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Joint input-response predictions in structural dynamics

Book Contribution - Book Chapter Conference Contribution

The problem of jointly estimating the input forces and states of a structure from a limited number of acceleration measurements is addressed. Utilizing a model-based joint input-state estimation algorithm originally developed for optimal control problems, minimum-variance unbiased estimates of the modal displacements and velocities of a structure as well as the dynamic forces causing these responses, are obtained. The proposed algorithm requires no prior information on the dynamic evolution of the input forces, is easy to implement, and allows online application. Its accuracy and effectiveness are demonstrated using data from an in situ experiment on a footbridge.
Book: Proceedings of the 8th International Conference on Structural Dynamics EURODYN 2011
Pages: 2543 - 2548
Publication year:2011
Authors from:Higher Education