Impact hammer-based analysis of nonlinear effects in bolted lap joint

B. Titurus, J. Yuan, F. Scarpa, S. Patsias, S. Pattison

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

1 Citation (Scopus)
3 Downloads (Pure)

Abstract

This work presents an experimental investigation into the dynamic behavior of a bolted joint beam configuration. The impact hammer is chosen as an alternative to classical harmonic excitation methods. The structural responses are explored for a range of the joint tightening toques and various levels of impulse hammer excitations. A symmetric beam assembly made of two nominally identical steel beams is studied. Symmetric modes are found to be sensitive to the test parameters. For given torque, impact-based varying joint loading conditions are used to induce the nonlinear joint effects. A linear data processing strategy is used to observe the nonlinear behavior indirectly. The dynamic joint behavior is described in the form of the modal frequency-damping ratio performance maps represented by the two-parametric approximating quadratic response surface models. This model maps the joint conditions on the corresponding dynamic characteristics of interest and it will serve as a basis for the parametric linear joint model development.

Original languageEnglish
Title of host publicationProceedings of ISMA 2016 - International Conference on Noise and Vibration Engineering and USD2016 - International Conference on Uncertainty in Structural Dynamics
EditorsPaul Sas, David Moens, Axel van de Walle
Place of PublicationBelgium
Pages789-801
Number of pages13
ISBN (Electronic)9789073802940
Publication statusPublished - 21 Sep 2016
Event27th International Conference on Noise and Vibration Engineering, ISMA 2016 and International Conference on Uncertainty in Structural Dynamics, USD2016 - Leuven, Belgium
Duration: 19 Sep 201621 Sep 2016

Publication series

NameProceedings of ISMA 2016 - International Conference on Noise and Vibration Engineering and USD2016 - International Conference on Uncertainty in Structural Dynamics

Conference

Conference27th International Conference on Noise and Vibration Engineering, ISMA 2016 and International Conference on Uncertainty in Structural Dynamics, USD2016
Country/TerritoryBelgium
CityLeuven
Period19/09/1621/09/16

Keywords

  • nonlinear effects
  • bolted lap joint
  • bolted joints
  • hammers
  • structural dynamics
  • dampers

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