双自由度磁悬浮式轨道车辆振动俘能器的研究

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振动与冲击 ›› 2020, Vol. 39 ›› Issue (21) : 156-162.

论文

孔令强，袁天辰，杨俭，杨沥

作者信息 +

A 2-DOF vibration energy capture device for magnetic levitation rail vehicle

KONG Lingqiang, YUAN Tianchen, YANG Jian, YANG Li

Author information +

文章历史 +

摘要

提出了一种双自由度磁悬浮轨道车辆振动俘能器，该俘能器安装于轨道车辆转向架处，与单自由度磁悬浮轨道车辆振动俘能器相比振动能量收集效率得到显著提高。建立了双自由度振动俘能系统的物理以及数学模型，并对其动力学特性进行了分析，运用龙格库塔法计算得到双自由度俘能系统在简谐振动激励和轨道车辆垂向振动激励下的振动特性和输出功率并与单自由度俘能系统进行对比，研究结果表明：双自由度俘能系统共有两个共振峰，拓宽了俘能器的工作频带范围，通过改变尺寸参数可以提升系统针对目标频率的俘能效率；在简谐激励和轨道车辆振动激励下双自由度俘能系统的输出功率是单自由度俘能系统的1.5倍，能够高效俘获轨道车辆的振动能量。

Abstract

Here, a 2-DOF vibration energy capture devicefor magnetic levitation rail vehicle was proposed.This energy capture device was installed at the rail vehicle’s bogie, and its vibration energy collection efficiency was significantly improved compared with that of a single-DOF one.The dynamic model of the 2-DOF vibration energy capture device were established theoretically, and its dynamic characteristics were analyzed.Runge-Kutta method was used to calculate and obtain its dynamic characteristics and output power under simple harmonic vibration excitation and vertical vibration excitation of the rail vehicle.The calculated results were compared with those of the single-DOF energy capture device.Results showed that the 2-DOF energy capture system has two resonance peaks to widen its working frequency band range; changing its size parameters can lift its energy capture efficiency aiming at target frequency; the output power of the 2-DOF energy capture system is 1.5 times of that of the single-DOF one under simple harmonic vibration excitation and vertical vibration excitation of the rail vehicle to effectively capture vibration energy of the rail vehicle.

导出引用

孔令强，袁天辰，杨俭，杨沥. 双自由度磁悬浮式轨道车辆振动俘能器的研究[J]. 振动与冲击, 2020, 39(21): 156-162

KONG Lingqiang, YUAN Tianchen, YANG Jian, YANG Li. A 2-DOF vibration energy capture device for magnetic levitation rail vehicle[J]. Journal of Vibration and Shock, 2020, 39(21): 156-162

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