0.3Dy0.7Fe2合金壓磁效應的影響，討論了單獨應力和單獨磁場作用下磁致伸縮材料內磁通密度的變化特性；其次，提出了基于預加載荷方法和基于沖擊應力方法的理論模型思路，并分別探討了2種模型建立方法在復合式能量采集器設計中最大壓磁系數獲取的準則；最后，完成了能量采集器的大壓磁系數獲取方法的可靠性試驗，實驗結果與理論設計的結果吻合較好。該模型能夠快速、準確地獲得不同應用環(huán)境下復合式能量采集器的壓磁特性，并可用于獲取大壓磁系數的復合式能量采集器構造及設計。"/>

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面向磁致伸縮-電磁復合式能量采集器的壓磁效應模型
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作者單位:

1.廣東工業(yè)大學 自動化學院，廣東 廣州 510006;2.哈爾濱工業(yè)大學 電氣工程及自動化學院，黑龍江 哈爾濱 150001

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基金項目:

Natural Science Foundation of Guangdong Province (Grant No. 2018A030313010)


Modeling of Piezomagnetic Effect for Magnetostrictive-Electromagnetic Hybrid Vibration Energy Harvester
Author:
Affiliation:

1.School of Automation, Guangdong University of Technology, Guangzhou 510006, China;2.School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, China

Fund Project:

Natural Science Foundation of Guangdong Province (2018A030313010)

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    摘要:

    提出了一種簡化的、能指導復合式能量采集器中磁致伸縮發(fā)電效應、電磁發(fā)電效應的最優(yōu)性能輸出的理論模型。在模型的建立過程中，首先研究了應力和磁場對Tb0.3Dy0.7Fe2合金壓磁效應的影響，討論了單獨應力和單獨磁場作用下磁致伸縮材料內磁通密度的變化特性；其次，提出了基于預加載荷方法和基于沖擊應力方法的理論模型思路，并分別探討了2種模型建立方法在復合式能量采集器設計中最大壓磁系數獲取的準則；最后，完成了能量采集器的大壓磁系數獲取方法的可靠性試驗，實驗結果與理論設計的結果吻合較好。該模型能夠快速、準確地獲得不同應用環(huán)境下復合式能量采集器的壓磁特性，并可用于獲取大壓磁系數的復合式能量采集器構造及設計。

    Abstract:

    A simplified computational model for obtaining large piezomagnetic effect of magnetostrictive-electromagnetic hybrid vibration energy harvester was presented. During the model establishment, the influence of compressive stress ?σ and magnetic field ΔH on the piezomagnetic effect of Tb0.3Dy0.7Fe2 alloy was studied, and their separate influence on magnetic flux density ?B of magnetostrictive material was investigated. Then, two methods, pre-loads-based method and impact stress-based method, were used to discuss the optimal criterion of hybrid piezomagnetic effect for the fabrication of magnetostrictive-electromagnetic generator. Finally, the modeling accuracy for obtaining large piezomagnetic effect was testified, and the experiment and theoretical results were in good agreement. Results show that the modeling can efficiently and accurately obtain the piezomagnetic effect for hybrid magnetostrictive material-based harvester under different application environments, which is of significance for design and fabrication of magnetostrictive-electromagnetic hybrid vibration energy harvester for obtaining large piezomagnetic effect.

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嚴柏平,洪俊杰,張成明.面向磁致伸縮-電磁復合式能量采集器的壓磁效應模型[J].稀有金屬材料與工程,2021,50(9):3133~3138.[Yan Baiping, Hong Junjie, Zhang Chengming. Modeling of Piezomagnetic Effect for Magnetostrictive-Electromagnetic Hybrid Vibration Energy Harvester[J]. Rare Metal Materials and Engineering,2021,50(9):3133~3138.]
DOI：10.12442/j. issn.1002-185X.20200569

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  • 收稿日期:2020-08-05
  • 最后修改日期:2020-08-25
  • 錄用日期:2020-09-02
  • 在線發(fā)布日期: 2021-09-26
  • 出版日期: 2021-09-24