Structural finite element model updating using transfer function data

Authors:
A. Esfandiari;F. Bakhtiari-Nejad;M. Sanayei;A. Rahai
Affiliations:
Amirkabir University of Technology, 424, Hafez Ave., Tehran, Iran and Tufts University, Department of Civil and Environmental Engineering, 200 College Ave, Medford, MA, 02155 USA;Amirkabir University of Technology, 424, Hafez Ave., Tehran, Iran;Tufts University, Department of Civil and Environmental Engineering, 200 College Ave, Medford, MA, 02155 USA;Amirkabir University of Technology, 424, Hafez Ave., Tehran, Iran
Venue:
Computers and Structures
Year:
2010

Citing 0
Cited 2

Detection of damage in cyclic structures using an eigenpair sensitivity matrix

Computers and Structures
Structural identification (St-Id) using finite element models for optimum sensor configuration and uncertainty quantification

Finite Elements in Analysis and Design

Quantified Score

Hi-index	0.00

Visualization

Abstract

A new method is presented for the finite element model updating of structures at the element level utilizing Frequency Response Function data. Response sensitivities with respect to the change of mass and stiffness parameters are indirectly evaluated using the decomposed form of the FRF. Solution of these sensitivity equations through the Least Square algorithm and weighting of these equations has been addressed to achieve parameter estimation with a high accuracy. Numerical examples using noise polluted data confirm that the proposed method can be an alternative to conventional model updating methods even in the presence of mass modeling errors.