直线电机驱动柱塞泵的运动规划研究

Research on Motion Planning of Linear Motor Driven Piston Pump

为了改善柱塞泵的流量特性,系统研究了恒流量直线电机驱动柱塞泵的可行运动规划。经计算,四电机双作用柱塞泵以三角波间隔π/2相位差或以间断式梯形波间隔π/2相位差为运动规划,是具有冗余功能的可行方案。应用AMESim软件,构建了四直线电机双作用柱塞泵系统的仿真模型。仿真实验发现,三角波曲线间隔π/2相位差的方案是实际流量脉动较小的优选运动规划。

To improve the flow rate properties of piston pump, the feasible motion planning of a linear motor driven piston pump was investigated systematically, which was easier to achieve constant flow rate. Through computation,it is finded that the solution of four double-acting motor driven piston pump in motion planning of triangular waves with phase difference ofπ/2 or incontinuous trapezoidal waves with phase difference of π/2 is the possible one with redundancy. The system model of four double-acting linear motor driven piston pump was established by the software of AMESim, using the feasible solution to achieve the constant flow of piston pump theoretically. Through simulation, the so- lution of triangular waves with phase difference of π/2 is the preferred motion planning,which has less actual flow pulsation.