The status of various feasibility studies on improved spacecraft dynamic qualification concepts using hydraulic multi-axial vibration simulators is presented. Dynamic mechanical loads in the low frequency range determine to a large extent the design of the primary and partially the secondary structures of most present day spacecraft. A dynamic qualification concept based on an experimental flight load simulation requires a multi-axis transient test approach, which cannot be offered current vibration test specifications. Vibration tests on single-axis electrodynamic shakers, flight load simulation on multi-axis hydraulic vibration simulators, and the further development of multi-axis hydraulic test stands are described. The possible prospects of the approach to dynamic structural verification are discussed.
Strukturdynamische Qualifikation von Raumfahrzeugen (Structural Dynamics Qualification of Spacecraft)
1990
16 pages
Report
No indication
English
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