基于并联空气弹簧结构的卫星运输减振系统设计及振动特性分析

With development of aerospace science and technology and increasing in performance requirements, the reliability of satellites is required to be higher and higher, and stricter requirements for vibration during transportation to meet are also needed to make the current vibration reduction system be difficult to satisfy future transportation requirements. Here, aiming at this situation, a satellite packaging transportation vibration reduction system was designed based on parallel air spring structure, and its vibration characteristics were analyzed. Firstly, a parallel air spring vibration reduction system scheme was proposed according to structure and vibration reduction requirements of satellite transport box. Then, based on the measured parameters, the multi-body dynamic simulation model of the parallel air spring vibration reduction system was established, and the feasibility of the proposed scheme was verified. The vibration reduction efficiency and safety of the system under different transportation conditions were further studied. Finally, the vibration reduction system was constructed to perform real vehicle transportation tests under different working conditions. The results showed that the vibration reduction system based on air spring parallel structure has better vibration reduction efficiency in actual vehicle transportation and can ensure the safety of the equipment during transportation; the study results can provide a reference for designing large precision equipment transportation's vibration reduction system.