Identification of nonlinear interface models

H. Ahmadian*, H. Jalali

*Corresponding author for this work

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

1 Citation (Scopus)

Abstract

A nonlinear model for joints interfaces is proposed capable of representing the dominant physics involved in a mechanical joint such as micro/macro slip. The joint interface is modelled using a combination of linear and cubic springs. The coefficient of nonlinear spring is assumed to be complex to simulate the softening as well as damping effects of the joint during slippage. An estimate of the response of the structure with the joint under external excitations is obtained using the method of multiple scales. The parameters of the model, i.e. the spring constants are functions of normal and tangential stresses at the joint interface and may be identified by minimizing the difference between the obtained qualitative nonlinear solution and the experimentally measured data.

Original languageEnglish
Title of host publicationProceedings of the 2004 International Conference on Noise and Vibration Engineering, ISMA
EditorsP. Sas, M. Munck
Pages1221-1227
Number of pages7
Publication statusPublished - 2004
Externally publishedYes
EventProceedings of the 2004 International Conference on Noise and Vibration Engineering, ISMA - Leuven, Belgium
Duration: 20 Sep 200422 Sep 2004

Publication series

NameProceedings of the 2004 International Conference on Noise and Vibration Engineering, ISMA

Conference

ConferenceProceedings of the 2004 International Conference on Noise and Vibration Engineering, ISMA
Country/TerritoryBelgium
CityLeuven
Period20/09/0422/09/04

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