
  • Flight/fly-away hardware designs (all remaining hardware listed)
    • MLI blankets: draft drawings still out for check
    • External fly-away instrumentation cables: layout complete
    • TKR accel mount bracket: drafts complete, waiting to send out for check
  • Assembly drawings (all remaining assembly drawings listed)
    • LAT-DS-06721 External Cable Installation Kit
      • First draft bill of materials complete; drawing in internal check
    • LAT-DS-02563-01 LAT Instrument Assembly
      • First draft bill of materials complete; drawing in internal check
    • LAT-DS-01624-01 LAT Top Assembly
      • Model up-to-date, but drawing not yet started
  • Interface Drawings
    • All interface drawings released and up-to-date with no known liens
integration planning
Integration Planning
  • LAT Integration Sequence (LAT-MD-00676-04)
    • Updated rev put in release cycle this month—includes early ACD, SIU integration and FSW testing
  • Configuration drawings
    • LAT Instrument Configuration Assembly
      • Drawing complete—waiting internal checking
  • Integration MGSE (all remaining integration MGSE listed)
    • ACD Lift Fixture
      • Drawings completed this month—drawings released, with 4 rev’s in release cycle now
      • Design review held this month
    • EM-SIU Mount Plate
      • Drawing released this month
environmental test planning
Environmental Test Planning
  • Current focus is to complete all Plan-level documents by the end of August
    • All Test Plans are out in the release cycle
  • Next step (Aug-Sep)
    • Develop procedure list—being prepared for NRL F2F on Sep 7
    • Complete MGSE designs—in progress; see status chart
    • Start drafting procedures—not started yet
    • Finalize NRL logistics plans—Implementation Plan draft being prepared for NRL F2F
    • Develop Pathfinder plans for prototyping at NRL in November—pathfinder activities identified; plans to be discussed at NRL F2F
  • Pathfinder (Oct-Nov)
    • Complete all procedures that are needed for Pathfinder
    • Walk through procedures using real MGSE hardware at NRL
    • Update procedures based on Pathfinder experiences
    • Release procedures prior to TRR and LAT shipment
environmental test configuration drawings and status
These show flight hardware and MGSE/STE in their test configuration

Includes all information needed to support test set-up procedures

Shows all mechanical test and handling equipment that is used for the test

Configuration Assemblies being worked in conjunction with finalizing MGSE designs for the tests

Environmental Test: Configuration Drawings and Status
environmental test mgse ste
Environmental Test MGSE/STE
  • Transport Container
    • NRL working on retrofitting a surplus container
    • Design review planned for NRL F2F on Sep 8
  • Test Interface Plate
    • Assembly work started at SLAC—needed for Grid2 static load test
  • Test Stand/Spreader Bars
    • Drawings completed in August
    • Assembly and proof test plans completed in August
    • Structural analysis completed in August
    • Final Design Review held on Aug 25
    • RFP out on street now
  • T-Vac Sink Plates and Cal-Rod Cage
    • Thermal and electrical design completed in August
    • Mechanical design complete—review planned for NRL F2F
  • Acoustic Simulator
    • Conceptual design completed in August
    • Working details to ensure correct acoustic response
    • Detailing should be completed in mid-Sep
structural analysis accomplishments
Structural Analysis: Accomplishments
  • LAT System Level
    • Grid Static Load Test (GSLT)
      • Finalized Grid static test load cases and instrumentation points – inputs given to NTS
      • TIP Proof test load cases defined and instrumentation points– inputs given to NTS
      • Worked out several practical issues with I&T regarding GSLT
    • Continued LAT Environmental test planning
      • Dynamics Test Plan in release cycle
  • LAT Subsystem Level
    • MGSE
      • Test Stand analysis and report complete – review held, some action items to address
      • Test Interface plate analysis and report complete – review held, with no action items
      • ACD Lift Fixture analysis and report complete – review held
    • TKR Subsystem
      • No activity
    • Mechanical Subsystem
      • Supported Radiator acoustic test – hardware passed without issue; qual levels achieved
    • EBOX Subsystem
      • No activity

T

I

T

I

T

T

D

= Flight Design

= Integration Prep

= LAT/SS Test Prep

I

T

structural analysis near term milestones and status
Structural Analysis: Near-term Milestones and Status
  • LAT System Level
    • LAT Static Testing
      • Complete Pre-test analysis: predictions, fixture evaluation, hold TRR – ECD = 9/9/05
      • Support testing in third week of September – ECD = 9/19/05 – 9/30/05
    • LAT Dynamics Testing
      • Update LAT vibration test predictions – ECD = 10/15/05
      • Support Pathfinder activities at NRL – ECD = ongoing through Nov 2005
      • Continue planning with I&T and NRL for LAT environmental testing – ECD=ongoing through test
    • MGSE for I&T: augment MGSE analysis with additional I&T needs, as required
      • Complete Test Stand review action items
  • LAT Subsystem Level
    • TKR Subsystem
      • Continue to support tower testing by phone – ECD = ongoing through last Tower test
    • Mechanical Subsystem
      • Support radiator static tests @ SLAC – ECD = TBD
    • EBOX Subsystem
      • Complete TEM/TPS Vibration test report
      • Support GASU and PDU Protoflight tests

T

I

T

I

T

T

T

D

= Flight Design

= Integration Prep

= LAT/SS Test Prep

I

T

thermal engineering activities completed
Thermal Engineering Activities – Completed
  • Design Engineering and Support
    • N/A
  • LAT Level Thermal Analysis and Tests
    • LAT TVAC S/C bus simulation, ACD and radiator sink plates heater circuit design finished
  • Subsystem Support and Oversight
    • Supported TKR 7, 10 TVAC test at Alenia, 31 July – 6 August
  • LAT Thermal Control System
    • Radiators connected with Radiator Control and Monitor Console and checked out for TVAC test.
  • Lockheed Thermal Control System Hardware
    • Radiators integrated onto test stand and installed into LM Delta chamber
thermal engineering activities current
Thermal Engineering Activities – Current
  • Design Engineering and Support
    • Environmental Specification – change Tracker Acceptance Level Tests (35C to 45C)
    • Reviewing electrical grounding scheme for MLI blankets with NASA/GSFC
  • LAT Level Thermal Analysis and Tests
    • Thermal math model for LAT TVAC Test almost complete—LAT support stand GSE will be incorporated into model when time becomes available (after radiator/TCS protoqual tests–end of August)
    • Modification of orbit thermal model to predict ground operation temperatures with integrated ACD
  • Subsystem Support and Oversight
    • Planning for TKR TVAC support: TKR 11 & 12 week of 5 Sept and TKR 13 & 14 week of 12 Sept.
  • LAT Thermal Control System
    • RCMC is currently being used in Radiator/TCS Protoqual test.
  • Lockheed Thermal Control System Hardware
    • Radiator/TCS Protoqual Test in progress; hot performance and cold survival test segments completed. TVAC test
thermal engineering activities planned
Thermal Engineering Activities - Planned
  • Design Engineering and Support
    • Complete detailed MLI design
    • Review, then fabricate MLI blankets; two sets, one set for tests and other for flight
  • LAT Level Thermal Analysis and Tests
    • Thermal Math Model, Ver. 6.1, reduced node
    • Thermal Math Model, Ver. 6.2, LAT TVAC test configuration
    • Document analysis of LAT transition from Survival to Operating Mode
    • 200 Node Launch Vehicle Thermal Math Model
    • Develop refined ground cooling scheme for LAT with light-tight shield and integrated ACD
  • Subsystem Support and Oversight
    • Support TVAC tests of all eboxes
    • Support TVAC tests of TKR 11 - 14
  • LAT Thermal Control System
    • Preliminary verification during LM Radiator Protoqual Tests, now in progress
    • TCS verified in LAT TVAC tests at NRL
  • Lockheed Thermal Control System Hardware
    • Complete radiator TVAC test and deliver to SLAC