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소규모 공작기계용 소재공급장치의 이송 셔틀 시스템에 관한 구조해석
강대성(Dae-Sung Kang),정은익(Eun Ik Jung),김경희(Kyung-Heui Kim),백일천(Il-Cheon Baek),이중섭(Chung-Seob Yi) 한국기계가공학회 2019 한국기계가공학회지 Vol.18 No.4
The aim of this study was to interpret the structure and dynamics of a transfer shuttle system as a material supply device for small machine tools. The following conclusions were obtained by performing a structural interpretation of the material supply equipment with respect to workload and the dynamical interpretation of a flexible multibody carriage shuttle. When a 1,000-kg workload was applied to a fork lift, the safety factor was approximately 1.86. To conservatively assess the integrity of the structure, a 1,000-kg workload would be proper. In the case of a deflection of the fork system, the width increased with increasing time. The greatest deflection occurred at 5.5 s, which was the largest increase in the time point of the fork system.
김봉환(Bong-Hwan Kim),류광현(Kwang-Hyun Ryu),정은익(Eun-Ik Jung),조은만(Eun-Man Cho),이정언(Jung-Eun Lee) 한국기계가공학회 2010 한국기계가공학회지 Vol.9 No.3
The aim of this study is to investigate the influence of driving atomizing nozzle position, the slope of sludge entering tube and supplying air flow rate on the performance of sludge air dryer. This paper deals with optimization of the geometry of the atomizing nozzle for sludge drying using computational fluid dynamics and drying performance test using pilot air dryer. The air drying system was composed of the atomizing nozzle which made high-speed fluid field. dewatered cake was crushed at the high-speed zone as the first step and formed intto dried powder of sphere shape by the collision between particles at the circling zone. The CFD analysis results show when the slope of entering sludge tube is smaller, suction air amount is increased. It is shown that the developed atomizing nozzle is very excellent in the drying performance through pilot test.