Three methods are presented to reduce the influence of measurement errors in parameter estimation in finite element model updating for structural health monitoring and damage assessment. First, a method using the Fisher information matrix is developed to choose an efficient set of measurement locations. This ensures efficient setup of a non-destructive test for finite element model updating for...

Abstract While finite element (FE) modeling is widely used for ultimate strength assessments of structural systems, incorporating complex distortions and imperfections into FE models remains a challenge. Conventional methods typically rely on assumptions about the periodicity through spectral or modal methods. However, these approaches are not viable under many realistic scenarios where invalid...

A new optimisation method to find the global minimum of a cost function, named Coupled Local Minimisers (CLM), is presented. In CLM, several local optimisation processes are coupled, i.e. they interact and exchange information, resulting in better solutions than multi-start local optimisation with independent runs. The principal idea of CLM is worked out and illustrated with a mathematical test...