1.上海交通大学 机械系统与振动国家重点实验室，上海 200240;2.上海空间推进研究所，上海 201112
1.The State Key Laboratory of Mechanical System and Vibration， Shanghai JiaoTong University， Shanghai 200240，China;2.Shanghai Institute of Space Propulsion，Shanghai 201112，China
Electromagnetic self-locking valves are widely used in spacecraft， such as satellites， launch vehicles， and spaceship. In strong impact environments， such as engine ignition， explosion of pyrotechnic devices， and separation of rockets， locking failures of self-locking valves may occur， which can affect the safe operation of the spacecraft. Aiming at the locking reliability of the electromagnetic self-locking valve under impact load， the paper studied the locking failure mechanism of the self-locking valve. A finite element model for the tooling and self-locking valve was established， the correctness of which was verified through modal tests. Based on the modal superposition theory， the shock response characteristics of the self-locking valve were studied， and the locking state of valve spool was judged according to the shock response results and the energy analysis of valve spool. In order to verify the accuracy of the analysis results， a pendulum impact platform was used to carry out impact tests. The locking state of the valve spool obtained was in good agreement with the theoretical results， indicating the effectiveness of the analysis method. The research in this article can provide theoretical foundation and technical support for the anti-shock design of electromagnetic self-locking valves.
鞠震昊,闫寒,尤罡,张文明.冲击环境下航天器电磁自锁阀锁闭特性研究[J].动力学与控制学报,2021,19(6):89~96; JU Zhen-hao, YAN Han, YOU Gang, ZHANG Wen-ming. RESEARCH ON LOCKING CHARACTERISTICS OF SPACECRAFT ELECTROMAGNETIC SELF-LOCKING VALVE IN SHOCK ENVIRONMENT[J]. Journal of Dynamics and Control,2021,19(6):89-96.复制