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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/40730

Title: Application of the Characteristic Time Expansion Method for Estimating Nonlinear Restoring Forces
Authors: Yung-Wei Chen
Contributors: 國立臺灣海洋大學:輪機工程學系
Date: 2013
Issue Date: 2017-02-06T06:49:08Z
Publisher: Journal of Applied Mathematics
Abstract: Abstract:This paper proposes a characteristic time expansion method (CTEM) for estimating nonlinear restoring forces. Because noisy data and numerical instability are the main causes of numerical developing problems in an inverse field, a polynomial to identify restoring forces is usually adopted to eliminate these problems. However, results of the way doing are undesirable for a high order of polynomial. To overcome this difficulty, the characteristic length (CL) is introduced into the power series, and a natural regularization technique is applied to ensure numerical stability and determine the existence of a solution. As compared to previous solutions presented in other researches, the proposed method is a desirable and accurate solver for the problem of restoring the force in the inverse vibration problems.
Relation: 2013, Article ID 841690, pp.1-13
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/40730
Appears in Collections:[輪機工程學系] 期刊論文

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