Contact analysis of Type17 coupler based on finite element method.pdfVIP

下载本文档

6
0
约2.38万字
约 8页
2017-03-16 发布于天津
举报
版权申诉

Contact analysis of Type17 coupler based on finite element method.pdf

1、有哪些信誉好的足球投注网站（book118）网站文档一经付费（服务费），不意味着购买了该文档的版权，仅供个人/单位学习、研究之用，不得用于商业用途，未经授权，严禁复制、发行、汇编、翻译或者网络传播等，侵权必究。。
2、本站所有内容均由合作方或网友上传，本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺！文档内容仅供研究参考，付费前请自行鉴别。如您付费，意味着您自己接受本站规则且自行承担风险，本站不退款、不进行额外附加服务；查看《如何避免下载的几个坑》。如果您已付费下载过本站文档，您可以点击这里二次下载。
3、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等，请点击“版权申诉”（推荐），也可以打举报电话：400-050-0827(电话支持时间：9:00-18:30)。
4、该文档为VIP文档，如果想要下载，成为VIP会员后，下载免费。
5、成为VIP后，下载本文档将扣除1次下载权益。下载后，不支持退款、换文档。如有疑问请联系我们。
6、成为VIP后，您将拥有八大权益，权益包括：VIP文档下载权益、阅读免打扰、文档格式转换、高级专利检索、专属身份标志、高级客服、多端互通、版权登记。
7、VIP文档为合作方或网友上传，每下载1次，网站将根据用户上传文档的质量评分、类型等，对文档贡献者给予高额补贴、流量扶持。如果你也想贡献VIP文档。上传文档

Contact analysis of Type17 coupler based on finite element method.pdf

Engineering Failure Analysis 77 (2017) 23–30 Contents lists available at ScienceDirect Engineering Failure Analysis journal homepage: /locate/engfailanal Contact analysis of Type17 coupler based on ?nite element method Guangru Hua ?, Yuchen Wang, Wenhao Li Department of Mechanical Engineering, North China Electric Power University, Baoding, PR China article info Article history: Received 7 August 2015 Received in revised form 29 July 2016 Accepted 27 February 2017 Available online 01 March 2017 Keywords: Type17 coupler Fatigue crack Hertz contact Finite element analysis Improved design abstract Fatigue cracks of the hook tongue components in Type17 coupler usually occur on its S-surface under improper working conditions. Stress of S-surface mainly consists of tensile stress, bending stress and contact mechanics on the contact surface in stretch conditions. Finite element method with pure penalty algorithm, which discovers the details of stress distribution on Ssurface contact regions in contact analysis, is proposed. Stress interpolation curves illustrated the effect of contact to stress concentration on S-surface by extracting the surface stress data. Several peaks value of stress caused by surface contact in contact areas coincide with Hertz stress. According to the comparative analysis, an improved design, which avoids line contact under stress condition, made the four main peak value of stress in the original design decreased by 18.1%, 18.2%, 10.0% and 14.0% respectively. The results conduct that the proposed approach is feasible and the improved design is one way for improving stress condition of hook tongue components. ? 2017 Elsevier Ltd. All rights reserved. 1. Introduction Type17 coupler is the latest model of heavy freight trains in China. As a main part of the equipment for connecting rolling stock, the hook tongue components often generated shocks and collisions with surrounding parts when transmitted pulling force and braking force. Researchers had foun