PPF/ENVISAT-1 Sine Vibration Test Data Report.

The earth-observation and environmental monitoring satellite PPF/ENVISAT-1 is the largest European satellite up to now. A comprehensive programme of mechanical identification and qualification tests was performed on the spacecraft structural model.The final Sine Vibration test ahd to demonstrate that the satellite structure as well as all payload and quipment satisfactorily withstands the qualification level vibration environment. The tests were performed at ESTEC using both the new hydraulic shaker HYDRA and the electrodynamic multishaker facility. ESTEC and DLR vibration measurement equipments were jointly utilized in order to meet the unusually large instrumentation requirements of the PPF/ENVISAT-1 Sine Vibration test. This report describes DLR activities in the test performance and presents the main results