【作者】 王得刚； 赵春雨； 闻邦椿；

【机构】 东北大学机械工程与自动化学院；

【摘要】 应用先进的有限元前后处理软件HyperMesh,采用全新的建模方法,对车身结构进行有限元建模,用MSC.Nastran软件对模型求解,然后用HyperMesh对计算结果进行后处理分析。通过对车身的结构进行有限元模态分析,得到在低频范围内与试验结果基本一致的模态频率和振型,有利于控制车身的固有特性,从而可以对车身设计方案进行全面的评价和改进。更多还原

【Abstract】 Adopted a new modeling method, the finite element modal of car-body is established by HyperMesh, which is an advanced preprocess and postprocess software to finite element. The modal is calculated by MSC.Nastran software. Calculated result is post-progressed by HyperMesh. The modal frequency and mode shape can be gained through the modal analysis of the car-body. The result using FEM is consistent with test result in low frequencies, so it can help controlling the inherent performance of the car-body. Consequently, the result can be used in estimating and improving the design project of the car-body.更多还原