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X-ray Calorimeter

X-ray Calorimeter. If the facts don't fit the theory, change the facts. Albert Einstein. Mechanical Sara Riall David Peters 2 – 6 April, 2012. X-RAY CALORIMETER. Falcon 9 Fit Check. Mass Properties (20120405 a.m.). C.G. – C.P. Offset (20120402 p.m.). Bus Dimensions.

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X-ray Calorimeter

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  1. X-ray Calorimeter If the facts don't fit the theory, change the facts. Albert Einstein Mechanical Sara Riall David Peters 2 – 6 April, 2012

  2. X-RAY CALORIMETER

  3. Falcon 9 Fit Check

  4. Mass Properties (20120405 a.m.)

  5. C.G. – C.P. Offset (20120402 p.m.)

  6. Bus Dimensions

  7. Metering Structure Mass/Fabrication Mass in kilograms (kg), dimensions in centimeters (cm)

  8. Metering Structure Mass/Fabrication(cont’d) Mass in kilograms (kg), dimensions in centimeters (cm) • Isogrid • Material thickness as shown • 48 webs (24 CW, 24 CCW) • Webs rotate 180° from top to bottom SKIN • Honeycomb panels • Panel thickness is 2.54cm [1.0 in] • Skin thickness varies as shown • Core 3.4-1/4-15-(5056)T • (0.0545 g/cm³ [3.4 lbs/ft³]) CORE SKIN

  9. Metering Structure Mass/Fabrication (cont’d) Mass in kilograms (kg), dimensions in centimeters (cm)

  10. Metering Structure Mass/Fabrication (cont’d) Mass in kilograms (kg), dimensions in centimeters (cm)

  11. Mass Rack-up Mass in kilograms (kg), dimensions in centimeters (cm)

  12. Mass Comparison

  13. Issues / Potential Risks / Future work • Verify that the CTE meets the mission requirements for the structure. • Determine if structure could be light-weighted further to improve on mass margin • Verify that the structure will support launch loads • Verify that the cp/cg offset can be managed in the x direction at 25 degree offset.

  14. Acronym list • CTE- coefficient of thermal expansion • FMA- flight mirror assembly • SMAD- space mission analysis and design • S/A –solar array • Cp-center of pressure • Cg- center of gravity • s/c –space craft • MS- mechanical structure • CCW- counterclockwise

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