Optics and Precision Engineering, Volume. 32, Issue 5, 694(2024)
Integrated platform for micro-vibration simulation and active-passive vibration isolation
To meet the stringent micro-vibration experiment requirements for remote sensing satellites on the ground, a comprehensive experimental platform has been developed. This platform integrates micro⁃vibration simulation with both active and passive vibration isolation capabilities. It evaluates the active and passive vibration isolation effectiveness and the micro⁃vibration simulation's impact separately. Passive isolation is achieved through air-floating support, while active isolation employs an active damping technique. A control strategy based on the linear system's frequency response function is utilized for micro-vibration simulation. The results indicate that the platform's first six modal frequencies are below 10 Hz. The passive isolation system effectively reduces ground micro-vibrations within the 10-200 Hz range, and the active isolation system attenuates the vibration isolation system's resonance peak by 14 dB. The micro-vibration simulation can accurately produce single and multi-frequency disturbances that closely mimic actual satellite conditions. During specific spectrum simulation experiments, the maximum amplitude error was 5.90%, which falls within the acceptable error margin. This versatile integrated experimental platform fulfills all the experimental requirements.
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Chao QIN, Honghai ZHOU, Shuai HE, Zhenbang XU, He ZHU. Integrated platform for micro-vibration simulation and active-passive vibration isolation[J]. Optics and Precision Engineering, 2024, 32(5): 694
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Received: Aug. 9, 2023
Accepted: --
Published Online: Apr. 2, 2024
The Author Email: XU Zhenbang (xuzhenbang@ciomp.ac.cn)