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首页> 外文期刊>Multidiscipline modeling in materials and structures >Buckling and vibration analysis of layered and multiphase magneto-electro-elastic cylinders subjected to uniform thermal loading
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Buckling and vibration analysis of layered and multiphase magneto-electro-elastic cylinders subjected to uniform thermal loading

机译：均热载荷作用下的层状多相磁电弹性圆柱体的屈曲和振动分析

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摘要

Purpose - The purpose of the paper is to investigate the linear thermal buckling and vibration analysis of layered and multiphase magneto-electro-elastic (MEE) cylinders made of piezoelectric/piezomagnetic materials using finite element method.Design/methodology/approach - The constitutive equations of MEE materials are used to derive the finite element equations involving the coupling between mechanical, electrical, magnetic and thermal fields. The present study is limited to clamped-clamped boundary conditions. The linear thermal buckling is carried out for an axisymmetric cylinder operating in a steady state axisymmetric uniform temperature rise. The influence of stacking sequences and volume fraction of multiphase MEE materials on critical buckling temperature and vibration behaviour is investigated. The influence of coupling effects on critical buckling temperature and vibration behaviour is also studied. Findings - The critical buckling temperature is higher for MEE axisymmetric cylinder as compared to elastic cylinder.Originality/value - Linear thermal buckling and vibration analysis of MEE axisymmetric cylinders are studied using the finite element approach. The structure can be used for active vibration control, sensors and actuators. Studying the buckling and vibration behaviour of such structures and influence of coupling effect is extremely useful for the design of magnetoelectroelastic structures.
机译：目的-本文的目的是使用有限元方法研究由压电/压电材料制成的多层和多相磁电弹性（MEE）圆柱体的线性热屈曲和振动分析。设计/方法/方法-本构方程MEE材料的数量被用来导出涉及机械，电场，磁场和热场之间耦合的有限元方程。本研究仅限于夹紧边界条件。对于在稳态轴对称均匀温度上升下运行的轴对称圆柱体执行线性热屈曲。研究了多相MEE材料的堆垛顺序和体积分数对临界屈曲温度和振动行为的影响。还研究了耦合效应对临界屈曲温度和振动行为的影响。发现-MEE轴对称圆柱的临界屈曲温度高于弹性圆柱。原始值/值-使用有限元方法研究了MEE轴对称圆柱的线性热屈曲和振动分析。该结构可用于主动振动控制，传感器和执行器。研究此类结构的屈曲和振动行为以及耦合效应的影响对于磁电弹性结构的设计非常有用。

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