Finite element model updating in structural dynamics


24-Dec-2017 07:39

It is part of verification and validation of numerical models.

The process is conducted by first choosing the domain in which data is presented.

finite element model updating in structural dynamics-84

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This book, the first on the subject, sets out to explain the principles of model updating, not only as a research text, but also as a guide for the practising engineer who wants to get acquainted with, or use, updating techniques.

The third task is to formulate a function which has the parameters that are expected to be design variables, and which represents the distance between the measured data and the finite element model predicted data.

The fourth step is to implement the optimization method to identify parameters that minimize this function.

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.With the response surface at hand, an optimization problem is formulated explicitly.Hence, no FE calculation is required in each optimization iteration.This book, the first on the subject, sets out to explain the principles of model updating, not only as a research text, but also as a guide for the practising engineer who wants to get acquainted with, or use, updating techniques.