低拐點(diǎn)、高G值沖擊譜試驗(yàn)規(guī)范的實(shí)現(xiàn)
REALIZATION OF SHOCK RESPONSE SPECTRUM TEST SPECIFICATION OF LOW KNEE FREQUENCY, HIGH G-VALUE
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摘要: 文章針對(duì)低拐點(diǎn)、高G值沖擊譜試驗(yàn)規(guī)范難以實(shí)現(xiàn)的問(wèn)題,從跌落式諧振板模擬裝置設(shè)計(jì)原理出發(fā),采用有限元方法對(duì)該裝置的關(guān)鍵部件諧振板的固有頻率重新進(jìn)行了分析、設(shè)計(jì)計(jì)算、加工.通過(guò)調(diào)試,實(shí)現(xiàn)了這一試驗(yàn)規(guī)范.