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

Volume

4

fYear

2003

fDate

4-6 June 2003

Firstpage

3055

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;

fLanguage

English

Publisher

ieee

Conference_Titel

American Control Conference, 2003. Proceedings of the 2003

ISSN

0743-1619

Print_ISBN

0-7803-7896-2

Type

conf

DOI

10.1109/ACC.2003.1243997

Filename

1243997