摘要
研究表明,有限尺寸效应是影响板——梁磁弹性稳定性分析精度的主要原因。本文用边界元法分析了板边沿的磁感强度集中,然后用里兹法计算了软铁磁材料悬臂板——梁的临界屈曲磁场。通过和Moon-Pao的理论和实验结果以及Miga的有限元结果比较,表明本方法具有良好的精度,且计算方法简便。
It was shown that the finite size effect on the magnetoelastic buckling of a thin beam-plate is essential. In this paper, the BEM is used to analyse the magnetic field concentration near an edge of the finite specimen. Then the buckling fields Bc of the soft ferromagnetic and elastic cantilevered beamplates are calculated by Ritz Method. In comparison with Moon-Pao's theoretical and experimental results, as well as Miya's FEM solutions, it is found that this is a simple and convenient method with good accuracy.
出处
《应用力学学报》
CAS
CSCD
北大核心
1991年第4期113-117,138,共5页
Chinese Journal of Applied Mechanics
