| 一种利用静力试验数据修正有限元模型的方法 |
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| 引用本文： | 李书,冯太华.一种利用静力试验数据修正有限元模型的方法[J].应用力学学报,1995,12(3):52-56. |
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| 作者姓名： | 李书 冯太华 |
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| 作者单位： | 南京航空航天大学 |
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| 摘 要： | 基于代数特征值逆问题理论，提出了一种利用静力试验数据修正有限元模型方法。由于修正后的模型为满阵，根据有限元模型的力学特征对修正后的模型加以约束，使其不仅是对称的，而且还保持稀疏、带状特性，其计算过程简洁，计算结果表明该方法可靠，效果令人满意。
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| 关 键 词： | 结构模型，有限元方法，逆问题 |
A Method for Correction of Finite Element Model by Using Test Data |
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| Li Shu,Feng Taihua.A Method for Correction of Finite Element Model by Using Test Data[J].Chinese Journal of Applied Mechanics,1995,12(3):52-56. |
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| Authors: | Li Shu Feng Taihua |
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| Institution: | Nanjing University of Aetonautics and Astronautics |
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| Abstract: | Based on the theory of inverse algebraic eigenvalue problem, a method for correction finite ele-ment model by using test data is presented in this paper. The corrected model is a full and symmetricmatrices,which is restrained according to the mechanics characteristic of finite element model,bandedand sparse status of the model can be restrained after correction.Numerical examples show that themethod is reliable and the effect is satisfactory. |
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| Keywords: | structural model finite element methods inverse problem |
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