首页  |  期刊简介  |  期刊荣誉  |  编委会  |  现任主编  |  投稿指南  |  下载中心  |  期刊征订
中文核心期刊
Ei Compendex收录期刊
中国科学引文数据库来源期刊
中文科技期刊数据库收录期刊
国际刊号:1004-6801
国内刊号:32-1361/V
用户登录
  E-mail:  
  密  码:  
  作者 审稿  
  编辑 读者  
期刊向导
联系方式
  • 主管:中华人民共和国工业和信息化部
  • 主办:南京航空航天大学
  •           全国高校机械工程测试技术研究会
  • 国际刊号:1004-6801
  • 国内刊号:32-1361/V
  • 地址:南京市御道街29号
  • 电话:025-8489 3332
  • 传真:025-8489 3332
  • E-mail:qchen@nuaa.edu.cn
  • 邮编:210016
考虑局部故障边缘形态的球轴承振动特征
An Investigation of Vibration Characteristics of a Ball Bearing with a Localized Defect Considering Different Edge Shapes
  
DOI:10.16450/j.cnki.issn.1004-6801.2017.04.027
中文关键词:  球轴承; 局部故障; 边缘形态; 时变激励
英文关键词:ball bearing; localized defect; defect edge shape; time-varying excitation
基金项目:国家自然科学基金资助项目(51605051,51475053);中央高校基本科研业务费专项资金资助项目(106112015CDJXY110007)
作者单位
刘静1,2,师志峰1 ,邵毅敏1 (1.重庆大学机械传动国家重点实验室,重庆400044)(2.重庆大学机械工程学院,重庆400044) 
摘要点击次数: 105
全文下载次数: 57
中文摘要:
      在分析球与不同边缘形态的局部故障之间接触关系的基础上,根据赫兹接触理论建立了球与局部故障光滑圆柱型边缘之间的接触刚度模型,以及球进入故障区域时的时变位移激励模型。考虑弹性流体动力润滑油膜的影响,提出时变冲击激励耦合的球轴承圆弧边缘型局部故障动力学模型。该模型考虑了故障边缘形态特征变化引起的球进入故障时的时变额外位移激励,以及球与故障边缘之间的时变接触刚度。研究滚道表面圆弧型边缘型局部故障激励下的球轴承振动响应特征,并分析故障边缘形态变化对球轴承振动响应特征的影响规律,解决了尖锐边缘型局部故障模型无法描述其边缘形态变化的问题,为获得可靠的局部故障球轴承的动力学响应特征提供新的手段和方法,也为球轴承局部故障的准确识别与定量诊断提供一定的理论依据。
英文摘要:
      According to the contact relationship between the ball and localized defect with different shapes, a contact stiffness model for the ball-defect edge contact based on Hertzian contact theory is presented, as well as the time-varying displacement model in the defect zone. A new dynamic model coupling time-varying excitations for a lubricated ball bearing with a localized defect on its races is proposed considering the lubricating film oil. This model can formulate the time-varying excitations including the time-varying displacement excitation when the ball passing over the defect zone and the time-varying contact stiffness between the ball and the defect cylindrical edges. The proposed model is applied to investigate the effect of the defect edge shape on the vibration characteristics of the ball bearing. The numerical results show that the proposed model can describe the effect of the changes in the edge shape of the defect on the vibration characteristics of the ball bearing, which cannot be formulated by the previous sharp defect edge models in the literature. It seems that the proposed method can provide some new approach for predicting accurate vibration characteristics of the ball bearing with a localized defect on its races. It also can provide some theoretical foundations for accurate ball bearing fault defection and diagnosis.
查看全文  查看/发表评论  下载PDF阅读器
关闭

Copyright @2010-2015《振动、测试与诊断》

地址:南京市御道街29号        邮编:210016

电话:025-8489 3332      传真:025-8489 3332       E-mail:qchen@nuaa.edu.cn

您是本站第1057546位访问者 本站今日一共被访问267

技术支持:北京勤云科技发展有限公司