柴油机曲轴改进设计及有限元分析  

Finite element analysis and improvement design of the diesel engine crankshaft

作　　者：闫军朝[1] 李洪昌[1] 胡建平[2] 吴鲁定 

机构地区：[1]常州机电职业技术学院,江苏常州213164 [2]江苏大学现代农业装备与技术教育部重点实验室,江苏镇江212013 [3]江苏常发农业装备股份有限公司,江苏常州213176

出　　处：《中国农机化学报》2015年第2期165-168,共4页Journal of Chinese Agricultural Mechanization

基　　金：江苏省科技支撑计划(农业)资助项目(BE2012381);江苏省农机三新工程资助项目(NJ2003-04)

摘　　要：为优化柴油机曲轴结构参数,对原结构提出了改进方案,对改进结果进行了有限元分析,得到曲轴的应力分布云图,验证了改进效果。结果表明,卸载槽向上移动有利于加强曲轴的强度。卸载槽上移之后,对形状进行改变,卸载效果更明显。本文为曲轴的设计和优化提供了理论依据。To optimize the structural parameters of diesel engine crankshaft, the improvement program for the original structure was proposed. The improved results were analyzed by finite element analysis, and the stress distribution of the crankshaft was obtained, which verified the improved results. The upward movement of the unloading groove would strengthen the crankshaft strength. When changing the shape of the unloading groove after the movement, the unloading effect will be more obvious. It provides a theoretical basis for the design and optimization of the crankshaft.

关 键 词：曲轴 结构改进 有限元分析 

分 类 号：S218.5[农业科学—农业机械化工程]