多点同步冲击响应谱试验技术初步研究

Research on Multi-Points Shock Response Spectrum Test Technique

爆炸分离冲击环境是导致航天器产品发生故障的主要原因之一,航天器爆炸分离时以多个爆炸螺栓或切割锁点爆的方式进行分离,冲击源具有多源、同步的特点。现阶段试验室模拟爆炸分离冲击环境多以水平冲击台或垂直冲击台的方式开展,存在冲击量级不均匀及应力衰减问题。本文提出一种多点同步冲击模式,对多点同步冲击试验技术进行了探索,并对多点冲击模式下的冲击响应进行了初步分析。

Pyroshock environment is one of the most important reasons that causing spacecraft failures.the separation of spacecraft often use few explosive bolts,and the shock has features of multi-sources and synchronization.To simulatethe pyroshock environment,the horizontal and vertical shock tesing machines are usually usedat present,but have the problems of values uneven and decay.In this paper,a multiple shocktechnique is designed and used,and the shock responses are analysed.