轴毂过盈联接的应力分析和接触边缘效应  

Research on stress analysis and contacting edge effect for interference fit joint of hub

作　　者：魏延刚[1] 

机构地区：[1]大连铁道学院机械工程系,辽宁大连116028

出　　处：《机械设计》2004年第1期36-39,共4页Journal of Machine Design

摘　　要：用弹性力学和有限元方法对轴毂过盈联接进行了详细的分析 ,据此指出了弹性力学方法的弊端和有限元方法的优势。有限元方法不仅可以获得与弹性力学完全一致的理想模型下过盈联接的应力等 ,还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轴毂过盈联接进行设计和校核 ,更符合实际情况 。A detailed analysis on interference fit of hub was carried out by means of elastic mechanics and finite element method, in view of the above, the shortcomings of elastic mechanics method and the advantages of finite element method have been pointed out. Finite element method could not only obtain all the same stress of interference fit joint under ideal model as that obtained with elastic mechanics method, but also could analyze the contacting edge effect-edge stress concentration caused by contact, which could not be solved by elastic mechanics. Owing to considering the existence of stress concentration, to carry out design and check on interference fit joint of hub by the use of finite element method are more tally with the actual situation, thus more reasonable.

关 键 词：轴毂 边缘效应 过盈联接 接触应力 应力集中 弹性力学 有限元 

分 类 号：TH131.7[机械工程—机械制造及自动化]