大型挂载起吊系统特种螺栓强度分析  

Strength analysis for special bolt of large-scale hanger system

作　　者：唐倩[1] 裴林清[1] 陆波[1] 

机构地区：[1]重庆大学机械传动国家重点实验室,重庆400030

出　　处：《重庆大学学报（自然科学版）》2009年第9期1028-1031,共4页Journal of Chongqing University

基　　金：教育部科学技术研究重点资助项目(108107);重庆市科技攻关项目(CSTC2008AB3057;CSTC2006AA3010)

摘　　要：通过建立挂载起吊系统力学模型,并采用有限元分析方法对系统进行计算,得出特种螺栓应力分布以及系统各部件之间接触面积关系。分析结果表明螺栓强度满足使用要求,螺栓预紧力对螺栓强度影响较大,圆筒重力载荷对螺栓强度影响较小,但螺栓存在严重的偏载现象。此外,对挂载螺栓进行分组起吊实验,观察各组螺栓的变形情况。结果表明,仿真结果与实验结果吻合较好。By establishing the dynamic model and adopting the finite element method, the special bolt＇s stress distribution and the contact areas between different components of the system are obtained. According to the analysis result, the bolt＇s strength meets the operating requirement, bolt pre-tightening force has a great influence to the bolt strength, and gravity loads of cylinder cannot produce considerable changes of bolts, however, the phenomenon of deviation load is serious. The bolts experiment based on group of bolts is conducted to show degree of deformation. The experiment results are agreed well with the analysis results.

关 键 词：螺栓联接 特种螺栓 预紧力 强度分析 有限元 

分 类 号：TH123[机械工程—机械设计及理论]