関西支部講演会講演論文集
Online ISSN : 2424-2756
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226 周期的磁場変動を受ける導体円柱の電磁熱弾性解析
樋口 理宏河村 隆介谷川 義信
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会議録・要旨集 フリー

p. _2-57_-_2-58_

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In the present article a theoretical treatment of magnetothermoelastic stresses and deformations is dealt with in a conducting solid circular cylinder subjected to both internal heat generation due to eddy current loss and Lorentz force by a cyclic variation in time of magnetic field. We assume that a uniform magnetic field whose intensity varies sinusoidally in time acts on the cylinder in a direction parallel to its surface. First, a plane axisymmetrical magnetic field and the associated eddy current in the cylinder due to electromagnetic induction are formulated based on the theory of quasi-stationary electromagnetic field. Next, magnetothermoelastic stresses and deformations in a conducting solid cylinder which is subjected to both a plane axisymmetrical temperature change due to eddy current loss and the Lorentz force are analyzed under the generalized plane strain condition. Finally, we carry out numerical calculations and examine an effect of the frequency in cyclic variation of magnetic field on the electro-magnetic field, current density, temperature change and magnetothermoelastic stress and deformation in the cylinder.
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© 2003 一般社団法人 日本機械学会
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