冲击信号频谱与冲击响应谱关系的研究  

Research on the Relationship between Shock Signal Spectrum and Shock Response Spectrum

作　　者：刘洋[1] 陈耀[1] 华栋[1] 高宇 陈柱光 田浩然 LIU Yang;CHEN Yao;HUA Dong;GAO Yu;CHEN Zhu-guang;TIAN Hao-ran(Aerospace science&industry defense technology research and test center,Beijing 100854)

机构地区：[1]航天科工防御技术研究试验中心,北京100854

出　　处：《环境技术》2024年第10期45-52,共8页Environmental Technology

基　　金：二〇一所青年创新基金项目,项目编号210002110nn132。

摘　　要：为探究冲击加速度信号的频谱与冲击响应谱之间的关系,本研究应用 Synthetic time-domain signal程序将有限个傅里叶分量合成加速度时域信号,并用SRS_compute程序计算该信号的冲击响应谱,从而研究冲击加速度信号的各个傅里叶分量对冲击响应谱谱型的影响。研究得到了一些结论,这些结论揭示了傅里叶分量的频率、幅值及相位对冲击响应谱谱型的一些定性和定量的影响机理,同时也分析了冲击响应谱与其各傅里叶分量的冲击响应谱之和的关系。研究所得结论对冲击响应谱试验的调试以及对冲击响应谱试验结果的分析都有一定的指导意义。To investigate the relationship between the spectrum of shock acceleration signals and the shock response spectrum,this study applied the Synthetic time-domain signal program to synthesize a time-domain acceleration signal from a finite number of Fourier components.The SRS_compute program was then utilized to calculate the shock response spectrum of this signal,thereby exploring the impact of individual Fourier components of the shock acceleration signal on the shape of the shock response spectrum.The research yielded conclusions that revealed both qualitative and quantitative influence patterns of the frequency,amplitude,and phase of the Fourier components on the shock response spectrum.Additionally,the relationship between the shock response spectrum and the sum of shock response spectra of its individual Fourier components was analyzed.The conclusions drawn from this study provide valuable guidance for the debugging of shock response spectrum experiments as well as the analysis of their results.

关 键 词：冲击响应谱 冲击信号 频谱 傅里叶级数 SRS 

分 类 号：TJ01[兵器科学与技术—兵器发射理论与技术]