Operational Vibration Testing
The Development of a Test Setup for Operational Vibration Testing
B.H.G. Deul (TU Delft - Aerospace Engineering)
J. Bouwmeester – Mentor (TU Delft - Space Systems Egineering)
Leonardo Farconi – Mentor (Deutsches Zentrum für Luft- und Raumfahrt (DLR))
S. Speretta – Graduation committee member (TU Delft - Space Systems Egineering)
D.M.J. Peeters – Graduation committee member (TU Delft - Group Peeters)
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Abstract
Vibration testing is common practice in qualification and acceptance testing of space systems. During these tests, the survivability, as well as the response of a System Under Test (SUT) are characterized in the ultimate expected operating environment. The SUT is excited using a shaker to control the vibration profile in terms of acceleration amplitude, frequency, and power spectral density.
The Institute of Space Systems of the German Aerospace Center (Deutsches Zentrum Für Luft- und Raumfahrt; DLR), investigated the need for a new test setup for operational vibration testing for different Systems Under Test (SUTs). The SUT is to be operational during the vibration test for which a dedicated fixture and support hardware are required. As the combined frequency response of the hardware and SUT is unknown, it is investigated how to distinguish the response of the SUT from that of the setup and which requirements have to be formulated accordingly. This thesis follows from this investigation and describes the process to design, build, and verify a new test setup for operational vibration testing. Ultimately, the setup is validated by a test campaign with multiple SUTs, making it an asset in the development of reliable space systems by DLR.
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File under embargo until 31-12-2027