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• W1990902011 abstract "Abstract Identification of mechanical elastic systems under dynamic actions is studied in a time-domain context. It is shown that the behaviour of such systems can be modelled with difference equations which reduce to a very simple form when one-input or free vibration cases are considered. Statistical analysis of error terms leads to well known models like ARMAX, ARMA and AR. The coefficients of these models are evaluated by two approaches, namely the method of least squares and the method of approximate maximum likelihood; the former is more suitable for free vibrations and the latter for forced vibration case. The eigenvalues and eigenvectors of the system are then evaluated from identified ARMAX, ARMA or AR models. Useful information on the actual performance of the methods is acquired by application of the derived algorithms for identification of modal values from artificial and experimental data." @default.
• W1990902011 created "2016-06-24" @default.
• W1990902011 creator A5011123083 @default.
• W1990902011 date "1989-04-01" @default.
• W1990902011 modified "2023-09-24" @default.
• W1990902011 title "Difference models for identification of mechanical linear systems in dynamics" @default.
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• W1990902011 doi "https://doi.org/10.1016/0888-3270(89)90014-9" @default.
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