Research on the adaptive control method with continuous feedback parameters for controlling of chaotic motion

Abstract

Abstract. Although the feed system of CNC machine tool is a certain dynamic system, the chaotic motion often occurs because of the function of the nonlinear factors.The dynamic model of the feed system with nonlinear spring force and nonlinear friction force is numerically simulated by using the adaptive control method with continuous feedback parameters. It can be seen that when the system is in chaotic vibration state, the adaptive feedback control is applied, and the different target orbital period are given，that is the different time delay values τ .With the adjustment of the intensity of the control signalσ , the chaotic vibration can be entered into the quasi periodic state in a short time.