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쐐기프레임의 저항력이 레일클램프의 압착력에 미치는 영향
한동섭(Dong-Seop. Han),이성욱,이권희(Kwon-Hee. Lee),한근조(Geun-Jo. Han),Jae-Joon. Shim 한국항해항만학회 2006 한국항해항만학회 학술대회논문집 Vol.1 No.-
컨테이너 크레인용 쐐기형 레일클램프에서 조 패드의 초기 압착력은 라커의 물림각 설정 후 라커를 체결 시 주요 부품의 변형량에 의해서 결정된다. 이때 여러 인자들로 인해 쐐기 프레임의 저항력이 발생하게 되면, 인장봉의 변형을 감소시켜 초기 압착력 설정을 위한 라커의 물림각이 변하게 된다. 이러한 쐐기 프레임의 저항력은 롤러와 쐐기사이의 편심거리와 쐐기 프레임과 외곽 프레임 사이의 틈새에 따라 결정된다. 본 연구에서는 초기압착단계에서 인장봉에 전달되는 인장력을 실험을 통하여 측정함으로써 쐐기 프레임의 저항력이 라커의 쐐기형 레일클램프의 압착력에 미치는 영향을 평가하고자 한다. The clamping force of a jaw pad is determined by the displacements of main part when two lockers are locked, after the clamping angle of a locker was set up in the wedge type rail clamp for a container crane. In this time, if the resistance of wedge frame generates due to serveral factors, the clamping angle of a locker to display the initial clamping force will be changed because of the reduction of displacement of extension bar. This resistance is determined by the eccentric distance between the roller and the wedge, and by the gap between the wedge frame and outer frame. In this study we measured the tensile force of both extension bar through the performance test of the prototype rail clamp in order to evaluate the effect of the resistance of wedge frame on the clamping force of the wedge type rail clamp.
한동섭(Dong-seop Han),한근조(Geun-jo Han),이성욱(Seong-wook Lee) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.10
The rail clamp is the device to prevent the crane slips along a rail from the wind blast as well as to locate a container crane in the set position during an operating mode. In this study we conduct the research for determining the proper position of supporter to prevent the overload applied to the rail clamp with respect to the wedge angle in the wedge type rail clamp. The friction force between the jaw pad and the rail to prevent that the crane slips along a rail, when the wind blows, is generated by the rail-directional wind load. Accordingly the proper position of the supporter to prevent the overload is determined by analyzing the forces applied to the rail clamp in the wedge working stage. In order to analyze the effect of the wedge angle on the position of supporter, 5-kinds of wedge angles, such as 2, 4, 6, 8, 10°, were adopted as the design parameter, and the wind speed of 40m/s was adopted as the design wind speed criteria.
Container의 낙하높이가 LMTT용 Shuttle Car의 충격흡수장치 충격반력에 미치는 영향
한동섭(Dong-Seop Han),한근조(Geun-Jo Han),임종현(Jong-Hyun Lim) 한국자동차공학회 2004 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
LMTT(Linear Motor-based Transfer Technology) is horizontal transfer system in the maritime container terminal for the port automation. The system is driven by PMLSM(Permanent Magnetic Linear Synchronous Motor) that is consists of stator modules on the rail and shuttle car. This paper investigates the effect of the drop height of container on impact reaction force of the Impact Absorbing System(IAS) in shuttle car for LMTT. The results of this investigation are obtained from detailed finite element analysis for various parameters, such as the spring coefficient, the drop height of container.
스플라인의 공차가 프로펠러 샤프트의 처짐에 미치는 영향
한동섭(Dong-Seop Han),이성욱(Seong-Wook Lee),김용(Yong Kim),한근조(Geun-Jo Han) 대한기계학회 2007 대한기계학회 춘추학술대회 Vol.2007 No.5
A propeller shaft is the device which is used to transmit the power between two shafts in a vehicles, an industrial machinery, etc. The end of spline is worm due to the deflection of the propeller shaft, and a lifetime of it is reduced, because it for industrial machinery has the length of 2,500 ㎜, the weight of 300 ㎏f, and the sliding distance of ±250 ㎜. Accordingly in this study we analyzed the effect of the gap of spline on the deflection of a propeller shaft carrying out the finite element analysis, in order to determine the proper gap of spline to minimize the deflection of it. We adopt 10-kinds of gap of spline from 0.05 ㎜ to 0.5 ㎜ at interval of 0.05 ㎜ as the design parameter for the finite element analysis and the centrifugal force as the load condition.