Finite Element Model Updating in Structural Dynamics

Finite element model updating has emerged in the 1990s as a subject of immense importance to the design, construction and maintenance of mechanical systems and civil engineering structures. 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. It covers all aspects of model preparation and data acquisition that are necessary for updating. The various methods for parameter selection, error localisation, sensitivity and parameter estimation are described in detail and illustrated with examples. The examples can be easily replicated and expanded in order to reinforce understanding. The book is aimed at researchers, postgraduate students and practising engineers.

Contenu

1. Introduction.- 2. Finite Element Modelling.- 3. Vibration Testing.- 4. Comparing Numerical Data with Test Results.- 5. Estimation Techniques.- 6. Parameters for Model Updating.- 7. Direct Methods using Modal Data.- 8. Iterative Methods using Modal Data.- 9. Methods using Frequency Domain Data.- 10. Case Study: An Automobile Body.- 11. Discussion and Recommendations.