柱塞副油膜温度分布的数值分析  

Numerical Analysis on the Temperature Distribution of Oil-film in Plunger Pair

作　　者：王智慧[1] 苑士华[1] 彭增雄[1] 

机构地区：[1]北京理工大学,车辆传动国家重点实验室,北京100081

出　　处：《汽车工程》2013年第9期781-784,共4页Automotive Engineering

基　　金：国家自然科学基金(51175039);国防基础产品创新项目(VTBP3303)资助

摘　　要：在忽略温度在油膜厚度方向的变化而将温度求解视为二维问题的条件下,采用数值方法研究了轴向柱塞泵马达柱塞副油膜的温度分布规律。假设膜厚分布已知,通过黏温黏压关系方程、雷诺方程和能量方程联合求解,得出柱塞副油膜的温度分布。结果表明,按二维绝热模型计算的温升比传统的解析法更接近实测值,计算出的温度分布规律与实际测试结果一致。By ignoring the temperature change in the direction of oil-film thickness and regarding the calcu- lation of oil-film temperature as a two-dimensional problem, the temperature distribution of oil-film in the plunger pair of an axial plunger pump is studied with numerical method. With the distribution of oil-film thickness given, the oil-film temperature distribution of plunger pair is obtained by the joint-solution of viscosity-temperature and vis- cosity-pressure relations, Reynolds equation and energy equation. The results show that the temperature rise calcu- lated with two-dimensional adiabatic model is closer to tested value than traditional analytic method and the calculat- ed temperature distribution well agrees to test results.

关 键 词：柱塞副 温度分布 绝热条件 

分 类 号：TH137.51[机械工程—机械制造及自动化]