论文标题
在指定冲击响应频谱下合成机械冲击信号的净零位移滤波器的设计和实施
Design and implementation of the net zero displacement filter for the synthesis of a mechanical shock signal under specified shock response spectrum
论文作者
论文摘要
在机械冲击环境下，电子和光学产品很脆弱。设计产品需要使用代表性加速度历史信号通过冲击测试和/或数值模拟来验证。但是，通常以相应的时间历史记录信号的冲击响应频谱（SRS）来给出测量的规格，因此，需要从给定的SRS规范中综合加速时间历史。本文提出了净零位移过滤器和现实的时间历史合成方法。通过缩放相关的字段测量，可以合成加速度历史记录，可以满足净零位移约束，并在$ \ pm $ 3 dB边距内的给定SRS规范。
Electronic and optical products are vulnerable under mechanical shock environment. Designed products need to be validated by shock testing and/or numerical simulation, using representative acceleration-time history signals. However, specifications derived from measurements are normally given in terms of shock response spectrum (SRS) without a corresponding time history signal, and therefore, there is a need to synthesis acceleration-time histories from a given SRS specification. This paper proposed a net zero displacement filter and a realistic time history synthesis method. By scaling a relevant field measurement, acceleration-time histories can be synthesized, which can meet the net zero displacement constrain and a given SRS specification within $\pm$3 dB margin.
