一种新颖的变系数速度场无源控制算法

A Novel Passive Velocity Field Control Algorithm with Variable Coefficient

传统速度场无源控制X-Y双轴联动系统,在跟随多边形轨迹时拐角处存在导数不连续问题,在跟随圆形轨迹时存在“轨径缩减”现象。提出了一种变系数速度场无源控制算法,有效地解决了不同类型轨迹的连续平滑和轨径跟踪问题。实验结果表明,该算法应用于奥运五环轮廓切割中,跟随外缘长方形轨迹在拐角处无明显冲击,跟随内缘圆形轨迹时无缩轨现象,大大提高了轮廓切割精度,控制算法可行且有效。

The X-Y dual axis linkage system controlled by traditional passive velocity field control has the discontinue derivation at the corner of polygon and has the problem that called“path reduction”when following a circular trajectory.A passive velocity field control algorithm with variable coefficient was proposed,which effectively solves the problem of continuous smoothing and track tracking of different types of trajectories.The experiment results show that there is no obvious impact on the corner when follow the rectangle trajectory of the outer edge and there is no track shrinkage when follow the circular trajectory of the inner edge.The accuracy of contour cutting is greatly improved,and the control algorithm is feasible and effective.