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Considering continuous support conditions in moving force identification

Chan, Tommy H.T. & Ashebo, Demeke B. (2004) Considering continuous support conditions in moving force identification. In Zingoni, A. (Ed.) Journal of Sound and Vibration, A.A. Balkema, Cape Town, Africa, pp. 871-875.

Abstract

A method is presented to identify moving forces on a continuous bridge. The bridge is modeled as a continuous supported Bernoulli-Euler beam and the boundary value problem of the beam is solved to get the exact mode shape functions of vibrating beam with inner supports. The bending moment responses are used to study the inverse problem in identifying moving forces on a bridge. The SVD (singular value decomposition) is used in the solution to study the inverse problem. Two time varying forces moving over the bridge are simulated to evaluate the method. White noise is added to simulated bending moment responses to study the effect of noise in moving forces identification problem for different numbers and arrangements of sensors. Results obtained from simulation study show that the method is effective in identifying moving forces and acceptable results can be obtained.

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ID Code: 12773
Item Type: Conference Paper
Additional Information: For more information, please refer to the conference’s website (see hypertext link) or contact the author.
Additional URLs:
Keywords: moving force identification, bending moment responses, time domain method
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Structural Engineering (090506)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Urban Development
Copyright Owner: Copyright 2004 A.A. Balkema
Deposited On: 03 Mar 2008
Last Modified: 10 Aug 2011 23:04

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