Title :
Nonlinear modeling of electrohydraulic servo injection molding machine including asymmetric cylinder
Author :
He, Xuesong ; Wang, Xvyong ; Feng, Zhengjin ; Zhang, Zhixin
Author_Institution :
Inst. of Mechatronics Res., Shanghai Jiao Tong Univ., China
Abstract :
In this paper, a nonlinear dynamic model of the injection molding process for a electrohydraulic servo injection molding machine (IMM) is developed. It was found necessary to consider the characteristics of asymmetric cylinder for electrohydraulic servo IMM. The model is based on the dynamics of the machine including servo valve, asymmetric cylinder and screw, and the non-Newtonian behavior of polymer melt in injection molding is also considered. The performance of the model was evaluated through simulation end experimental data, and results demonstrate the effectiveness of the model.
Keywords :
electrohydraulic control equipment; injection moulding; nonlinear dynamical systems; polymer melts; servomechanisms; asymmetric cylinder; electrohydraulic servo injection molding machine; nonNewtonian behavior; nonlinear modeling; polymer melt; servo valve; Electrohydraulics; Fasteners; Filling; Injection molding; Open loop systems; Polymers; Pressure control; Servomechanisms; Valves; Velocity control;
Conference_Titel :
American Control Conference, 2003. Proceedings of the 2003
Print_ISBN :
0-7803-7896-2
DOI :
10.1109/ACC.2003.1243997
