Structural finite element model updating by using response surfaces and radial basis functions
Structural finite element model updating by using response surfaces and radial basis functions
复制标题
使用响应面和径向基函数更新结构有限元模型
DOI：
10.1177/1369433216643876
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发表时间：
2016-04
影响因子：
2.6
通讯作者：
Jinping Ou
中科院分区：
文献类型：
--
作者：
Linren Zhou;Lei Wang;Lan Chen;Jinping Ou
大型复杂结构的有限元模型更新涉及大量的参数更新，其中一些参数可能对结构尺寸不敏感。更新它们会浪费计算时间，并且很容易产生假阳性结果。基于径向基函数的响应面模型更新已被证明可以缓解这些问题。本研究旨在进一步验证该方法在实际土木工程结构中的有效性和可行性。以理论结构、室内模型和实际桥梁为例，详细说明了模型修正的过程。讨论了参数选择和更新响应的关键问题。根据模型预测值和实测值之间的差异，提出了一个目标函数。讨论了模型修正解的备选方案，以获得最优解。基于数值模拟、试验研究和实桥应用的结果表明，该方法对大跨度斜拉桥等复杂桥梁模型的修正具有较好的效果，易于在实践中实现。
Updating a finite element model of a large and complex structure involves a large number of updating parameters, some of which may be insensitive to structural measurements. Updating them wastes computing time and easily yields false-positive results. Model updating of response surfaces based on radial basis functions has previously been demonstrated to alleviate these problems. This study was designed to further validate the effectiveness and feasibility of the method for real-world civil engineering structures. The model updating procedure is illustrated in detail using a theoretical structure, a laboratory-scale bridge model, and an actual bridge. The key issues in selecting parameters and responses for updating are discussed. An objective function is proposed based on the differences between model predictions and measured responses. The alternatives of model updating solutions are discussed to obtain an optimal result. On the basis of the numerical simulation, experimental study, and real bridge application, the results indicate that this method works well and can easily be implemented in practice for updating models of complex bridges such as long-span, cable-stayed bridges.
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影响因子：
5.5
作者：
Boris A. Zárate;J. Caicedo
通讯作者：
Boris A. Zárate;J. Caicedo
影响因子：
8.4
作者：
Fang, Sheng-En;Perera, Ricardo
通讯作者：
Perera, Ricardo
影响因子：
2.6
作者：
Hou, Jilin;Jankowski, Lukasz;Ou, Jinping
通讯作者：
Ou, Jinping
DOI：
10.1115/1.2062829
发表时间：
2006
期刊：
Journal of Applied Mechanics
影响因子：
--
作者：
G. Franco;R. Betti;R. Longman
通讯作者：
G. Franco;R. Betti;R. Longman
影响因子：
2.5
作者：
S. Smith;C. Beattie
通讯作者：
S. Smith;C. Beattie