摘要
本文研究了小型阻尼吸振块对悬臂粱的减振效果.文中用Dirac Delta函数来表示吸振块对梁振动的影响,并用Laplace变换方法求得了任意安置n个吸振块的悬臂梁的复频率方程和复模态函数,算例详细地研究了带一个吸振块的情况,给出了损耗因子和共振频率的变化曲线,供设计使用.
In this paper we study a new small damping vibraction absorber and its results of absorbing vibration to the cantilever beam. The equations of motion of the beam are introduced according to interation of the beam to absorber. Influanpe of damping vibration absorber on the beam is presented by Dirac Delta function, then complex frequence equation, complex model function and loss facter of the cantilever beam, on which n-piece absorbers are arbitrarily fixed, can be found by means of laplace transfermation method. In this paper computer examples also are given to demonstrate that the analysis method may be correct and damping vibration absorber can be applied in engineering.
