Title :
Chatter suppression with adaptive control in turning metal via application of piezoactuator
Author :
Pan, Jingchuan ; Su, Chun-Yi
Author_Institution :
Dept. of Mech. Eng., Concordia Univ., Montreal, Que., Canada
Abstract :
Self-excited vibration, so called chatter, is known to cause detrimental effects on the machined surface finish and to decrease the machining efficiency. In this paper, in order for chatter suppression, a piezoactuator is introduced for the regulation of the machine tool displacement. In order for the ultra-precision control in turning via piezoactuator, a model with hysteretic nonlinearity accounting for the dynamics of turning process, cutting tool and piezoactuator is presented. With this model, a robust adaptive controller for the metal cutting system of ultra-precision is proposed and the simulation results shows that the proposed adaptive controller significantly eliminates the chatter phenomena
Keywords :
adaptive control; cutting; machine tools; machining; piezoelectric actuators; robust control; stability; adaptive control; chatter suppression; cutting tool; machine tool displacement; machined surface finish machining efficiency; metal cutting system; piezoactuator; robust adaptive controller; self-excited vibration; simulation results; turning metal; ultra-precision control; Adaptive control; Cutting tools; Hysteresis; Machine tools; Machining; Nonlinear dynamical systems; Programmable control; Robust control; Surface finishing; Turning;
Conference_Titel :
Decision and Control, 2001. Proceedings of the 40th IEEE Conference on
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-7061-9
DOI :
10.1109/.2001.980628
