【摘要】 湿式摩擦副滑摩过程温度场与应力场相互耦合作用,温度场分布受到多种因素影响,其中压力、旋转速度、润滑流量作为湿式摩擦副工作参数对其温度场的影响尤为显著。在理论分析基础上,采用有限元数值模拟分析与实验研究相结合的方法,对摩擦界面温度场时空分布特性进行研究,同时研究界面温度场在摩擦副工作压力、相对转速和润滑流量作用下的变化规律。研究表明:在对偶钢片和摩擦片近外径侧更易出现高温和应力集中区,且对偶钢片相对于摩擦片更易出现温度和应力分布不均匀情况;温度场中高温集中区与应力场中应力集中区相对应,最大温度随着压力增加、相对转速增大、润滑流量减少而显著上升,该结果得到试验结果的验证。更多还原

【Abstract】 Wet friction pair is used in the wet clutch,hydroviscous drive and wet brake,is the key part of the transmission system.The thermal-solid coupling process of wet friction pair is affected by many factors,including pressure,relative rotation speed,lubrication flow.The finite element method and experimental study were used to analyze the spatial and temporal distribution characteristics of temperature field of wet friction interface,based on the theoretical analysis.The temperature field variation of wet friction interface during sliding process was studied based on the change rules of the press,relative rotation speed and lubrication flow.It is shown that the high temperature zone is also the high stress zone,which is distributed along the radius direction of the annular surface.The highest temperature is increased with the press and relative rotation speed increasing,and the lubrication flow decreasing which is verified by the test results.更多还原