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Weekly Summary Nanosat 5

Weekly Summary Nanosat 5. Spring Semester 29 April 2008 Mike Legatt. Last Week. AFRL CDR and Reports!!!!!!!!!!! Structural feedback Excellent work –

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Weekly Summary Nanosat 5

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  1. Weekly SummaryNanosat 5 Spring Semester 29 April 2008 Mike Legatt

  2. Last Week • AFRL CDR and Reports!!!!!!!!!!! • Structural feedback • Excellent work – • “Consider putting the battery box on the bottom, not the top. If you put it on top, you make the structure do something you don’t want it to do.” • “Don’t need to use so many nodes.” • Chasing the convergence • More sims in progress • Thermal feedback • “In general, the analysis lines up ‘very well’ with others seen before.” • Use SINDA/Thermal Desktop • Radio RF powers loss vs. thermal power loss • We have many nodes.

  3. Next Week • General • Prepare for FDR • Structural • Create a structural analysis handbook for subsequent Nanosat teams • Report revisions • Thermal • Create a thermal analysis handbook for subsequent Nanosat Teams • Use student version of ANSYS with reduced nodes • Report revisions

  4. Outstanding Issues General -ANSYS license expires 30 April 2008 -update reports as necessary -exit interviews Structural -continue to run sims and make structural modifications to ensure the satellite meets all AFRL structural requirements -all structural requirements now fulfilled Thermal -cold case sims -take into account thermal control issues since ANSYS license expires

  5. Updated Schedule

  6. Hot case, Sun side

  7. Hot case, bottom

  8. Hot case, warmer near Standoffs

  9. Hot case, Isogrids, Standoffs

  10. Hot case, Hot face

  11. Battery Box

  12. Component Box (GPS receiver, ADNCS, etc)

  13. Component Box (Radio)

  14. Flight Computer

  15. IMU

  16. Future Work • Possible satellite attitude effects on temperature extremes • Thermal control methods (fins, coatings, etc) • Component relocations • Mesh refinement for convergence verification

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