Post on 21-Dec-2015
GLAST LAT Project LAT Mgr’s Meeting 2005
1
LAT Planning MeetingLAT Planning Meeting
Mechanical/Thermal Systems
March 17, 2005
Marc Campell
GLAST LAT Project LAT Mgr’s Meeting 2005
2
Status Mar. 15, 2005Status 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.
GLAST LAT Project LAT Mgr’s Meeting 2005
3
Status Mar. 15, 2005 (cont)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
GLAST LAT Project LAT Mgr’s Meeting 2005
4
X-LAT Plate Assy Fit CheckX-LAT Plate Assy Fit Check
Heat Pipes Ground Cooling Tube
RIT interface flange
GLAST LAT Project LAT Mgr’s Meeting 2005
5
-Y Radiator Panel-Y Radiator Panel
RIT interface flange
LAT Mounting Point
Reservoir
GLAST LAT Project LAT Mgr’s Meeting 2005
6
MECH MilestonesMECH Milestones
GLAST LAT Project LAT Mgr’s Meeting 2005
7
Threats to RFIThreats 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.