摘要
以客车车身结构为研究对象,介绍了随机响应的理论基础,讨论了路面不平度的功率谱密度在进行数值计算时的采样特性,对模型进行解耦并施加路面不平度载荷;最后,对随机响应结果进行分析,并用试验进行验证。实例计算表明,随机响应分析对改善车身结构强度具有指导意义。
Described the theory of random response base on bus structure. The sampling characteristics of the road irregularity of Power Spectral Density（PSD） during numerical computation is discussed. The model is decoupled and the road irregularity load is applied. Finally, the result of random response is analyzed and verified by test. The example indicated that the random response analysis has instructive meaning in improving the strength of bus.
出处
《现代制造工程》
CSCD
北大核心
2012年第5期50-54,共5页
Modern Manufacturing Engineering
关键词
车身结构
随机响应
路面不平度
body structure
random response analysis
road irregularity
