Experimental model validation of a non-linear structure with lap-joint using the physical space approach

A. Delli Carri, D. Di Maio, I. A. Sever

Research output: Chapter in Book/Report/Conference proceedingConference proceeding

2 Citations (Scopus)

Abstract

It is commonly accepted that bolted structures can present nonlinearities which can be caused by the contact conditions and that these are severely exercised for large vibration amplitudes. Several researches have targeted these joint's nonlinear behaviours and experimental model validations have demonstrated to be successful. The scope of this paper is to demonstrate that nonlinearities which are quantified in the modal space can be correlated with the same ones which are identified in the physical space by using reverse path identification method. A dumbbell test rig was designed and manufactured so as to have a lap joint connecting the two weights placed at either ends of the bolted beam. The test structure will be modelled by both one degree of freedom lump parameter model and Finite Element model. The nonlinearities will be identified by the frequency and damping nonlinear functions in the modal space and then correlated with the equivalent laws identified by reverse path method in the physical space.

Original languageEnglish
Title of host publicationProceedings of ISMA 2014 - International Conference on Noise and Vibration Engineering and USD 2014 - International Conference on Uncertainty in Structural Dynamics
PublisherKU Leuven
Pages1185-1198
Number of pages14
ISBN (Electronic)9789073802919
Publication statusPublished - 1 Jan 2014
Externally publishedYes
Event26th International Conference on Noise and Vibration Engineering, ISMA 2014, Including the 5th International Conference on Uncertainty in Structural Dynamics, USD 2014 - Leuven, Belgium
Duration: 15 Sep 201417 Sep 2014

Conference

Conference26th International Conference on Noise and Vibration Engineering, ISMA 2014, Including the 5th International Conference on Uncertainty in Structural Dynamics, USD 2014
CountryBelgium
CityLeuven
Period15/09/1417/09/14

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Acoustics and Ultrasonics

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  • Cite this

    Delli Carri, A., Di Maio, D., & Sever, I. A. (2014). Experimental model validation of a non-linear structure with lap-joint using the physical space approach. In Proceedings of ISMA 2014 - International Conference on Noise and Vibration Engineering and USD 2014 - International Conference on Uncertainty in Structural Dynamics (pp. 1185-1198). KU Leuven.