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열 수축 튜브 자동 절단 장치를 위한 공정제어 및 감시 시스템에 관한 연구
김형석(HyoungSeok Kim),이병룡(ByungRyong Lee),유호영(HoYoung Yun) 대한기계학회 2008 大韓機械學會論文集A Vol.32 No.12
In conventional cutting system of Heat-Shrink-Tube, workers operate cutting system after considering about length and quantity of heat-shrink-tube. So, not only work time and production cost is increased but also material is wasted because the data that workers have to consider is so much. In this paper, an effective cutting system of heat-shrink-tube was developed to reduce production cost, work time and waste of material. The cutting system consists of a supervisory computer installed inside a control room, a on-site computer installed on the work area, and a PLC system. In the developed system, a supervisory computer send work order to the on-site computer using LAN and the on-site computer operates the cutting system of the heatshrink- tube after it makes an array production order. Also, the on-site computer reports information to the supervisory computer when an accident happened.
에너지 절감을 위한 전공 레귤레이터의 압력제어에 관한 연구
김형석(HyoungSeog Kim),안경관(KyoungKwan Ahn),이병룡(ByungRyong Lee),윤소남(SoNam Yun) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.11
Nowadays, elector-pneumatic regulator is widely used to a variety of practical pressure control applications. Fuzzy rule based PWM algorithm is newly proposed to save energy of electro-pneumatic regulator in this paper. A novel fuzzy rule based pulse width modulation(FRPWM) valve pulsing algorithm allows the electro-pneumatic regulator to become energy saving system. A comparison between the system response of conventional PWM algorithm and that of the proposed algorithm shows that the control performance is almost the same, but energy saving is greatly improved by adopting this new PWM algorithm. The effectiveness of the proposed FRPWM algorithm is demonstrated through experiments with various reference trajectories.
3 자유도 물고기 로봇의 동적해석 및 운동파라미터 최적화에 관한 연구
김형석(HyoungSeok Kim),Vo Tuong Quan,이병룡(ByungRyong Lee),유호영 대한기계학회 2009 大韓機械學會論文集A Vol.33 No.10
Recently, the technologies of mobile robots have been growing rapidly in the fields such as cleaning robot, explosive ordnance disposal robot, patrol robot, etc. However, the researches about the autonomous underwater robots have not been done so much, and they still remain at the low level of technology. This paper describes a model of 3-joint (4 links) fish robot type. Then we calculate the dynamic motion equation of this fish robot and use Singular Value Decomposition (SVD) method to reduce the divergence of fish robot’s motion when it operates in the underwater environment. And also, we analysis response characteristic of fish robot according to the parameters of input torque function and compare characteristic of fish robot with 3 joint and fish robot with 2 joint. Next, fish robot’s maximum velocity is optimized by using the combination of Hill Climbing Algorithm (HCA) and Genetic Algorithm (GA). HCA is used to generate the good initial population for GA and then use GA is used to find the optimal parameters set that give maximum propulsion power in order to make fish robot swim at the fastest velocity.