Montazeri, Allahyar and Poshtan, Javad and Choobdar, Amir (2005) Robust identification and modeling of a simply-supported flexible beam. In: 12th International Congress on Sound and Vibration 2005, ICSV 2005. 12th International Congress on Sound and Vibration 2005, ICSV 2005 . UNSPECIFIED, PRT, pp. 5374-5381. ISBN 9781627481496
Full text not available from this repository.Abstract
In this paper a non-stationary stochastic embedding technique is used for identification and modeling of a simply-support flexible beam between two collocated points in the presence of measurement noise in the system. In comparison with standard identification methods which give only a model for the true system, this procedure tries to delivers a tight bound on uncertainties of the identified model of the beam and for this purpose it is required to introduce some basis functions. In this application knowing some prior information about the resonant nature of the system, second order basis functions are used for identification of nominal model using least-square estimation method, and integrated random-walk process is used to model uncertainties. The identified model as well as its accompanied uncertainty region can be used as the input of robust controller design methods like Minimax LQG, H2 and H∞ controllers.