Updating of Finite Element Model in Considering Mode Errors with Fuzzy Theory

Yang Liu; Zhongdong Duan; Hui Li

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Updating of Finite Element Model in Considering Mode Errors with Fuzzy Theory

机译：考虑模态误差的有限元模型的模糊修正

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Finite element model updating aims at reconciling the analytical model with the test one, to acquire a refined model with high-fidelity in structural dynamic properties. However, testing data are inevitable polluted by noises. In this study, the mode parameters and design variables are modeled as fuzzy variables, and a fuzzy model updating method is developed. Instead of a single optimal model, a set of satisfactory models is obtained. The most physically compatible solution is sorted by insights to the structures. The proposed method is applied to a real concrete bridge, for which a physically meaningful model is identified.

机译：有限元模型更新的目的是使分析模型与测试模型协调一致，以获得结构动态特性具有高保真度的精细模型。但是，测试数据不可避免地会受到噪声的污染。在这项研究中，将模式参数和设计变量建模为模糊变量，并开发了一种模糊模型更新方法。代替单个最佳模型，获得了一组令人满意的模型。物理上最兼容的解决方案是根据对结构的了解来分类的。所提出的方法应用于实际的混凝土桥梁，为此确定了物理上有意义的模型。

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来源
《Key Engineering Materials》 |2009年第2009期|785-792|共8页
作者
Yang Liu; Zhongdong Duan; Hui Li;
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作者单位

School of transportation science and engineering, Harbin instittute of technology, China, 150090;

School of civil engineering, Harbin instittute of technology, China, 150090;

School of civil engineering, Harbin instittute of technology, China, 150090;

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正文语种 eng
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关键词
structural model updating; fuzzy set theory; fuzzy finite element; sublevel technique; interval sensitivity analysis;

机译：结构模型更新;模糊集理论;模糊有限元次要技术间隔敏感性分析;

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1. Comments on "Prediction of femoral fracture load using automated finite element modeling" by J.H.Keyak et al. and "Prediction of femoral fracture load using finite element models: an examination of stress- and strain-based failure theories" by J.H.Ke [J] . Wang SJ, Wei HW, Chen CS Journal of Biomechanics . 2001,第4期

机译：J.H.Keyak等人的评论“使用自动有限元建模预测股骨骨折负荷”。 J.H. Kee和“使用有限元模型预测股骨骨折负荷：基于应力和应变的破坏理论的检验”
2. Fuzzy finite element model updating of the DLR AIRMOD test structure [J] . H. Haddad Khodaparast, Y. Govers, I. Dayyani, Applied Mathematical Modelling . 2017,第deca期

机译：DLR AIRMOD测试结构的模糊有限元模型更新
3. Inverse propagation of uncertainties in finite element model updating through use of fuzzy arithmetic [J] . Yildirim Serhat Erdogan, Pelin Gundes Bakir Engineering Applications of Artificial Intelligence . 2013,第1期

机译：利用模糊算法更新有限元模型中不确定性的逆传播
4. Updating of Finite Element Model in Considering Mode Errors with Fuzzy Theory [C] . Yang Liu, Zhongdong Duan, Hui Li The 8th International Conference on Damage Assessment of Structures(DAMAS 2009)(第八届结构损伤评价国际学术会议） . 2009

机译：考虑模态误差的有限元模型的模糊修正
5. A finite element model updating technique for correcting global geometric errors using multiple models. [D] . Vining, Charles Roy. 2002

机译：一种使用多个模型校正整体几何误差的有限元模型更新技术。
6. Research on Multi-Alternatives Problem of Finite Element Model Updating Based on IAFSA and Kriging Model [O] . Juntao Kang, Xueqiang Zhang, Hongyou Cao, 2020

机译：基于IAFSA和Kriging模型的有限元模型更新多替代性问题研究
7. Damage severity assessment in wind turbine blade laboratory model through fuzzy finite element model updating [O] . Turnbull Heather, Omenzetter Piotr 2017

机译：通过模糊有限元模型更新评估风机叶片实验室模型的损伤严重程度。
8. Robust model error localization for damage detection and finite element model update [R] . Alvin, K. F. 1995

机译：用于损伤检测和有限元模型更新的鲁棒模型误差定位

Updating of Finite Element Model in Considering Mode Errors with Fuzzy Theory

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