Numerical Study on Identification of Time Varying Parameters of Vibration Systems | Zendy

Yanchun Liang | Zendy; Qiang Zhen | Zendy; Zaishen Wang | Zendy

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Numerical Study on Identification of Time Varying Parameters of Vibration Systems

Author(s) -

Yanchun Liang,

Qiang Zhen,

Zaishen Wang

Publication year - 1997

Publication title -

shock and vibration

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.418

H-Index - 45

eISSN - 1875-9203

pISSN - 1070-9622

DOI - 10.1155/1997/495860

Subject(s) - nonlinear system , lti system theory , control theory (sociology) , identification (biology) , vibration , system identification , linear system , least squares function approximation , linear model , mathematics , term (time) , computer science , mathematical analysis , statistics , physics , data modeling , acoustics , artificial intelligence , botany , control (management) , quantum mechanics , database , estimator , biology

An on-line least squares algorithm has previously been successfully applied to linear vibration systems in order to identify time varying parameters. In this article the limitations of the approach and the factors affecting the identification are further examined. The existence of the nonlinear term is determined by means of the time varying characteristics of the estimated linear parameters using the linear model and the data from a time invariant nonlinear system. The identification of the time varying linear parameters is also examined in accordance with the linear model by using the data with nonlinear elements.

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