A review on model updating in structural dynamics
A review on model updating in structural dynamics
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DOI：
10.1088/1757-899x/100/1/012015
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发表时间：
2015-12
期刊：
影响因子：
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通讯作者：
N. Abdullah;M. Sani;Md Mamunur Rahman;I. Zaman
中科院分区：
文献类型：
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作者：
N. Abdullah;M. Sani;Md Mamunur Rahman;I. Zaman
本文综述了结构动力学模型修正的相关研究成果。本文旨在介绍和解释模型修正领域的重要概念，并对该领域的研究进展和现有的指导思想和方法进行综述。本文综述了结构动力学中有限元模型修正的一般概念和有限元方法作为模型修正工具的能力。在介绍了模型修正的概念之后，讨论了模型修正的可靠方法、模型修正的局限性和关键问题。讨论了修正不精确有限元模型的局限性和存在的问题。这导致了参数化和正则化的问题，在选择更新参数的局限性和不确定性被证明是能够克服的。建议进一步研究如何消除来自测量和有限元模型的系统误差，以提供更可靠的模型修正。
This paper is a review of information and related studies concerning topic of model updating in structural dynamics. It is purposed to introduce and explain the important concept of the discussed subject in model updating area as well as to summarize the development and available guidance and method of conducting the study in this area. The review is structured by presenting an overview of general concept of finite element model updating in structural dynamics and the capabilities of finite element method as a tool in model updating. After the concept introduction, the reliable methodology to perform model updating, the limitation and the critical issues in model updating is discussed. The limitation and problems arise concerning correcting inaccurate finite element model is also discussed. This lead to issue of parameterization and regularization which the limitation and uncertainty in choosing the updating parameter is shown able to be overcome. Further studies on the elimination of systematic errors from both the measurements and the finite element model so that it can provide more reliable model updating is recommended.