Abstract
Vibration of a swashplate in swashplate type axial piston pumps and motors is considered in the slipper model. The theoretical model is established in consideration of vibration of the counter surface of the slipper and the calculation is performed under unsteady mixed lubrication. The representative parameters are as follows: the supply pressure of 21 MPa, the rotational speed of 25 rps, the slipper radius of 10 mm, the revolution radius of 30 mm, and the oil viscosity of 32 mPa・s. The motion, flow rate, contact pressure, and power loss are shown and the effects of the swashplate vibration and the operating conditions on the tribological characteristics of the slipper are discussed.
