Structural finite element model updating using transfer function data

Materials in machine tool structures

“…Esfandiari et al proposed a FE model updating by use of frequency response function data [82]. In Ref.…”

A New Direct Method for Updating Mass and Stiffness Matrices with No Spillover

“…In a class of model updating methods using measured frequency response functions (FRF), the FE models are updated based on the fully damped response along a frequency axis and not on an estimated set of modal data. Most of the FRF-based model updating techniques relied on expression of the system matrices as a polynomial of system parameters; for example, see [13][14][15]. The FEMU can also be performed with computational intelligence algorithms, such as neural networks, genetic algorithms, particle-swarm optimization, simulated annealing, and so on [16,17].…”

Finite element model updating of damped structures using vibration test data under base excitation

“…Later in [14], measured strain data were used to get the transfer function needed by the updating, but the transformation process was too complicated for complex actual structures. In [15] the derivation of sensitivity matrix was based on the error residuals between modal errors, which make the updating method based on transfer function to be preceded by modal test data. That is very creative.…”