斜盘式轴向柱塞液压马达低速稳定性仿真

Simulation of axial piston hydraulic motor low speed performances

建立了斜盘式轴向柱塞液压马达系统摩擦扭矩非线性的数学模型,采用计算机仿真的手段,研究了摩擦扭矩、漏泄系数、油液压缩率等因素对液压马达的低速稳定性的影响,获得了液压马达低速时瞬时角排量的脉动率变化规律,由此,为改善油马达的低速稳定性对管理者应采取什么样的措施提出了建议.

This paper establishes the mathematic model and simulated model of nonlinear friction torque based on axial piston hydraulic motor by MATLAB simulink integrated modeling and simulation. By taking QXBS-E50 axial piston hydraulic motor as an example, investigates the effects of friction torque and hydraulic motor's parameters such as coefficient of leak, compression ratio of oil etc on the performances under low speed, obtains the change of angular velocity of the motor with the time at the low speed. The present study is of some instructional and practical significance to the management of this type of motor.