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
活塞织构对液压减振器动态阻尼特性影响分析
Dynamic Damping Characteristics of Hydraulic Vibration Absorber with Textured of Piston
  
DOI:10.16450/j.cnki.issn.1004?6801.2021.04.017
中文关键词:  液压减振器  矩形织构  摩擦  雷诺方程  阻尼力
英文关键词:hydraulic shock absorber  rectangular texture  friction  Reynolds  damping force
基金项目:天津市技术创新引导专项基金资助项目(20YDTPJC02020);天津市教委科研计划资助项目(2019KJ152)
作者单位
于洋洋1,2,3, 张俊红1,2, 王俊1,2, 孟祥德2,3, 张学玲2,3 (1.天津大学内燃机燃烧学国家重点实验室 天津300072)(2.天津大学仁爱学院 天津301636)(3.天津捷强动力装备股份有限公司 天津300410) 
摘要点击次数: 190
全文下载次数: 184
中文摘要:
      考虑活塞具有矩形织构的摩擦与润滑因素,研究充气式双筒液压减振器动态阻尼特性。建立双筒液压减振器的阻尼特性数学模型和动压润滑方程,对减振器阻尼特性数学方程的复原和压缩行程进行求解,得到减振器上、下腔压力。采用雷诺空化边界条件,将上、下腔压力作为初始压力,对Reynolds方程采用五点差分法进行离散,利用超松弛迭代法(successive over?relaxation,简称SOR)进行求解,得到摩擦阻尼力。分析了活塞运动速度、织构深度、织构宽度、油膜厚度、活塞半径和宽度等因素对摩擦阻尼的影响,以及摩擦因素对减振器动态阻尼特性的影响,研究发现:减振器活塞与缸筒之间的摩擦力和阻尼力随着活塞速度、织构宽度和活塞宽度的增加而增加,随着织构深度的增加而先增加后减小,随着油膜厚度的增加而减小;活塞半径对摩擦力无明显影响。
英文摘要:
      Considering the friction and lubrication factors of the piston with rectangular texture, the dynamic damping characteristics of inflatable dual cylinder hydraulic damper are studied. Initially, the mathematic model of the damping characteristics and the dynamic pressure lubrication equation of the double-tube hydraulic shock absorber is establised. Then, the restore and compression strokes equations are calculated. The upper chamber pressure and the lower chamber pressure are obtained, and the Reynolds cavitation boundary condition is adopted, then the upper cavity pressure and the lower cavity pressure are used as the initial pressure. After that, the Reynolds equation based on five-point difference formula is discreted and the Reynolds equation by successive over-relaxation (SOR) method is calculated. Based on the above calculation, the value of the oil film friction damping force can be obtained. The influence of friction damping on piston speed, texture depth, radius and axial width of piston and other factors is analyzed, and the influence of friction factors on damping characteristics of the damper is studied. It is found that the oil film friction between piston and cylinder increases with the increase of piston velocity, texture width and piston width; as the texture depth increases, it first increases and then decreases; as the oil film thickness increases, it decreases; the piston radius has no obvious effect on the friction; and the corresponding factors affect the dynamic damping characteristics of the shock absorber.
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2672694位访问者 本站今日一共被访问843

技术支持:北京勤云科技发展有限公司