CNC Motion Control Under Friction Effect
Do Trung Hai
Thai Nguyen University of Technology, Thai Nguyen City, Vietnam
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The effect of friction on precise drive control systems is significant. The friction model is nonlinear, so it is often ignored when designing linear controllers. However, when applied to an actual object, the impact of friction causes oscillations to the controller. Mitigate this problem, and the controller is designed with a slower response to reduce sensitivity to friction caused during motion. It significantly reduces overall system responsiveness. For the purpose of clarifying the role of friction force affecting the control quality of the system, the drive motor is used as a DC motor. DC motors can quickly impose a linear torque with a controlled set amount. This paper presents a control solution to overcome the disadvantages of system dynamics when increasing output response delay. The simulation results of the system prove the proposed controller efficiency.