摘要
为了考察界面滑移和流体惯性对水润滑弹性金属塑料(EMP)推力轴承润滑性能的影响,从连续性方程和Navier-Stokes方程出发,推导出在圆柱坐标系中考虑了界面滑移和流体惯性影响的雷诺方程,并采用有限差分法对其进行数值计算.计算结果表明:界面滑移现象的出现将降低10%左右的水膜压力和轴承承载能力,而流体惯性力的存在增大了1%左右的水膜压力和轴承承载能力;随转速的增大,界面滑移现象对水膜压力和轴承承载能力的削减程度明显增大,水膜压力和轴承承载能力将降低50%左右.
The water lubrication performance of elastic-metal-plastic(EMP) thrust bearings was affected by liquid inertia force and interfacial slip.The Reynolds equation in the cylindrical coordinates with consideration of liquid inertia force and interfacial slip was derived from continuous equation and Navier-Stokes equation.The numerical computation of Reynolds equation was completed by a finite differential method.The results show that the water film pressure and the load capacity of the elastic-metal-plastic thr...
出处
《中国矿业大学学报》
EI
CAS
CSCD
北大核心
2009年第5期665-669,共5页
Journal of China University of Mining & Technology
基金
国家自然科学基金项目(50775213)
高等学校博士学科点专项科研基金项目(20050290011)
关键词
EMP推力滑动轴承
界面滑移
流体惯性
水润滑
elastic-metal-plastic thrust bearing
interfacial slip
liquid inertia
water lubrication
