Abstract: For calculating stress of bns body structure, a thin-walled eccentric beam element witch accords with demands is introduced in this paper.The eccentricity existing in truthful structure. is directly calculated in finife element stiffness matrix, so the analysis of bus body structure is more effective, which offer a truthful data for design of bus, The well performance of the thin-walled eccentric element has been proved from a example of a real bus body analysis.

摘要： 针对客车车身结构的受力计算,本文提出了一种更符合实际结构的薄壁偏心梁单元。把实际结构存在的偏心距直接计入梁的有限单元刚度矩阵中,从而更有效地进行车身结构分析,为客车的设计提出更为可信的依据。本文给出一个实体车身的算例,证明了该薄壁偏心梁单元的工作性能是很好的。