过盈配合接触边缘效应与应力集中  

Study of Stress Concentration and Edge-Effect of Interference Fit Joints

作　　者：魏延刚[1] 宋亚昕 李健[2] 董思敬 

机构地区：[1]大连铁道学院机械工程系,辽宁大连116028 [2]中国北车集团大同机车有限责任公司,山西大同037038

出　　处：《大连铁道学院学报》2003年第3期4-8,共5页Journal of Dalian Railway Institute

摘　　要：用有限元方法对过盈配合进行了详细的分析,据此指出了弹性力学方法的弊端和有限元方法的优势,有限元方法能够分析弹性力学所不能求解的接触边缘效应——由接触引起的边缘应力集中,由于考虑了应力集中的存在,用有限元分析方法对过盈配合进行设计和校核更符合实际情况,从而更合理。The interference fit joint of shaft and wheel is analysed in detail through Finite Element method, and the shortcoming of elastics method and the advantage of finite element method are mdicated based on the analysis. With FE method, contact edge-effect, the stress concentration caused by contact apexes, can be procured. In this way, the design and the assessment of the interference fit joints with FEA are more practical, hence more reasonable.

关 键 词：过盈配合 弹性力学 有限元方法 接触边缘效应 应力集中 联接可靠性 疲劳寿命 轮对 轴毂 机车车辆 

分 类 号：TG801[金属学及工艺—公差测量技术]