Structural Design and Static Performance Verification of Semi-active Vibration Isolation Device for PAF

doi:10.16356/j.1005-1120.2023.S2.004

Transactions of Nanjing University of Aeronautics & Astronautics

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Structural Design and Static Performance Verification of Semi-active Vibration Isolation Device for PAF

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Abstract:

The vibration environment during satellite launch is very harsh， and the vibration excitation spectrum from all directions is extremely wide. The satellite is easily damaged， leading to the failure of launch mission. The whole-spacecraft vibration isolation is achieved by modifying the structure of the payload attach fitting （PAF）， or placing a vibration isolation device between the original adapter and the star-arrow connection surface. This paper improves the traditional PAF， and a semi-active vibration isolation system based on electromagnetic mechanics is designed. Maxwell software is used to simulate the static performance of the active vibration isolation module， and an experimental system is built to verify the simulation results. It is preliminarily confirmed that the designed device can meet the vibration isolation requirements.

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This work was supported in part by the Fundamental Research Funds for the Central Universities （No.NT2022026） and the National Natural Science Foundation of China （No.52075242）.

Clc Number:

V475.1