何忠波,柏果,郑佳伟,周景涛,刘国平.柱棒式超磁致伸缩振动能量收集装置建模与实验[J].农业机械学报,2019,50(8):400-409.
HE Zhongbo,BAI Guo,ZHENG Jiawei,ZHOU Jingtao,LIU Guoping.Modeling and Experiment of Column type Giant Magnetostrictive Vibration Energy Harvesting Device[J].Transactions of the Chinese Society for Agricultural Machinery,2019,50(8):400-409.
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柱棒式超磁致伸缩振动能量收集装置建模与实验   [下载全文]
Modeling and Experiment of Column type Giant Magnetostrictive Vibration Energy Harvesting Device   [Download Pdf][in English]
投稿时间:2019-05-14  
DOI:10.6041/j.issn.1000-1298.2019.08.045
中文关键词:  超磁致伸缩  振动能量收集  线圈优化  有限元分析  实验
基金项目:国家自然科学基金项目(51275525)
作者单位
何忠波 陆军工程大学 
柏果 陆军工程大学 
郑佳伟 32184部队 
周景涛 陆军工程大学 
刘国平 陆军工程大学 
中文摘要:针对目前超磁致伸缩式振动能量收集在理论研究上的不足,根据超磁致伸缩材料的材料特性,设计了一种柱棒式超磁致伸缩能量收集装置(GMEHD),并对其工作原理进行了阐述。结合GMEHD的结构特点,建立了装置的输入输出模型,推导了输出电压计算公式,对系统在正弦激励下的响应进行了求解;根据线圈结构,通过电路分析,对线圈匝数进行了优化。利用仿真软件COMSOL Multiphysics,建立了GMEHD有限元模型,得到其仿真结果。在上述基础上制作了GMEHD样机,搭建了实验测试系统,得到了不同频率正弦力作用下GMEHD输出电动势曲线,并与模型计算值和仿真结果进行了对比。结果表明:在1、10、50Hz单位正弦激励下,GMEHD输出电动势幅值分别为2、15、75mV,相位超前于输入力π/2。实验与模型计算和仿真分析结果基本吻合,验证了模型的准确性,为GMEHD优化设计提供了参考依据。
HE Zhongbo  BAI Guo  ZHENG Jiawei  ZHOU Jingtao  LIU Guoping
Army Engineering University,Army Engineering University,Unit 32184 of PLA,Army Engineering University and Army Engineering University
Key Words:giant magnetostriction  vibration energy harvesting  coil optimization  finite element analysis  experiment
Abstract:Vibration energy harvesting technology is an important way to alleviate energy pressure and has broad application prospects in the field of power supply for micro devices. The giant magnetostrictive vibration energy harvesting technology has attracted attention with the excellent performance of giant magnetostrictive materials (GMM). In view of the shortcomings of the current theoretical research on giant magnetostrictive vibration energy harvesting, a column type giant magnetostrictive energy harvesting device (GMEHD) was designed based on the material properties of GMM, and its working principle was introduced. The input and output model of the device was established and the output voltage calculation formula was derived combining with the structural characteristics of GMEHD. The response of the system under sinusoidal excitation was solved. According to the coil structure, the coil turns were optimized through circuit analysis. The finite element model of GMEHD was established by simulation software COMSOL Multiphysics and the simulation results were obtained. GMEHD was made on the basis of the above. The prototype test system was built, and the GEMHD output electromotive force time curve under different frequency sinusoidal forces was obtained, and compared with the model calculation value and simulation results. The results showed that under the sinusoidal excitation of 1Hz, 10Hz and 50Hz, the GEMHD output electromotive force amplitudes were 2mV, 15mV and 75mV, respectively, and the phase ahead the input force π/2. The model calculation and simulation value fitted well, which verified the accuracy of the model and provided a reference for the next step in the optimization design.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

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