Design and performance analysis of energy recovery and self-sensing MR dampers based on piezoelectric effect

IF 0.7 Q4 ENGINEERING, CIVIL International Journal of Structural Engineering Pub Date : 2023-01-01 DOI:10.1504/ijstructe.2023.134347

Shu mei Chen, Bai zhou Ma, Hui Huang, Chang lin Chen

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Abstract

In this paper, an energy recovery type self-sensing magnetorheological dampers (MRD) was proposed, using a damper nested in a piezoelectric ceramic (PZT) stack structure to achieve energy recovery and self-sensing. Firstly, the structure of the damper is designed rationally. Secondly, the MRD-based damping force model is established by combining the characteristics of the damper motion and the flow field distribution principle. Then the piezoelectric material modal is analysed to determine its structural dimensions. Next, a mathematical model of electromechanical coupling between the parallel piezoelectric stack and MRD is established, and the simulation model is established to provide a basis for the study of energy recovery and self-sensing performance. Finally, an experimental platform is built: when the external current is 1.2 A, the output damping force is 680 N, and the damper can achieve vibration energy recovery and output power of 0.43 W under the sinusoidal signal with excitation frequency of 5 Hz, and self-sensing of external vibration excitation through the piezoelectric stack output electrical signal.

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基于压电效应的能量回收自敏感磁流变阻尼器设计与性能分析

提出了一种能量回收型自传感磁流变阻尼器(MRD)，该阻尼器采用嵌套式压电陶瓷(PZT)堆叠结构，实现能量回收和自传感。首先，对阻尼器的结构进行了合理设计。其次，结合阻尼器运动特性和流场分布原理，建立了基于mrd的阻尼力模型;然后对压电材料进行模态分析，确定其结构尺寸。其次，建立并联压电堆与MRD之间机电耦合的数学模型，并建立仿真模型，为能量回收和自传感性能的研究提供依据。最后搭建了实验平台:当外加电流为1.2 A时，输出阻尼力为680 N，在激励频率为5 Hz的正弦信号下，阻尼器可实现振动能量回收，输出功率为0.43 W，并通过压电堆输出电信号自感知外部振动激励。

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来源期刊

International Journal of Structural Engineering Engineering-Civil and Structural Engineering

CiteScore

2.40

自引率

23.10%

发文量