Abstract
이동하중을 받는 구조물의 동적 거동은 이동물체의 속도에 따라 정하중을 받을때 보다 큰 처짐을 나타내게 되어 구조물의 설계에 중요한 영향을 미치게 된다. 기계가공이나 볼스크류우를 이용한 위치제어분야에서 개선 및 성능 유지를 위한 해석의 기법이 요구되고 있다. 회전하는 티모센코축을 따라 이동하는 두 개의 이동하중을 받는 시스템에 대한 운동방정식이 Hamilton의 원리로 유도되었다. 무차원화된 속도비, 질량비, Rayleigh 계수비의 영향이 시스템의 응답에 미치는 영향을 해석하였다. The analysis of rigid body traveling along the rotating Timoshenko shaft has been a topic of interest. The problem arose from the observations that as a structure is subjected to moving loads, dynamic deflection as well as stresses can be significantly higher than those for static loads. The establishment of analytical method for the development and maintenance of performance is required in the fields of the machining operations and the position control using ball screw. The equations of motion for the rotating shaft subjected to the two moving forces are derived by using Hamilton's principle. Influence of system parameters such as the speed ratio, the mass ratio and the Rayleigh coefficient is discussed on the response of the moving system.
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