论文部分内容阅读
本文利用机械阻抗方法,对无阻尼质量弹簧串联系统进行了动力学分析,发现该系统在发生反共振时,子结构各质量的振幅之比总是等于该子结构模态向量各元素之比,从而可以方便地求得系统在简谐激振力下的响应.
In this paper, the mechanical impedance method is used to analyze the dynamics of an un-damped mass-spring series system. It is found that the amplitude ratio of the substructures is always equal to the ratio of the elements of the substructure modal vector when anti-resonance occurs. Thus, the response of the system under simple harmonic excitation can be easily obtained.