【摘要】 本文阐述了复杂截面薄壁杆件力学特性参数的计算方法及结构有限元分析程序对这些参数的使用．根据汽车结构特点，薄壁杆件在结构分析中不再把接头部分考虑为刚性约束，提出合理的处理方法．更多还原

【Abstract】 This paper explains a calculating method of mechedcal parameters forthin-walled beam with complex section,and using the parameters in structural analysisprogram.According tO automobile strUctUre,a thin-walled beam is not treated as a rigidrestraint at joints,and reasonable boundary conditions are given.更多还原