摘要
为了改善轴向柱塞泵滑靴副的润滑性能,利用仿生学原理,在斜盘上构建倾斜椭圆形微坑织构.通过微坑产生的动压效应和上游泵送效应,以期能够优化滑靴副的摩擦性能并减少泄漏量.基于CFD方法开展了具有椭圆形微坑织构滑靴副的建模与润滑性能研究,揭示了不同润滑介质黏度和转速下柱塞泵滑靴副的承载能力、泄漏量和摩擦系数随微坑倾斜角度的变化规律.研究结果表明:通过在斜盘面上建立无倾斜椭圆形微坑,能明显提高滑靴副的承载能力,并降低摩擦系数,但会导致泄漏量增大;而在此基础上,通过将椭圆形微坑相对于其滑动方向旋转一定角度,滑靴副的承载能力和摩擦系数不会明显变化,但可以显著减小润滑介质泄漏量.
In order to improve the lubrication performance of the slipper/swash plate pair on axial piston pump,the elliptical micro-pits texture was constructed on the swash plate based on the bionics principle.The effect of dynamic pressure and upstream pumping were generated by the elliptical micro-pits,and it can be used to optimize the friction performance of the slipper/swash plate pair and reduce the leakage.Based on the CFD method,the modeling and lubrication performance of the slipper/swash plate pair were carried out with the elliptical micro-pit texture.It was revealed that the carrying capacity,leakage and friction coefficient of the slipper/swash plate pair changed with variation of the tilt angle of micro-pit under different speed and different viscosity of the lubricant.The results showed that the carrying capacity of the slipper/swash plate pair was significantly improved,and the friction coefficient decreased,but the leakage increased after establishing a non-inclined elliptical micro-pit on the swash plate.Spinning a certain angle with respect to its sliding direction reduced the amount of leakage mostly while the carrying capacity and friction coefficient of the slipper/swash plate pair remained stable.
作者
赵波
王志超
杨理华
刘晓俊
张保成
ZHAO Bo;WANG Zhichao;YANG Lihua;LIU Xiaojun;ZHANG Baocheng(Department of Mechatronic Engineering,College of Engineering,Ocean University of China,Shandong Qingdao 266000,China;Power Control Department,Navy Submarine Academy,Shandong Qingdao 266199,China)
出处
《摩擦学学报》
EI
CAS
CSCD
北大核心
2020年第4期531-537,共7页
Tribology
基金
国家自然科学基金(51909254)
中央高校基础研究基金(201965006,201912006)
青岛市创业创新领军人才计划项目(18-1-2-20-zhc)资助。
关键词
滑靴副
上游泵送
流体动压润滑
织构
倾斜椭圆微坑
slipper/swash-plate pair
upstream pumping
fluid dynamic lubrication
texture
inclined-ellipse-dimple
