传动装置密封环传热性能的建模研究  

Analytical Method of Heat Transfer for Sealing Ring in Transmission of Vehicle

作　　者：宫燃[1] 车华军[1] 张学荣[1] 

机构地区：[1]江苏大学汽车与交通工程学院,江苏镇江212013

出　　处：《润滑与密封》2011年第9期55-58,共4页Lubrication Engineering

基　　金：国家自然科学基金项目(51005104);江苏大学校基金项目(10JDG033)

摘　　要：根据传动装置密封环的工作特点,确定密封环传热规律。以密封环、油膜和密封介质组成的传热系统为计算模型,以摩擦热为热源,研究密封环的传热特性,得到密封环导热计算的热边界条件及其计算方法,推导密封环温度分布的计算公式,通过解析建模与求解计算得到密封环的温度分布规律,研究诸因素对密封环传热性能的影响。结果表明,工作压力和转速的增加,密封环温度都呈线性增长,而内外径的温度增量却不相同。According to the working conditions of sealing rings,the transfer rule in the sealing system was investigated. This heat transfer system consists of the ring, the fluid film and the s＇ealed medium. Selecting reasonably boundary condi- tions exerted on seal and simulating the actual operations of transmission, thermal responses such as temperature field and their variable curves with pressure and rotating speed were obtained. The temperature distribution is related to the the ma- terial parameters of the sealing rings, rotational speed and pressure. The temperature of the sealing ring increases both with the increase of the rotational speed and pressrue, but the temperature increments of the inner and outer diameters differ widely.

关 键 词：密封环 传热 热边界条件 温度场 

分 类 号：TB42[一般工业技术]