Identification of a stochastic model for bolted joints

H. Jalali, H. Haddad Khodaparast, M. I. Friswell

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this paper an FE model of the contact interface in a bolted structure is considered. The paper demonstrates how the uncertainty may be represented in the contact interfaces and investigates these uncertainty effects in the dynamic responses of the structure, e.g. natural frequencies. The contact interface is modelled using stochastic material properties to account for the variability in contact parameters, i.e. surface roughness and preload effects. A simplified stochastic dynamic model is then used, and the parameters of the uncertain joint model are identified based on simulated data. The maximum likelihood method is used for identification.

Original languageEnglish
Title of host publicationProceedings of ISMA 2018 - International Conference on Noise and Vibration Engineering and USD 2018 - International Conference on Uncertainty in Structural Dynamics
EditorsD. Moens, W. Desmet, B. Pluymers, W. Rottiers
PublisherKU Leuven - Departement Werktuigkunde
Pages5169-5180
Number of pages12
ISBN (Electronic)9789073802995
Publication statusPublished - 1 Jan 2018
Externally publishedYes
Event28th International Conference on Noise and Vibration Engineering, ISMA 2018 and 7th International Conference on Uncertainty in Structural Dynamics, USD 2018 - Leuven, Belgium
Duration: 17 Sep 201819 Sep 2018

Publication series

NameProceedings of ISMA 2018 - International Conference on Noise and Vibration Engineering and USD 2018 - International Conference on Uncertainty in Structural Dynamics

Conference

Conference28th International Conference on Noise and Vibration Engineering, ISMA 2018 and 7th International Conference on Uncertainty in Structural Dynamics, USD 2018
CountryBelgium
CityLeuven
Period17/09/1819/09/18

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