一种非线性吸振器的振动特性及参数影响研究

doi:10.16182/j.issn1004731x.joss.17-0364

系统仿真学报 ›› 2019, Vol. 31 ›› Issue (10): 2069-2077.doi: 10.16182/j.issn1004731x.joss.17-0364

一种非线性吸振器的振动特性及参数影响研究

刘丽兰, 任博林, 朱国栋

西安理工大学机械与精密仪器工程学院,陕西西安 710048

收稿日期:2017-08-02 修回日期:2017-10-13 出版日期:2019-10-10 发布日期:2019-12-12
作者简介:刘丽兰(1979-),女,吉林,博士,副教授,研究方向为机电系统动力学理论及控制;任博林(1990-),男,陕西,硕士,研究方向非线性吸振器动力学研究;朱国栋(1991-),男,陕西,硕士生,研究方向非线性振动能量捕获器动力学。
基金资助:
国家自然科学基金(11572243)

Research on Vibration Characteristics and Parameters Influence of a Nonlinear Vibration Absorber

Liu Lilan, Ren Bolin, Zhu Guodong

School of Mechanical and Instrumental Engineering, Xi’an University of Technology, Xi’an 710048, China

Received:2017-08-02 Revised:2017-10-13 Online:2019-10-10 Published:2019-12-12

摘要/Abstract

摘要： 将双稳态非线性电磁式振动能量捕获器作为吸振器以吸收有害振动并转化为可利用电能。建立了含双稳态非线性电磁式振动能量捕获器的主系统的力学模型和控制方程,分析了高斯白噪声强度对双稳态吸振器大幅运动的影响。获得了白噪声激励下质量比和调谐频率比对主系统减振和双稳态吸振器发电的影响规律,通过参数的逐步优化,获得了质量比和调谐频率比最佳参数配置区间,在保障主系统减振的前提下使双稳态吸振器的能量捕获功率得到提高。

关键词: 白噪声激励, 非线性吸振器, 动力学特性, 最优参数配置

Abstract: The bistable nonlinear electromagnetic vibration energy harvester (BNEVEH) is used as a vibration absorber to absorb harmful vibration and transfer it into useful electric energy. The mechanical model and governing equation of the main system with BNEVEH are established. The effect of Gauss white noise intensity on large amplitude motion is analyzed by simulations. And the effect law of mass ratio and tuning frequency ratio on the vibration reduction of the main system and power generation of bistable vibration absorber under Gauss white noise excitation is analyzed from the point of vibration reduction and vibration energy harvesting. The optimal parameter configuration ranges of the mass ratio and tuning frequency ratio are obtained by gradual structural parameter optimization. The energy harvesting power of the bistable vibration absorber is improved under the condition of ensuring the main system vibration reduction.

Key words: white noise excitation, nonlinear vibration absorber, dynamic characteristics, optimal parameters allocation

中图分类号:

O322

刘丽兰, 任博林, 朱国栋. 一种非线性吸振器的振动特性及参数影响研究[J]. 系统仿真学报, 2019, 31(10): 2069-2077.

Liu Lilan, Ren Bolin, Zhu Guodong. Research on Vibration Characteristics and Parameters Influence of a Nonlinear Vibration Absorber[J]. Journal of System Simulation, 2019, 31(10): 2069-2077.

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一种非线性吸振器的振动特性及参数影响研究

Research on Vibration Characteristics and Parameters Influence of a Nonlinear Vibration Absorber

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