Updating of Finite Element Models Including Damping
نویسندگان
چکیده
منابع مشابه
Updating of Finite Element Models
A new optimisation method to find the global minimum of a cost function, named Coupled Local Minimisers (CLM), is presented. In CLM, several local optimisation processes are coupled, i.e. they interact and exchange information, resulting in better solutions than multi-start local optimisation with independent runs. The principal idea of CLM is worked out and illustrated with a mathematical test...
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The characterization of damping is important in making accurate predictions of both the true response and the frequency response of any device or structure dominated by energy dissipation. The process of modeling damping matrices and experimental verification of those is challenging because damping can not be determined via static tests as can mass and stiffness. Furthermore, damping is more di...
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This paper describes the implementation, verification, and comparison of two techniques for updating nonlinear finite-element structural dynamics models using transient time-domain data. The methods are motivated in terms of the intended applications, and the derivations are shown as they relate to the model updating methods for linear finite element models. The application of the two methods t...
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Till now, various models have been proposed in literature to simulate the behavior of riveted structures. In order to find the most accurate analytical method in modeling the dynamic behavior of riveted structures, a comparison study is performed on several of these models, in this research. For this purpose, experimental modal analysis tests are conducted on a riveted plate to verify the effic...
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ژورنال
عنوان ژورنال: Transactions of the Korean Society for Noise and Vibration Engineering
سال: 2012
ISSN: 1598-2785
DOI: 10.5050/ksnve.2012.22.12.1243