Transcript ppt
GLAST LAT Project LAT Mgr’s Meeting 2005 LAT Planning Meeting Mechanical/Thermal Systems March 17, 2005 Marc Campell 1 LAT Mgr’s Meeting 2005 GLAST LAT Project Status Mar. 15, 2005 SLAC • Grid is ready for sell to I&T • Bonding of Grid Thermistors and fly away thermocouples complete. • Shipped to B25 for fit up with Grid Perimeter ring. 2 GLAST LAT Project LAT Mgr’s Meeting 2005 Status Mar. 15, 2005 (cont) Lockheed Martin • New contract for environmental testing of Radiators and X-LAT Plate is in process. – Needs to be in place by Mar. 27 (end of existing contract) • X-LAT plate assembly is 80% complete – Heat pipes matched drilled to plate – 4 of 6 bonded – ECD 3/31 • +Y Radiator panels fabrication is complete less edge taping and instrumentation installation. – ECD 4/14 • -Y Radiator fabrication is 85% complete. Final machining, bottom bracket bonding and instrumentation installation. – ECD 4/30 3 LAT Mgr’s Meeting 2005 GLAST LAT Project X-LAT Plate Assy Fit Check Heat Pipes Ground Cooling Tube RIT interface flange 4 LAT Mgr’s Meeting 2005 GLAST LAT Project -Y Radiator Panel Reservoir RIT interface flange LAT Mounting Point 5 LAT Mgr’s Meeting 2005 GLAST LAT Project MECH Milestones 6 LAT Mgr’s Meeting 2005 GLAST LAT Project Threats to RFI • LM X-LAT & Radiator delivery have no float. • Radiator – First time use of bonding/assembly tool & procedures. There have been Discrepancies at each step along the way. MFG schedule and marching army costs. – Potential cost over runs in testing • Vibration/Acoustic tests – Fixture design – Instrumentation requirements • Final test plan for thermal vacuum. – Investigating an alternative chamber. • Timely resolution of test anomalies. 7