柴油机曲轴的随机应力分析  

Stochastic Stress Analysis of Diesel Crankshaft

作　　者：刘朋宏[1] 王明武[1] 

机构地区：[1]上海交通大学动力与能源工程学院

出　　处：《上海交通大学学报》1999年第7期877-879,共3页Journal of Shanghai Jiaotong University

摘　　要：针对曲轴的结构形式和受力状况，在三维边界元的基础上，提出了三维随机边界元法的数学模型，编写了计算程序．考虑了材料物性和载荷的随机性，对曲轴的应力进行了统计分析，算例所得结果可靠，并为曲轴的改进设计提供了依据．According to the structure and load condition of diesel crankshaft, a three dimensional stochastic boundary element model was proposed on the basis of three dimensional boundary element method and stochastic theory. A program was compiled to carry out the crankshaft calculation. In consideratio n of the randomness of material property and loads, stochastic stress analy sis and sensitivity analysis were performed. The results show that the calculati on precision is high, and the method provides a scientific basis for crankshaft reliability analysis and design.

关 键 词：柴油机 曲轴 应力分析 

分 类 号：TK423.31[动力工程及工程热物理—动力机械及工程]