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Structure estimation for systems described by radial basis functions based on normalized QR filtering
Kadlec, Jiří
The recursive algorithm for the estimation of the variable radial base structure based on the QA algorithm with the exponential forgetting, is presented for the radial-bases regression model in the parallel QA implementations. The algorithm is suitable also for the concurrent estimation of the model structure. It allows a highly modular implementation convenient for the parallel computation, what makes it suitable for the fast on line implementation in the area of nonlinear beame forming, etc.
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Identification of tram wheel with vibro-dissipation layer
Pešek, Luděk ; Veselý, Jan ; Podruh, J.
The wheels as vibration transformation elements and noise emitters substantially contribute to the total noise level of riding vehicle. We aimed at investigation of dynamic behavior of railway tram wheel with a special construction. This wheel has a rim separated from disk by rubber cushioning. The selected dynamic parameters of the wheel are modal, frequency and damping characteristics. Proportional damping was implemented into rubber layer of FE wheel model as the first approximation of dissipation behavior.
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