载荷对线接触热弹流温度场的影响  

The Effects of Loads on Temperature Field of the Line Contact Thermal EHL

作　　者：刘德良[1] 孙昂[1] 徐久军[1] 

机构地区：[1]大连海事大学交通与物流工程学院,辽宁大连116022

出　　处：《机床与液压》2012年第1期134-135,142,共3页Machine Tool & Hydraulics

摘　　要：在弹流动力润滑中,尤其是在重载的情况下,润滑剂呈现出强烈的非牛顿流体的流变特性,添加剂以及合成润滑剂的使用,也会导致润滑油呈现非牛顿性质,从而使得润滑剂的流变行为成为润滑设计中必须考虑的重要因素;对于高速或重载的情况,众多的研究结果表明:热效应是明显的、不可忽略的。选用Ree-Eyring模型,通过联立求解雷诺方程、弹性变形方程、能量方程而得到线接触非牛顿流体热弹流的温度场,分析了不同载荷下的温升变化,从而找出油膜内温度场随载荷的变化规律。In EHL, especially under heavy loads conditions, the strong rheology characteristic of non-Newtonian lubricant is presented, the appliance of addition agent and synthetic lubricating oil also make the lubricant present non-Newtonian characteristic. So, the rheology behavior of lubricant is a key factor must be taken into account in lubrication design. As to the conditions of heavy loads and high speed, numerous research results show： the effects of temperature are evident and can not be ignored. The temperature field of line contact non-Newtonian thermal EHL was obtained by resolving the Reynolds equation, elastic deformation equation and energy equations with Ree-Eyring model. By analyzing the transformations of temperature under different loads, the principle of oil temperature field transformation is found.

关 键 词：线接触热弹流 非牛顿流体 温度场 

分 类 号：TH137[机械工程—机械制造及自动化]