确定薄板在二重特征值处屈曲状态的一种方法*
A Method of Determining Buckled States of Thin Plates at a Double Eigenvalue
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摘要: 本文结合有限元法和摄动法给出了一个确定薄板在二重特征值处分支方向的方法.用此方法,我们对双向受压矩形板在二重特征值处的屈曲状态进行了数值计算,结果表明此方法是可行的.Abstract: A method of determining bifurcation directions at a double eigenvalue is presented by combining the finite element method with the perturbation method. By using the present method, the buckled states of rectangular plates at a double eigenvalue are numerically analyzed. The results show that this method is effective.
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Key words:
- double eigenvalue /
- bifurcation directions /
- FEM /
- perturbation method /
- buckling of rectangular plates
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