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以某铝合金厢式半挂车为分析对象,采用有限元法对厢式半挂车的车架强度和厢体刚度进行分析。结果表明:在水平弯曲和扭转工况下,车架应力低于材料的屈服极限,具有较强抵抗破坏的能力。使得厢体的永久变形满足法规要求,刚度满足设计需求,保证半挂车结构的使用可靠性。 相似文献
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Modal Correlation Based Analysis on Dynamic Characters of a Commercial Semi-Trailer's Chassis Frames
In order to evaluate two different schemes' structural dynamic characters, dynamic response analysis of a commercial truck's main chassis frames is carried out. On the basis of correlation study between the tested and calculated modal results, the assembled frames' finite element analysis (FEA) models with sufficient precision are built up. Random response analysis in frequency domain is carried out with these FEA models, RMS values of yon Mises and main principle stresses of these two frames are obtained. It shows that the analysis resuits of the distributing tendency and concrete value ranges are coincident very well with test results. And from the results, it could be concluded that frames of scheme A endures relative better loading conditions and should be adopted as the final scheme. 相似文献
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根据某半挂车车架的结构特点和使用工况,在Hypermesh建立了半挂车车架的有限元模型,计算了满载匀速、满载转弯、满载爬坡3种工况下车架应力情况并进行了车架的固有模态特性分析,根据车架第一横梁与纵梁连接处的应力集中问题,提出了改善应力集中的方法,为车架的结构优化设计提供理论依据。 相似文献
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