冲击响应谱试验波形发生器的残余应力释放特性  

Residual Stress Release Characteristics of Waveform Generator in Shock Response Spectrum Test

作　　者：周彬 朱晓天 种峰 李鑫 钱瑜 ZHOU bin;ZHU Xiao-tian;CHONG Feng;LI Xin;QIAN Yu(Shanghai Institute of Aerospace Control Technology,Shanghai 201109)

机构地区：[1]上海航天控制技术研究所,上海201109

出　　处：《环境技术》2024年第4期23-29,共7页Environmental Technology

摘　　要：针对冲击试验中试件连续冲击会使曲线产生较大偏差的现象,对冲击响应台的波形发生器的应力释放行为进行了有限元分析,并对波形发生器进行了冲击试验,改变波形发生器的静置时间,对比不同静置时间下的冲击波形,通过热处理的方式,加快波形发生器的形变回复,进而提高冲击试验的试验精度。研究可为今后对冲击响应谱试验波形发生器的研究和应用的参考提供了理论基础。In response to the phenomenon of significant deviation caused by continuous impact of specimens in impact tests,finite element analysis was conducted on the stress release behavior of the waveform generator of the impact response table.The waveform generator was subjected to impact tests by changing its static time and comparing the impact waveforms under different static times.Through heat treatment,the deformation recovery of the waveform generator was accelerated,thereby improving the experimental accuracy of the impact test.The research provides a theoretical basis for the future research and application of waveform generators in shock response spectrum tests.

关 键 词：环境试验 冲击试验 波形发生器 冲击响应谱 

分 类 号：V216.55[航空宇航科学与技术—航空宇航推进理论与工程]