考虑非线性阻尼的双稳态电磁式吸振器的动力学特性研究

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振动与冲击 ›› 2017, Vol. 36 ›› Issue (17) : 91-96.

论文

刘丽兰，任博林，朱国栋，杨倩倩

作者信息 +

Research on dynamics of the bistable electromagnetic vibration absorber with nonlinear damping

LIU Li-lan, REN Bo-lin, ZHU Guo-dong, YANG Qian-qian

Author information +

文章历史 +

摘要

本文将非线性阻尼引入到双稳态电磁式振动能量捕获器中，提出了考虑非线性阻尼的双稳态吸振器。建立了考虑非线性阻尼的双稳态吸振器和主系统的力学模型和数学模型。分析了考虑非线性阻尼的双稳态吸振器随非线性阻尼系数的分岔情况。数值仿真研究发现，特别是在频率共振区域，考虑附加非线性阻尼的双稳态吸振器比线性阻尼的双稳态吸振器对主系统减振更有优势。并进一步获得了主系统及考虑非线性阻尼的双稳态吸振器振动能量随非线性阻尼参数的变化曲线，发现了非线性阻尼对主系统减振及吸振器发电的影响规律。上述研究工作可为双稳态吸振器的研究提供参考。

Abstract

The nonlinear damping is added into the bistable electromagnetic vibration harvester. The bistable electromagnetic vibration energy harvester with nonlinear damping as a nonlinear vibration absorber is put forward in the paper. The mechanical and mathematical model of the main system and the bistable vibration absorber with nonlinear damping is established. The bifurcation diagram of the nonlinear vibration absorber and nonlinear damping is obtained. The vibration effect of the main system with bistable vibration absorber with nonlinear damping is superior to that with linear damping by means of simulation, especially in the resonance region. Furthermore, the relationship curve of the vibration energy of the main system and the bistable vibration absorber and nonlinear damping is obtained. The influence laws of the nonlinear damping on the vibration energy of the main system and average output power are obtained. The above research results can provide a reference for the study of the bistable vibration absorber.

导出引用

刘丽兰，任博林，朱国栋，杨倩倩. 考虑非线性阻尼的双稳态电磁式吸振器的动力学特性研究[J]. 振动与冲击, 2017, 36(17): 91-96

LIU Li-lan, REN Bo-lin, ZHU Guo-dong, YANG Qian-qian. Research on dynamics of the bistable electromagnetic vibration absorber with nonlinear damping[J]. Journal of Vibration and Shock, 2017, 36(17): 91-96

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