Identification of multiple localized forces on a footbridge

Identification of multiple localized forces on a footbridge

Maes, K.
Lourens, E.
Van Nimmen, K.
Reynders, E.
Van den Broeck, P.
Guillaume, P.
De Roeck, G.
Lombaert, G.

Civil Engineering and Geosciences

Hydraulic Engineering

2013-05-13

An existing joint input-state estimation algorithm is extended for applications in structural dynamics. The estimation of the input and the system states is performed in a minimum-variance unbiased way, based on a limited number of response measurements and a system model. An additional method is proposed to identify the noise statistics, which are needed for the joint input-state estimation procedure and which can be used to quantify the uncertainty on the estimated forces and system states. The proposed methodology is illustrated using data from an in situ experiment on a footbridge.

force identification
state estimation
noise statistics
uncertainty interval

http://resolver.tudelft.nl/uuid:1ec4d704-724c-46b9-8a72-48c6139e8960

IOMAC 2013: 5th International Operational Modal Analysis Conference, Guimaraes, Portugal, 13-15 May 2013

Institutional Repository

conference paper

(c) 2013 The Author(s)