Shock Response Spectrum Analysis and Application of On-Board Equipment

Aimed at the wicked shock environment of combat vehicle,the shock response spectrum analysis method and its application in structure anti-shock design were researched.The calculation,statistical estimation and time-history waveform of shock response spectrum were studied.The re-ference shock response spectrum was calculated based on a group of test shocking signals during the process of combat vehicle firing projectile.The result indicated that the natural frequency of the equipment can’t be the dangerous frequencies of 1 140Hz,1 522Hz etc.The natural frequency of the shock isolation system should be less than 300Hz,and they can’t be the nearby frequencies of 35Hz,84Hz and so on.When shock response spectrum was used as basic parameter in shock test,the problem existed in the low frequency overimpact test when using specified pulsed waveform was solved effectively,and this has great application value in engineering.