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초기압착력 설정을 위한 쐐기형 레일클램프의 창의적 설계
한동섭(Dong-Seop Han),김용(Yong Kim),이성욱(Seong-Wook Lee),한근조(Geun-Jo Han) 한국기계가공학회 2007 한국기계가공학회지 Vol.6 No.3
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 several 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.
Locker 의 물림각이 쐐기형 레일클램프의 압착력에 미치는 영향 평가
한동섭(D. S. Han),이성욱(S. W. Lee),한근조(G. J. Han),안찬우(C. W. Ahn) 한국정밀공학회 2005 한국정밀공학회 학술발표대회 논문집 Vol.2005 No.10월
The wedge type rail clamp has the operating mechanism: First, the jaw pad clamps a rail with small clamping force. Next as the wind speed increases, the clamping force of the jaw pad is increased by the wedge. The initial clamping force of a jaw pad was determined by the clamping angle of a locker. In this study, we carried out the finite element analysis to evaluate the relationship between the clamping angle of a locker and the clamping force of a jaw pad with respect to the design wind speed, such as 2, 4, 6, 8, and 10㎧, we adopted the wedge type rail clamp for 50tons class container crane with the wedge angle of 10˚.
쐐기형 레일클램프에서 초기압착력과 지지대의 적정위치사이의 관계
한동섭(Dong-Seop. Han),이성욱(Seong-Wook. Lee),한근조(Geun-Jo. Han),이권순(Kwon-Soon. Lee) 한국항해항만학회 2006 한국항해항만학회 학술대회논문집 Vol.3 No.1
쐐기형 레일클램프는 초기에는 작은 압착력으로 레일을 압착하다가 바람이 불면 쐐기작용에 의해 큰 압착력으로 레일을 압착하는 구조를 가지고 있다. 이 때 쐐기작용올 위해 레일클램프는 레일을 따라 이동하게 되는데, 만약 지지대를 설치하지 않으면 밀림거리가 증가하여 구조물을 파괴에 이르게 하는 과부하가 발생하게 되므로 이를 방지하기 위한 지지대를 적절히 설치하여야 한다. 이러한 지지대의 적정위치는 초기압착력과 쐐기각에 따라서 결정되므로, 본 연구에서는 이러한 초기압착력과 지지대의 적정위치사이의 관계에 대하여 살펴보기 위하여 5가지 쐐기각을 설계변수로 하여 유한요소해석을 수행하였다. The wedge type rail clamp compresses with small clamping force at first, and with large clamping force when the wind speed increase because of the wedge working. At this time in order to display the wedge working, the rail clamp slíps along a rail. If the supporter is not installed in the rail clamp when the wind speed increases more and more, the structure will occur overload which leads the structure to fracture. So the supporter has to be installed in the rail clamp. The proper position of this supporter is determined by the intial clamping force and the wedge angle. Therefore in this study we adopted 5-kinds of wedge angle as the design parameters, and carried out the finite element analysis, in order to analyze the relationship between the intial clamping force and the proper position of supporter in the wedge type rail clamp.
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.
초기압착력이 쐐기형 레일클램프의 밀림거리에 미치는 영향
한동섭(Dong-Seop Han),이성욱(Seong-Wook Lee),이정명(Jung-Myung Lee),한근조(Geun-Jo Han) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.6
In this study we dealt with the relationship between the initial clamping force and the sliding distance with respect to the wedge angle in the wedge type rail clamp. The sliding distance is determined by the wedge angle, and the initial clamping force by the clamping angle of a locker. Furthermore this sliding distance is affected by the initial clamping force. So in order to derive the relation formula between the initial clamping force and the sliding distance with respect to the wedge angle, we adopt 3-kinds of the wedge angle, such as 4, 6, 8°, and 3-kinds of the clamping angle of a locker, such as 2.18, 3.05, 3.92°. And then we analyzed the relationship between the initial clamping force and the sliding distance through the performance test of the trial product.
쐐기각에 따른 레일클램프의 초기 압착력과 밀림거리 사이의 관계
한동섭(D. S. Han),이성욱(S. W. Lee),권순규(S. K. Kwon),한근조(G. J. Han) 한국정밀공학회 2006 한국정밀공학회 학술발표대회 논문집 Vol.2006 No.5월
In this study we dealt with the relationship between the initial clamping force and the sliding distance in the wedge type rail clamp. The sliding distance is determined by the wedge angle and the initial clamping force. In order to derive the relation formula between the wedge angle and the sliding distance, we adopt 5-kinds of the wedge angle, such as 2, 4, 6, 8, 10°. And then we analyze the effect of the initial clamping force on the sliding distance.
웨지 구조를 이용한 원주면 가압형 전기기계브레이크 메커니즘 연구
신동환(Dong-Hwan Shin),권오석(Oh-Seok Kwon),배준형(Junhyung Bae) 한국자동차공학회 2009 한국자동차공학회 학술대회 및 전시회 Vol.2009 No.11
According to a current study, some researchers revealed that a Circumferential-Plane-Clamping disc bake can have better heat dissipation ability than conventional Side-Plane-Clamping disc brake. But, this study does not include proper Circumferential-Plane-Clamping disc bake mechanism. The Circumferential-Plane-Clamping can have another merit as a bigger brake torque due to larger moment arm than side-plane-clamping disc brake with same effort force. In this paper, we investigate high effient circumferential-plane-clamping Electro-Mechanical-Brake mechanism using wedge struture.