Cassini spacecraft force limited vibration testing

摘要

The environmental test program for the Cassini spacecraft included a force-limited vertical-axis random vibration test. The semi-empirical force limit specified in the Cassini spacecraft vibration test procedure was used without any modificationsduring the test. Acceleration responses at critical locations were monitored in the spacecraft vibration test, but only the total axial force was used in the control loop to notch the input acceleration. The flight limit loads were achieved at a number of critical locations on the spacecraft and the instrument responses were similar to those in the component random vibration tests.