多源随机激励系统的参数灵敏度分析

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振动与冲击 ›› 2012, Vol. 31 ›› Issue (1) : 82-85.

论文

多源随机激励系统的参数灵敏度分析

唐帆1; 王锡平1; 朱文海1; 周慎杰2

作者信息 +

System parameter sensitivity analysis under multi-source random excitation

Tang Fan1; Wang Xi-ping1; Zhu Wen-hai1; Zhou Shen-jie2

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文章历史 +

摘要

采用虚拟激励法，多次利用状态空间解耦、Kronecker代数及矩阵微分理论等，推导出多源随机激励下响应均方根的参数灵敏度表达式，并将其应用于汽车平顺性分析。根据理论计算的灵敏度大小及工程实际要求，选取优化变量，对轻型货车整车模型进行了平顺性优化

Abstract

Parameter sensitivity expression excited by random excitation were presented with the theory of decoupled in state space, Kronecker algebra, matrix differential and pseudo-excitation method. According to the parameter sensitivity caculation result and requirment of actual engineering, the ride comfort of ligth-duty truck model was optimized with MATLAB. Meanwhile the optimization included linear and nonlinear constraint condition.

导出引用

唐帆;王锡平;朱文海;周慎杰. 多源随机激励系统的参数灵敏度分析[J]. 振动与冲击, 2012, 31(1): 82-85

Tang Fan;Wang Xi-ping;Zhu Wen-hai;Zhou Shen-jie. System parameter sensitivity analysis under multi-source random excitation[J]. Journal of Vibration and Shock, 2012, 31(1): 82-85