Experimental and numerical modal analysis of dry friction-induced contact damping in assembled structures

B. Magyar, G. Csernak, R. Zana, R. Wohlfart, G. Stépán

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

Abstract

Finite element (FE) modal analysis of monolithic structures with negligible damping belongs to routine tasks even in the industry. However, in case of assemblies, there is no off-the-shelf solution due to the stiffness uncertainties and the unavoidable increase in damping due to contacts. A relevant part of structural damping originates in dry friction between the conforming surfaces of the assembled machine parts, and the modelling of this mechanism is extremely challenging. Our goal is the quantification of dry friction-induced modal damping by experiments in order to enhance the quality of existing contact models in FE algorithms. First, a new theoretical model was set up for the prediction of the friction-induced additional damping of each mode shape based on the FE analysis of a monolithic assembly. Second, the fundamentals of a new practical method were established that can be used for the designed increase of damping in certain structures.

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
Pages1863-1871
Number of pages9
ISBN (Electronic)9789073802995
Publication statusPublished - Jan 1 2013
Event28th International Conference on Noise and Vibration Engineering, ISMA 2018 and 7th International Conference on Uncertainty in Structural Dynamics, USD 2018 - Leuven, Belgium
Duration: Sep 17 2018Sep 19 2018

Other

Other28th International Conference on Noise and Vibration Engineering, ISMA 2018 and 7th International Conference on Uncertainty in Structural Dynamics, USD 2018
CountryBelgium
CityLeuven
Period9/17/189/19/18

Fingerprint

dry friction
Modal analysis
Damping
damping
Friction
Machine components
modal response
shelves
assemblies
stiffness
friction
assembly
industries
Stiffness
Finite element method
predictions
Industry

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Acoustics and Ultrasonics

Cite this

Magyar, B., Csernak, G., Zana, R., Wohlfart, R., & Stépán, G. (2013). Experimental and numerical modal analysis of dry friction-induced contact damping in assembled structures. In D. Moens, W. Desmet, B. Pluymers, & W. Rottiers (Eds.), Proceedings of ISMA 2018 - International Conference on Noise and Vibration Engineering and USD 2018 - International Conference on Uncertainty in Structural Dynamics (pp. 1863-1871). KU Leuven - Departement Werktuigkunde.

Experimental and numerical modal analysis of dry friction-induced contact damping in assembled structures. / Magyar, B.; Csernak, G.; Zana, R.; Wohlfart, R.; Stépán, G.

Proceedings of ISMA 2018 - International Conference on Noise and Vibration Engineering and USD 2018 - International Conference on Uncertainty in Structural Dynamics. ed. / D. Moens; W. Desmet; B. Pluymers; W. Rottiers. KU Leuven - Departement Werktuigkunde, 2013. p. 1863-1871.

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

Magyar, B, Csernak, G, Zana, R, Wohlfart, R & Stépán, G 2013, Experimental and numerical modal analysis of dry friction-induced contact damping in assembled structures. in D Moens, W Desmet, B Pluymers & W Rottiers (eds), Proceedings of ISMA 2018 - International Conference on Noise and Vibration Engineering and USD 2018 - International Conference on Uncertainty in Structural Dynamics. KU Leuven - Departement Werktuigkunde, pp. 1863-1871, 28th International Conference on Noise and Vibration Engineering, ISMA 2018 and 7th International Conference on Uncertainty in Structural Dynamics, USD 2018, Leuven, Belgium, 9/17/18.
Magyar B, Csernak G, Zana R, Wohlfart R, Stépán G. Experimental and numerical modal analysis of dry friction-induced contact damping in assembled structures. In Moens D, Desmet W, Pluymers B, Rottiers W, editors, Proceedings of ISMA 2018 - International Conference on Noise and Vibration Engineering and USD 2018 - International Conference on Uncertainty in Structural Dynamics. KU Leuven - Departement Werktuigkunde. 2013. p. 1863-1871
Magyar, B. ; Csernak, G. ; Zana, R. ; Wohlfart, R. ; Stépán, G. / Experimental and numerical modal analysis of dry friction-induced contact damping in assembled structures. Proceedings of ISMA 2018 - International Conference on Noise and Vibration Engineering and USD 2018 - International Conference on Uncertainty in Structural Dynamics. editor / D. Moens ; W. Desmet ; B. Pluymers ; W. Rottiers. KU Leuven - Departement Werktuigkunde, 2013. pp. 1863-1871
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