Boundary Element Method for Buckling Eigenvalue Problem and Its Convergence Analysis
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摘要: 讨论了屈曲特征值问题的定解条件,建立了相应的具约束的积分方程组及带Lagrange乘子的边界变分方程,给出了解的存在唯一性定理。建立了相应的边界元方法并讨论了近似解的误差估计。文末给出了数值算例。
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关键词:
- Lagrange乘子法 /
- 边界元方法 /
- Sobolev空间
Abstract: The conditions for determining solution of buckling eigenvalue problem are discussed. The corresponding system of integral equations with constraint conditions and boundary variational equations with Lagrange multiplier are established. The theorems on the existence and uniqueness of the solution for these problems are given. The corresponding boundary element method is constructed and the error estimation for the approximation solution is obtained. Finally the numerical example is give.-
Key words:
- Lagrange multiplier /
- BEM /
- Sobolev space
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