摘要
以环-块线接触摩擦副为研究对象,借助显式动力学有限元数值模拟分析技术,采用热力耦合分析方法,考察油气润滑条件下的冷却和润滑行为对线接触特性的影响情况。结果表明:在油气润滑条件下,增大压缩空气流速可以减轻摩擦副局部过高温度、降低温升,并减小接触应力;当空气流速增大到一定程度后,空气流速的变化对温升和应力大小影响逐渐减小。
With the help of explicit dynamic finite element numerical simulation analysis tool,along with thermo-mechanical coupling analysis method,the influences of lubricating and cooling behavior on line contact characteristic under oil-air lubrication were studied by the object of ring-block friction pair.The result shows that,increasing air flow rate under oil-air lubrication can improve local high temperature,reduce the rise in friction temperature and contact stress to a lesser degree of the friction pair;When the air flow rate increases to a certain extent,the influences of the change of air flow rate on temperature and stress is less.
出处
《机械工程与自动化》
2016年第4期18-20,共3页
Mechanical Engineering & Automation
基金
安徽省高校省级科学研究项目(KJ2013Z019)
浙江理工大学浙江省流体传输技术研究重点实验室开放基金资助项目(ZSTUZSL2012A007)
关键词
油气润滑
线接触
摩擦副
动态接触特性
oil-air lubrication
line contact
friction pair
dynamic contact performance
