Velocity Control Method for Continuous Short Line Segment High-Speed Machining Based on Transition of Parametric Spline

Abstract

To enhance the velocity profile’s smoothness and machining efficiency of continuous short line segments, a velocity smooth control algorithm was presented based on the transition of cubic parametric spline curves. The transitional mathematical model was constructed, and an improved S-shaped jerk-limited acceleration/deceleration algorithm with look-ahead was adopted for smoother velocity profiles. The simulation and experiment results showed that machining efficiency was greatly improved, and smoother velocity profile was achieved, which approved the feasibility and validity of the proposed method.

Study on an Acc/Dec Method Based on Moving Average Technology for CNC Machine Tools

“…Erkorkmaz proposed an S-curve acceleration and deceleration algorithm of velocity planning [6]. Zhang [7] presented a velocity planning approach of the S-curve acceleration and deceleration model combined with a look-ahead algorithm. Xu proposed an adaptive parametric interpolation scheme to eliminate the phenomenon of overshoot and undershoot and reduce mechanical vibration of CNC machine tools, but this would consume longer machining time [8].…”

Research on a Rapid S-Shaped Acceleration and Deceleration Method for Computerized Numerical Control System

“…Erkorkmaz presented a S-shape acceleration and deceleration control algorithm [3]. Zhang [4] and Dong [5] put forward a kind of a S-shape acceleration and deceleration planning algorithm in combination with look-ahead control. Xu proposed an adaptive parameter interpolation method with the S-shape acceleration and deceleration velocity planning limited acceleration and jerk [6].…”

Research on the Characteristics of PMSM Vector Control System Based on Speed Sliding Mode Controller

“…Because of simple construction, light weight, small size, low loss, and high efficiency, permanent magnet synchronous motor (PMSM) attract our attention [1]. PMSM get more and more application in national defence, Industrial and agricultural production and daily life, etc.PI control method is the classic control strategy,it can not only improve improve the system static accuracy,but also improve system stability and the system dynamic performance [2].So it is widely used in vector control of permanent magnet synchronous motor control system.…”