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허준영(J. Y. Huh),정성원(S. W. Jeong),박성수(S. S. Park) 유공압건설기계학회 2010 유공압건설기계학회 학술대회논문집 Vol.2010 No.10
Generally, an appartus is called as winch system, which is used to life a heavy body to high place winding wired-rope on a cylindrical drum. A load holding valve is used in winch system. The function of load holding valve is to protect over-run and free falling of inertia load. This study deals with a pressure control of hydraulic winch system using load holding valve. To examine the static characteristics of this winch system, firstly a simple model of winch system is derived. Ans some equations which designate the static characteristics are derived and calculated using Matlab. Finally AMESim simulation was used to verify results of analysis about hydraulic winch system.
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김종한,박정준,정성원,박진우 한국경영과학회 2003 한국경영과학회 학술대회논문집 Vol.- No.2
A hybrid artificial intelligence approach based on combining case based reasoning and neural networks is presented. The approach is designed to allow for solving blowing control of BOF(basic oxygen furnace), example of which lie at the core of steelmaking process control systems application in the steel industry. According to this hybrid approach, the system, when faced with a new problem, first retrieves similar cases and neural network is used to solve the problem. Experimental Results indicate that combining case based reasoning and neural network offers an efficient approach to solving control and prediction problem.