A nonlinear state-dependent model for vibrations excited by roughness in rolling contacts

O.E. Lundberg, S. Finnveden, S. Björklund, Mikael Pärssinen, I. Lopez Arteaga

Research output: Contribution to journalArticleAcademicpeer-review

9 Citations (Scopus)

Abstract

A state-dependent method to model contact nonlinearities in rolling contacts is proposed. By pre-calculation of contact stiffness and contact filters as functions of vertical relative displacement, a computationally efficient modelling approach based on a moving point force description is developed. Simulations using the state-dependent model have been analysed by comparison with measurements. Results from the investigated case – consisting of a steel ball rolling over a steel beam having two different degrees of roughness – show good agreement between nonlinear simulations and measured beam vibrations. The promising results obtained with the proposed method are potentially applicable to wheel–rail interaction and rolling element bearings.
Original languageEnglish
Pages (from-to)197-213
JournalJournal of Sound and Vibration
Volume345
DOIs
Publication statusPublished - 2015
Externally publishedYes

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