Details

Autor(en) / Beteiligte

• Lin, C. S
• Cole, T. R

Titel

Dynamic Model for Global Positioning System Block IIR Space Vehicle

Ist Teil von

• Journal of spacecraft and rockets, 1997-05, Vol.34 (3), p.354-359

Ort / Verlag

Reston: American Institute of Aeronautics and Astronautics

Erscheinungsjahr

1997

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The development of the dynamic model for the GPS Block IIR space vehicle is described. A mode survey test was conducted for each of the spacecraft and the solar array assemblies to obtain a test-derived dynamic model. In the spacecraft mode survey, the attachment clampband was found not rigid enough to produce fixed-base normal modes. An analytical technique was developed to remove the effects of the clampband flexibility from the measured spacecraft modes. The test-derived spacecraft and solar array assembly models were coupled using the component modal synthesis method to form the system dynamic model to be used in the coupled-system loads analysis. The spacecraft finite element model was adjusted to correlate with the mode test data to improve the accuracy of the loads-transformation matrix. (Author)