Numerical Investigation of Jointed Oscillators using Harmonic Balance Techniques

Süß D, Jerschl M, Willner K, Jerschl M (2014)

Publication Type: Conference contribution

Publication year: 2014

Publisher: KU Leuven

Edited Volumes: Proceedings of ISMA 2014 - International Conference on Noise and Vibration Engineering and USD 2014 - International Conference on Uncertainty in Structural Dynamics

Book Volume: -

Pages Range: 3233-3237

Conference Proceedings Title: Proceedings of the International Conference on Noise and Vibration Engineering ISMA

Event location: Leuven, Belgium BE

ISBN: 9789073802919

Abstract

Joints play an important role in most mechanical applications and the prediction of the dynamical behavior of jointed structures is a challenging task in structural dynamics. Their inclusion leads to, for example, shifts of the resonance frequencies or of the maximal response amplitude within a resonance due to damping effects. In this paper, the focus is on investigating the behavior of a jointed structure over a broad range of excitation frequencies within the frequency domain corresponding to the stationary behavior in the time domain. Due to the nonlinear forces, it is not possible to directly perform an analytical transformation of the system equations into the frequency domain, so the Harmonic Balance Method (HBM) is applied here. In the framework of the HBM it is assumed that a harmonic excitation of the system leads to a harmonic response. The calculation procedure is applied to a friction oscillator containing a bolted lap joint, which is modeled via different Finite Element models with a corresponding three dimensional contact law. The calculation results are compared to each other.

Authors with CRIS profile

Dominik Süß Lehrstuhl für Technische Mechanik (LTM) Martin Jerschl Professur für Strukturmechanik Kai Willner Professur für Strukturmechanik

How to cite

APA:

Süß, D., Jerschl, M., Willner, K., & Jerschl, M. (2014). Numerical Investigation of Jointed Oscillators using Harmonic Balance Techniques. In Proceedings of the International Conference on Noise and Vibration Engineering ISMA (pp. 3233-3237). Leuven, Belgium, BE: KU Leuven.

MLA:

Süß, Dominik, et al. "Numerical Investigation of Jointed Oscillators using Harmonic Balance Techniques." Proceedings of the International Conference on Noise and Vibration Engineering ISMA 2014, Leuven, Belgium KU Leuven, 2014. 3233-3237.

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