中国机械工程
中國機械工程
중국궤계공정
CHINA MECHANICAl ENGINEERING
2011年
24期
2986-2989
,共4页
蔡侃%应济%陈子辰%王硕
蔡侃%應濟%陳子辰%王碩
채간%응제%진자신%왕석
注塑过程%保压压力%神经网络%神经网络%CMAC和PID复合控制
註塑過程%保壓壓力%神經網絡%神經網絡%CMAC和PID複閤控製
주소과정%보압압력%신경망락%신경망락%CMAC화PID복합공제
injection molding process%packing pressure%neural network%CMAC and PID compound control
针对传统PID算法对注塑成形过程中保压压力进行控制时存在压力超调、静差和时延等问题,建立了注塑过程保压压力的系统数学模型,针对系统特性设计了新型CMAC和PID复合控制器。实验结果表明,相对于传统PID控制,CMAC和PID复合控制对保压压力的超调、静差和时延有显著的改善,制品质量和重复精度得到明显提高。
針對傳統PID算法對註塑成形過程中保壓壓力進行控製時存在壓力超調、靜差和時延等問題,建立瞭註塑過程保壓壓力的繫統數學模型,針對繫統特性設計瞭新型CMAC和PID複閤控製器。實驗結果錶明,相對于傳統PID控製,CMAC和PID複閤控製對保壓壓力的超調、靜差和時延有顯著的改善,製品質量和重複精度得到明顯提高。
침대전통PID산법대주소성형과정중보압압력진행공제시존재압력초조、정차화시연등문제,건립료주소과정보압압력적계통수학모형,침대계통특성설계료신형CMAC화PID복합공제기。실험결과표명,상대우전통PID공제,CMAC화PID복합공제대보압압력적초조、정차화시연유현저적개선,제품질량화중복정도득도명현제고。
Aiming at serious problems of controlling packing pressure in injection molding processes with traditional PID algorithm, such as pressure overshoot,static error,time delay etc.,a mathematical model of the packing pressure system in injection process was established.Considering the behaviors of system,a new control device with CMAC and PID compound controller was designed. The experimental results show that,compared to traditional PID control, CMAC and PID compound control improves the pressure overshoot,static error and time delay of the packing pressure significantly,and makes notable progresses on quality and repeatability of products.
