이동물체와 구조물간의 분리 발생에 관한 연구

초록

In the moving mass problem, the interaction force between a moving mass and a structure obviously depends on the velocity of the moving mass and the flexibility of the structure. Thus, in some situations, the interaction force may become zero to change its sign, which implies the onset of the separation between the moving mass and the structure. Most of investigations on the moving mass problem have missed or ignored the possibility of the onset of separation in solving the dynamic responses of a structure caused by the masses sliding on it. Hence, this paper first investigates the possibility of the separation between a moving mass and a beam, and then takes into account the effects of the separation in some vibration analyses considered herein