广义逆法修正结构有限元动力模型

CORRECTION OF FINITE ELEMENT DYNAMIC MODELS USING GENERALIZED INVERSE TECHNIQUE

摘要: 本文利用求非完备振型集[φ]_n×m(m≤n)的Moore-Penrose广义逆,导出一组关于结构有限元动力模型[K_A]、[M_A]的修正公式。算例表明:本文的修正方法可明显改善理论分析模型的计算精度。
- 广义逆 /
- 有限元 /
- 模型修正 /
- 模态试验
Abstract: In this parper, a modified procedure for correction of finite element dynamic models of structures is presented by using generalized inverse techniques. Numerical examples show the presented procedure may effectively improve the analysis model.
- generalized inverse /
- finite element /
- model-correction /
- modal test