箱体动力响应分析——数值计算与试验研究相结合

DYNAMIC RESPONSE ANALYSIS OF CASE——COMBINING NUMERICAL CALCULATION WITH TEST RESEARCH

以柴油机缸体为例进行了动力响应分析。首先采用两种分析法相结合的研究方法建立缸体的离散化数学模型,然后据此运用振型迭加原理计算动力响应,取得了满意的结果,为缸体改进设计提供了可靠依据。

Basic principles of numerical calculation by Finite Element .Method and Test Modal Analysis are outlined, and take cylinder of diesel for example of dynamic analysis for case.The discrete mathematical model of system is established by means of combining both analysis methods.Then according to this model, the dynamic damping response is calculated by use of mode supper-position principle, and satisfactory result obtained. The reliable data are pro-Tided for modification of cylinder.