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偏压电场作用下磁电弹板中Lamb波传播研究
引用本文:聂国权,安子军,刘金喜.偏压电场作用下磁电弹板中Lamb波传播研究[J].固体力学学报,2009,30(4).
作者姓名:聂国权  安子军  刘金喜
作者单位:1. 燕山大学机械工程学院,秦皇岛,066004;石家庄铁道学院工程力学系,石家庄,050043
2. 燕山大学机械工程学院,秦皇岛,066004
3. 石家庄铁道学院工程力学系,石家庄,050043
基金项目:国家自然科学基金项目,河北省自然科学基金项目 
摘    要:基于磁电弹性材料的本构关系和运动微分方程,研究了磁电弹板中Lamb波的传播特性.在电磁开路和短路两种边界条件下,导出了偏压电场作用下磁电弹板中Lamb波的对称模态和反对称模态的相速度方程,求解了相应的应力场.通过数值算例分析了偏压电场对相速度和应力场的影响.结果表明,偏压电场对相速度有较大影响,对应力场几乎没有影响.研究成果可为设计磁电换能器提供一定的理论参考.

关 键 词:磁电弹材料  Lamb波  对称模态  反对称模态  偏压电场

PROPAGATION OF LAMB WAVES IN MAGNETOELECTROELASTIC PLATES UNDER A BIASING ELECTRIC FIELD
Guoquan Nie,Zijun An,Jinxi Liu.PROPAGATION OF LAMB WAVES IN MAGNETOELECTROELASTIC PLATES UNDER A BIASING ELECTRIC FIELD[J].Acta Mechnica Solida Sinica,2009,30(4).
Authors:Guoquan Nie  Zijun An  Jinxi Liu
Institution:1College of Mechanical Engineering;Yanshan University;Qinhuangdao;066004;2Department of Engineering Mechanics;Shijiazhuang Railway Institute;Shijiazhuang;050043
Abstract:Propagation of Lamb waves in an infinite magnetoelectroelastic plate under a biasing electric field is studied.Based on the two-dimensional magnetoelectroelastic constitutive relations,the governing equations of this problem are established.The phase velocity and stress fields of the symmetric and antisymmetric wave modes under the conditions of electric-magnetic open and shorted are derived.The effects of biasing electric field on phase velocity and stress fields are also discussed.The numerical results sh...
Keywords:magnetoelectroelastic material  Lamb waves  symmetric mode  antisymmetric mode  biasing electric field  
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