Dynamic analysis and experiment methods for a generic space station modelModal vibration tests in conjunction with finite element analysis were used to characterize a generic dynamic model. The model consists of five substructures to simulate the multi-body, low frequency nature of large space structures. Static tests were used to refine the substructure analytical models prior to full assemblage analysis. The effects of a cable suspension system are analyzed using prestressed vibration analysis. Coupling between a cable suspension mode and model bending mode is shown to be influenced by the distance from the model center of gravity to the cable-to-model attachment location. A damping characterization method using noncontacting exciters was used to measure amplitude dependent damping. Frequency and damping measurements in ambient air and at near-vacuum conditions are presented.
Document ID
19860054148
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Belvin, W. K. (NASA Langley Research Center Hampton, VA, United States)
Edighoffer, H. H. (Edighoffer, Inc. Newport News, VA, United States)