摘要
目的通过机体原结构方案的有限元分析和试验对比，对６１３５柴油机机体有限元模型进行改进，为机体结构改进提供合理的有限元模型．方法采用静载荷下刚度试验和有限元分析对比结果改进原始结构有限元模型，以改进后的单元分布形式和模型简化程度为依据，建立机体改进方案的计算模型．结果对原始结构方案进行多次模型的改进和计算，得到与试验结果相符的有限元模型，并在此基础上进行分析．结论改进后新方案的试验结果表明，采用对比方法建立的有限元模型精确度满足工程要求．
Aim To improve the FEM model of the original crankcase of diesel engine 6135 and build the FEM model of the new crankcase by comparing the analysis results of the original structure with its test data Method Comparing the FEM analysis with the static stiffness test, the FEM model of the original design was modified Based on this improved model, the FEM model of new design with the same mesh type and structural simplification was built Results By improving, the FEM model according with test was obtained The models of original design during improving and the model of the new design were analysed Conclusion The test results of the new design prove that the precision of the FEM model built by this comparing method meets the needs of engineering
出处
《北京理工大学学报》
EI
CAS
CSCD
1998年第3期307-310,共4页
Transactions of Beijing Institute of Technology
关键词
柴油机
有限元
汽车
刚度
结构分析
diesel engine
finite element method
structural analysis
