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김일수(Ill-Soo Kim),박창언(Chang-Eun Park),정영재(Young-Jae Jeong),송창재(Chang-Jae Song),김학형(Hak-Hyoung Kim),박주석(Ju-Seog Park) 한국유체기계학회 1999 유체기계 연구개발 발표회 논문집 Vol.- No.-
The biggest challenge facing today manufacturing industry is better quality and high productivity. From an economic point of view, productivity is the most important parameter, as high productivity will reduce the cost. However, the customers of day are not only cost concerned, but also quality conscious. So high accuracy levels should also be achieved in the manufacturing process. This paper reports the development of a automatic design system based on AutoCAD program. This work is composed of three section that are design of top down menu, impeller and casing for pump programed by AutoLISP language and runned Windows system. The developed system ultimately generates the design for a pump through AutoCAD program. In the design of the pump, it needs about 23 hours with an expert, but this system can be only 80 seconds without an expert.
空氣壓 변화에 의한 실린더의 最適 位置制御에 관한 硏究
박창언,김일수,김기우,정영재,손준식,송창재 木浦大學校 工業技術硏究所 1999 工業技術硏究誌 Vol.9 No.-
With the increasingly strict demands on accuracy position control of the production line, the modelling and control of the activated process have become a subject of great interest. Much efforts have been made in understanding and modelling of this process in the last decade. This thesis concentrates on the position control of Pneumatic cylinder under parameter variation. An adaptive control is proposed to design the defferent controllers(P, PI, PID, PD controller) in order to choose the best controller based on the fast and accurate control of the system. It is shown that the adaptive control algorithm is robust and effective in attaining the fast and accurate position control of system under time-dependent parameter variation. Experimental results showed that PD controller law is effective to obtain the fast response and to increase the stability of the system. The method is a useful control algorithm which always automatically adjusts the position control in accordance with the error, using carrier wave of triangle type regardless of changes on the operating condition and physical differences between components.
김일수,김기우,정영재,손준식,송창재,박주석 한국공작기계학회 1999 한국생산제조학회지 Vol.8 No.6
This paper concentrates on the position control of a pneumatic cylinder under parameter variation. A closed-loop control is proposed to design the different controllers(P, PI, PID, PD controller) in order to choose the best controller based on the fast and accurate control of the system. It is shown that the control algorithm is robust and effective in attaining the fast and accurate position control of system under time-dependent parameter variation. Experimental results showed that PD controller law is effective to obtain the fast response and to increase the stability of the system. The method is a useful control algorithm which always automatically adjusts the position control in accordance with the error, using carrier wave of triangle type regardless of changes on the operating condition and physical differences between components.