【摘要】 研究了利用支承轴向移动对小垂度索振动实施主动控制的方法 ,对出现的不可控模态运动给出了物理解释 ,探讨了在索上附加阻尼器对不可控模态运动的影响。利用支承轴向移动对小垂度索自由振动实施主动控制进行了数值仿真研究 ;对在索上附加的阻尼器不可控模态运动的影响进行了数值仿真研究更多还原

【Abstract】 The active control method of small sag cable vibrations by axial support movement is studied. The physical interpretation of the uncontrollable motions of the small sag cable are given. The dampers attached to the cable for suppressing the uncontrollable motions are discussed. Numerical simulations for the active control of free vibrations by axial support movement are conducted. Numerical simulations for the effect of the dampers attached to the uncontrollable motion is studied.更多还原