A Lubrication Analysis in Swash Plate Type Hydraulic Piston Pump : Effect of Piston Reciprocating Motion

사판식 유압 피스톤 펌프의 윤활해석 : 피스톤 왕복운동의 영향

A numerical analysis between the piston and cylinder in swash plate type hydraulic piston pumps under reciprocating motion is presented. A finite difference method and the Newton-Raphson method are used simultaneously to solve the Reynolds equation In the clearance and the equation of motion for the piston. The tapered piston showed stable behaviors regardless of their initial eccentric conditions in the clearance and the reciprocating speed affect highly on the piston end trajectories. Therefore, the results of present study can be used other types fluid machineries.