基于CFD的离合器回油过程仿真研究

Simulation Research on Clutch Oil Return Process Based on CFD

文章采用CFD技术对某离合器进行回油过程液压缸压力及活塞位移进行分析,并对比了活塞摩擦力和油温对回油过程的影响,分析结果表明:活塞摩擦力增大会导致液压缸内压力降低,但对活塞的关闭时间影响较小;低温下由于油的粘度较大,对离合器活塞关闭时间会有较大影响。通过CFD分析可以为离合器回油参数设计提供指导。

Using CFD technology to analyze the hydraulic cylinder pressure and piston displacement of a clutch during unloading process, and compare the impact of piston friction and oil temperature on the unloading process. The analysis results show that the increase of piston friction will cause the pressure in the hydraulic cylinder to decrease. However, it has little effect on the closing time of the piston. Because of the high viscosity of the oil at low temperature, it will have a great influence on the closing time of the clutch piston. CFD analysis can provide guidance for the design of clutch unloading parameters.