Application of SimulationX®-based. Technique to the reduction of pressure pulsation according to tilting angles of a swash plate and notch shapes of a valve plate for swash plate type piston motor

Machinery industry has constantly driven research on automation systems that use mechanical energy to increase the efficiency, productivity and convenience of production systems. In particularly the hydraulic systems using hydraulic fluid have higher power outputs than those of other systems, which is why they have long been used in construction and machinery industry. Among hydraulic equipment, the swash-plate type piston motor is the most important and indispensable component in construction and machinery industry, converting fluid energy into mechanical energy. To design a less noisy and more stable swash-plate type piston motor, the tilting angles of swash plates and the notch shapes of valve plates need be investigated. This paper first will investigate a kinematic analysis of a swash-plate type piston motor model, using the hydraulic analysis program SimulationX
^®
to 9 piston motor model and to simulate the tilting angle of swash-plate for the low-pressure pulsation and torque pulsation of the swash-plate type motor. Finally, we conducts modeling the notch shapes of the valve plate and analyse the effects of design parameters on torque stabilization and pressure pulsation as well as those of a non-notch, V-type notch and U-type notch on pulsation reduction and torque stabilization. The simulation result on pulsation reduction and torque stabilization will serve as reference data for determining some optimal figures in designing swash-plate type piston motors.