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偏置磁场对磁致伸缩/弹性/压电层合材料磁电效应的影响

阳昌海 文玉梅 李 平 卞雷祥

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偏置磁场对磁致伸缩/弹性/压电层合材料磁电效应的影响

阳昌海, 文玉梅, 李 平, 卞雷祥

Influence of bias magnetic field on magnetoelectric effect of magnetostrictive/elastic/piezoelectric laminated composite

Yang Chang-Hai, Wen Yu-Mei, Li Ping, Bian Lei-Xiang
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  • 根据磁致伸缩材料的非线性本构关系得到其动态杨氏弹性模量和动态压磁系数,结合等效电路法得到磁致伸缩/弹性/压电层合材料的磁电效应与磁致伸缩材料的动态杨氏弹性模量和动态压磁系数的关系,讨论了偏置磁场对这种层合材料的谐振频率和谐振磁电电压转换系数的影响.理论推导和实验结果均表明,存在最佳偏置磁场使磁致伸缩/弹性/压电层合材料的谐振磁电电压转换系数最大.
    The dynamic Young's modulus of elasticity and the dynamic piezomagnetic coefficient of magnetostrictive material are derived based on the nonlinear constitutive model of magnetostrictive material. Based on the equivalent circuit method, the relation between magnetoelectric effect of the laminated composite and the dynamic Young's modulus of elasticity, and the dynamic piezomagnetic coefficient of magnetostrictive material is established. The influences of bias magnetic field on the resonant frequencies and the resonant magnetoelectric voltage coefficients of the laminated composite are discussed. The theoretical analysis and the experimental results indicate that there is an optimal bias magnetic field at which the resonant magnetoelectric voltage coefficient of the laminated composite reaches its maximum.
    • 基金项目: 国家自然科学基金(批准号:NASF10776039,50677072)和国家高技术研究发展计划(863计划)(批准号:2006AA04Z337)资助的课题.
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  • 文章访问数:  9102
  • PDF下载量:  1609
  • 被引次数: 0
出版历程
  • 收稿日期:  2007-10-30
  • 修回日期:  2008-02-25
  • 刊出日期:  2008-11-20

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