GLAST Large Area Telescope:

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Presentation transcript:

GLAST Large Area Telescope: Gamma-ray Large Area Space Telescope GLAST Large Area Telescope: Mechanical Systems Peer Review March 27, 2003 Section 2.1 – Requirements & Compliance Leonard Lee SLAC Systems Engineer lhlee@slac.stanford.edu

Topics Agenda Requirements flow down Doc status Key Requirements & compliance Requirement changes since dPDR

LAT Requirements Flow-Down

Requirements Flow-Down and Documentation Status LAT Perf Spec LAT-SP-00010-1 31 Aug 2000 LAT Envir. Spec LAT-SS-00778-1 10 Feb 2003 LAT Stay-Clear Drawing LAT-DS-00040-5 X-LAT Design Spec LAT-SS-00xxx-1 X-LAT Plate SCD LAT-DS-01247-1 Radiator Design Spec LAT-SS-00394-1 Mech Systems Subsystem Spec LAT-SS-00115-2 Mid-Plate SCD LAT-DS-01257-1 Subsystem ICD’s Subsystem IDD’s Grid Box Design Spec LAT-SS-00775-1 LAT Thermal Design Param’s LAT-TD-00224-3 Top Flange Heat Pipe SCD LAT-DS-01393-1 Thermal Control Sys. Perf. Spec LAT-SS-00715-1 LAT Dissipated Power Summary LAT-TD-00225-3 LH/RH Down Spout Heat Pipe SCD LAT-DS-01392-1 LAT-DS-01393-1 LAT Instrument Layout Dwg LAT-DS-00038-3 Radiator IDD LAT-DS-01221-1

Requirement Changes since dPDR The LAT Environmental Specification(LAT-SS-00778-01-D8) is a new requirements document for all subsystems including the LAT Mechanical Systems Resulting Requirement Change(s) Grid Box Static-Equivalent Accelerations Radiator Static-Equivalent Accelerations Out-of-plane Distortion for the TKR, CAL, ACD & S/C Subsystems to Grid Interfaces CAL- Grid Interface Loads Radiator Interface Loads Grid Box Random Vibration Spectra Grid Box Temperature Limits Radiator Temperature Limits Changes have been accommodated in the design, except Radiator is still evaluating impacts of new environmental loads. The current design is expected to be acceptable.

Key Mechanical Systems Requirements 1 LEGEND Y: Design Compliant, P: Design Partially Compliant, WC: Will Comply, A: Analysis, D: Demonstration, I: Inspection, S: Similarity, T: Test

Key Mechanical Systems Requirements 2 LEGEND Y: Design Compliant, P: Design Partially Compliant, WC: Will Comply, A: Analysis, D: Demonstration, I: Inspection, S: Similarity, T: Test

Key Mechanical Systems Requirements 3 LEGEND Y: Design Compliant, P: Design Partially Compliant, WC: Will Comply, A: Analysis, D: Demonstration, I: Inspection, S: Similarity, T: Test

Key Mechanical Systems Requirements 4 LEGEND Y: Design Compliant, P: Design Partially Compliant, WC: Will Comply, A: Analysis, D: Demonstration, I: Inspection, S: Similarity, T: Test

Key Mechanical Systems Requirements 5 LEGEND Y: Design Compliant, P: Design Partially Compliant, WC: Will Comply, A: Analysis, D: Demonstration, I: Inspection, S: Similarity, T: Test

Key Mechanical Systems Requirements 6 LEGEND Y: Design Compliant, P: Design Partially Compliant, WC: Will Comply, A: Analysis, D: Demonstration, I: Inspection, S: Similarity, T: Test

Key Mechanical Systems Requirements 7 LEGEND Y: Design Compliant, P: Design Partially Compliant, WC: Will Comply, A: Analysis, D: Demonstration, I: Inspection, S: Similarity, T: Test

Key Mechanical Systems Requirements 8 LEGEND Y: Design Compliant, P: Design Partially Compliant, WC: Will Comply, A: Analysis, D: Demonstration, I: Inspection, S: Similarity, T: Test

End of Section 2.1