%0 Journal Article
%T Modeling of fuzzy control in sheet deep drawing<br>板料拉深成形液压系统模糊控制建模
%A ZHU Wei
%A DONG Xiang-huai
%A ZHANG Zhi-liang
%A <br>朱伟
%A 董湘怀
%A 张质良
%J 控制理论与应用
%D 2007
%I 
%X To deal with the undesirable dynamic response and the low steady-state precision of the hydraulic control in sheet-deep drawing, a fuzzy control model is built based on fuzzy adaptive PID adjustment rules. The look-up table for optimal control parameters is generated from MATLAB Toolbox. Two load profiles of variable blank holder force (VBHF) in real tests are applied for testing the real-time effect of VBHF. Experimental results show that when the input signal is a constant VBHF, the over-shoot under this fuzzy control of adaptive PID controller is less than 4.25% of the set-point value, in comparison with the 21.24% with no PID controller and the 31.07% with conventional PID controller. The regulation height and the regulation time are reduced to 5 mm and 0.24 s respectively. When the input signal is a U mode of VBHF, the over-shoot is decrease by 5% from the value when no PID is applied, and the regulation height also decreased by 1 mm. These demonstrate that the proposed fuzzy model effectively improves the dynamic response and raises the steady-state precision of the VBHF system.
%K fuzzy control
%K sheet deep drawing
%K hydraulic pressure system
%K adaptive PID controller
%K MATLAB<br>模糊控制
%K 板料拉深成形
%K 液压系统
%K PID自适应控制器
%K MATLAB
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=970898A57DFC021F93AB51667BAED7F7&aid=22C84A387EC64C9FDBE63120A4EEA473&yid=A732AF04DDA03BB3&vid=B91E8C6D6FE990DB&iid=CA4FD0336C81A37A&sid=B62E0EEFE746E568&eid=6FBD78E3BAB60869&journal_id=1000-8152&journal_name=控制理论与应用&referenced_num=0&reference_num=7