摘要
在实际工程中,当位移较大的时,调谐质量阻尼器(TMD)会表现出非线性特性,因此研究其非线性特性对于控制性能的影响具有非常重要的意义。文中研究了在考虑五次刚度非线性的条件下TMD的控制性能。在分析非线性TMD的基础上,基于传统的线性设计方法提出了一种基于跳变频率的非线性TMD的改进设计方法,得到了可用于改进设计的跳变频率解析解。仿真结果表明,与基于线性的设计方法相比,基于跳变频率的非线性TMD的改进设计方法可以改善TMD的控制性能。
In practical engineering,the tuned mass damper(TMD)will exhibit nonlinear characteristics when the displacement is large,so it is of great significance to study the effect of its nonlinear characteristics on control performance.In this paper,the control performance of TMD under the condition of nonlinear fifth-order stiffness is studied.Based on the traditional linear design method,an improved design method of nonlinear TMD is proposed,and the analytical solution of the jump frequency which can be used to improve the design is obtained.Simulation results show that compared with the linear-based design method,the improved design method of nonlinear TMD can improve the control performance of TMD.
作者
孙毅
李芦钰
SUN Yi;LI Lu-yu(Institute of Intelligent Structural Systems,Department of Construction Engineering,Dalian University of Technology,Dalian 116024,China)
出处
《振动工程学报》
EI
CSCD
北大核心
2021年第6期1215-1222,共8页
Journal of Vibration Engineering
基金
国家自然科学基金资助项目(51678116)。
关键词
振动控制
非线性TMD
刚度非线性
跳变频率
改进设计
vibration control
nonlinear TMD
stiffness nonlinearity
jump frequency
improved design
