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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 15    No. 4    August 2005

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Simulation of fuzzy control systems for nonferrous alloy vacuum counter-pressure casting
YAN Qing-song(严青松)1, CAI Qi-zhou(蔡启舟)1
WEI Bo-kang(魏伯康)1, YU Huan(余 欢)2, YU Zi-rong(俞子荣)2

1. State Key Laboratory of Die Technology, 
Huazhong University of Science and Technology, Wuhan 430074, China; 
2. Nanchang Institute of Aeronautical Technology, Nanchang 330034, China

Abstract: Through simulation analyses of vacuum counter-pressure casting fuzzy control systems based on MATLAB, fuzzy control systems designed by simulation can track technical route established well. When transmission functions of vacuum counter-pressure casting controlled objects are changed in operation, fuzzy control systems can carry on self-regulation and stabilize quickly, and embody the advantages of fleet response velocity and little adjusting quantity. The design of vacuum counter-pressure casting fuzzy control systems is accelerated and improved greatly by simulation based on MATLAB. Meanwhile, their design is accurate and reliable. Moreover, microstructure and properties of thin-wall aluminum alloy castings are improved effectively by using fuzzy control systems.

 

Key words: vacuum counter-pressure casting; nonferrous alloy; fuzzy control; MATLAB; simulation 

ISSN 1672-7029
CN 43-1423/U

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