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MULTI-FIELD COUPLING BEHAVIOR OF SIMPLY-SUPPORTED CONDUCTIVE PLATE UNDER THE CONDITION OF A TRANSVERSE STRONG IMPULSIVE MAGNETIC FIELD
作者姓名:Zhu  Linli  Zhang  Jianping  Zheng  Xiaojing
作者单位:Department of Mechanics and Engineering Science,Lanzhou University,Lanzhou 730000,China
摘    要:In order to study the multi-field coupling mechanical behavior of the simply-supported conductive rectangular thin plate under the condition of an externally lateral strong impulsive magnetic field, that is the dynamic buckling phenomenon of the thin plates in the effect of the magnetic volume forces produced by the interaction between the eddy current and the magnetic fields, a FEM analysis program is developed to characterize the phenomena of magnetuelastic buckling and instability of the plates. The critical values of magnetic field for the three different initial vibrating modes are obtained, with a detailed discussion made on the effects of the length-thickness ratio a/h of the plate and the length-width ratio a/b as well as the impulse parameterτon the critical value BOcr of the applied magnetic field.

关 键 词:多场耦合  传导薄板  冲击磁场  涡流  动态压曲  磁场力
收稿时间:2005-07-13
修稿时间:2006-04-30

MULTI-FIELD COUPLING BEHAVIOR OF SIMPLY-SUPPORTED CONDUCTIVE PLATE UNDER THE CONDITION OF A TRANSVERSE STRONG IMPULSIVE MAGNETIC FIELD
Zhu Linli Zhang Jianping Zheng Xiaojing.MULTI-FIELD COUPLING BEHAVIOR OF SIMPLY-SUPPORTED CONDUCTIVE PLATE UNDER THE CONDITION OF A TRANSVERSE STRONG IMPULSIVE MAGNETIC FIELD[J].Acta Mechanica Solida Sinica,2006,19(3):203-211.
Authors:Zhu Linli  Zhang Jianping  Zheng Xiaojing
Institution:1. Art University of Isfahan, Isfahan, Iran;2. Azad University-Tehran Branch, Iran
Abstract:In order to study the multi-field coupling mechanical behavior of the simply-supported conductive rectangular thin plate under the condition of an externally lateral strong impulsive magnetic field, that is the dynamic buckling phenomenon of the thin plates in the effect of the magnetic volume forces produced by the interaction between the eddy current and the magnetic fields, a FEM analysis program is developed to characterize the phenomena of magnetoelastic buckling and instability of the plates. The critical values of magnetic field for the three different initial vibrating modes are obtained, with a detailed discussion made on the effects of the lengththickness ratio a/h of the plate and the length-width ratio a/b as well as the impulse parameter τ on the critical value Bocr of the applied magnetic field.
Keywords:multi-field coupling  conductive thin plate  impulsive magnetic field  eddy current  dynamic buckling  magnetic volume forces
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