The effect of texture on the shaft surface on the sealing performance of radial lip seals

• DOI: 10.1007/s11433-014-5404-6
• Publication Date: 2014-04-16T03:13:20Z
• Authors: Fei Guo; XiaoHong Jia; Zhi Gao; YuMing Wang
• Keywords: 02 engineering and technology; 0210 nano-technology

On the basis of elastohydrodynamic model, the present study numerically analyzes the effect of various microdimple texture shapes, namely, circular, square, oriented isosceles triangular, on the pumping rate and the friction torque of radial lip seals, and determines the microdimple texture shape that can produce positive pumping rate. The area ratio, depth and shape dimension of a single texture are the most important geometric parameters which influence the tribological performance. According to the selected texture shape, parameter analysis is conducted to determine the optimal combination for the above three parameters. Simultaneously, the simulated performances of radial lip seal with texture on the shaft surface are compared with those of the conventional lip seal without any texture on the shaft surface.