摘要
利用钢丝绳减振器的二自由度振动模型,分别讨论了在基础激励条件下质量、阻尼、刚度对系统幅频特性的影响。研究表明,基础的简化质量及刚度对系统共振时的幅值和固有频率都有影响;钢丝绳减振器的阻尼和地基阻尼均对系统共振时幅值影响比较明显,而对固有频率影响较小;其它参数对幅频特性影响较小,同时结果也表现出明显的非线性特性。
The amplitude-frequency characteristics were discussed under foundation excitation by changing mass,damping and rigidity in the two-degree system. The result shows that the simplified foundation mass and rigidity have strong influence on amplitude and frequency, and the damping of steel wire rope shock absorber and founda- tion has more obvious influence on amplitude and less influence on frequency. Others parameters have tiny influ- ence on amplitude-frequency characteristics. In addition, it also displayed nonlinear characteristics.
出处
《太原科技大学学报》
2013年第3期233-237,共5页
Journal of Taiyuan University of Science and Technology
基金
山西省研究生优秀创新项目(20123108)
山西省青年科技研究基金(2012021019-7)
关键词
钢丝绳减振器
二自由度系统
基础激励
幅频特性
VB
steel wire rope shock absorber,basis excitation,two degree system,dynamic response VB
