航天器非火工分离装置接触建模与仿真分析

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振动与冲击 ›› 2023, Vol. 42 ›› Issue (6) : 298-306.

论文

航天器非火工分离装置接触建模与仿真分析

李雪梅1，王萌1,2，刘彦豪1，潘怡1，孙蓓蓓1

作者信息 +

Contact modeling and simulation analysis on the non-explosive separation device of a spacecraft

LI Xuemei1， WANG Meng1,2， LIU Yanhao1， PAN Yi1， SUN Beibei1

Author information +

文章历史 +

摘要

为保证航天器发射过程中分离装置的可靠连接与分离，对某型非火工分离装置的接触动力学及分离释放过程进行研究。该非火工分离装置采用记忆合金弹簧作为驱动源，分析接触碰撞模型并根据接触理论计算接触参数，建立其动力学仿真模型并进行仿真计算，结果显示分离冲击不超过300g，与试验结果相符。研究分离装置中记忆合金弹簧回复时间、预紧力及弹簧刚度等因素对分离过程的影响，结果表明回复时间和预紧力对分离装置的冲击响应的影响效果相反，应综合考虑取值，弹簧参数中分离顶推弹簧刚度和螺栓弹簧刚度对分离冲击的影响最大。

Abstract

To ensure the reliable connection and separation of the separation device in the launching process of spacecraft, the contact dynamics and separation process of a certain type of non-explosive separation device was researched. The non-explosive separation device used shape memory alloy spring as the driving source. The contact model was analyzed and the contact parameters was determined according to the contact theory. The dynamic simulation model was established and simulation was calculated. The simulation results show that the separation shock is less than 300g, which is consistent with experimental results. The recovery time of SMA spring in separation device, the preload force and spring stiffness were researched for the influence of the separation process. The results show that the recovery time and preload force have opposite effects on the separation device of shock response, the values must be taken into account comprehensively. Among the spring parameters, the stiffness of the segment separation spring and the bolt separation spring have the greatest influence on the separation shock.

导出引用

李雪梅1，王萌1,2，刘彦豪1，潘怡1，孙蓓蓓1. 航天器非火工分离装置接触建模与仿真分析[J]. 振动与冲击, 2023, 42(6): 298-306

LI Xuemei1， WANG Meng1,2， LIU Yanhao1， PAN Yi1， SUN Beibei1. Contact modeling and simulation analysis on the non-explosive separation device of a spacecraft[J]. Journal of Vibration and Shock, 2023, 42(6): 298-306

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