基于双稳态发电建立了在简谐激励下的非线性吸振器的动力学模型。从数值仿真的角度研究了在简谐激励下基于双稳态发电的非线性吸振器的动力学特性，分析了激励频率和激励幅值对吸振器发生大幅混沌运动的影响规律。研究了调谐频率比f、质量比μ、非线性强度β和吸振器的阻尼系数γ_1对非线性吸振器和主系统动力学特性的影响，得到了主系统发生共振和非共振情况下非线性吸振器的最优参数配置，为非线性吸振器的优化设计提供理论基础。
Abstract
The dynamics equation of the nonlinear vibration absorber in harmonic excitation is established based on bistable power generation. The dynamic characteristics of the nonlinear vibration absorber excited by harmonic signal are studied by the simulation. The occurring condition of the large amplitude motion of the vibration absorber in harmonic excitation is obtained. The influence of tuned frequency ratio f, mass ratio μ, nonlinear strength β and damping coefficient γ_1 to dynamics of the nonlinear vibration absorber and main system have studied in this paper. In addition, the optimal parameter configuration of the nonlinear vibration absorber are obtained at the resonance region and the non-resonant region. This paper provides a theoretical reference for the study of the optimal design of nonlinear vibration absorber.
关键词
非线性吸振器 /
双稳态发电 /
简谐激励 /
参数配置 /
动力学
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Key words
nonlinear vibration absorber /
bistable power generation /
harmonic excitation /
parameters configuration /
dynamics
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参考文献
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