Publications
Numerical noise generation in modelled bearing vibration signals
Sarabjeet Singh, Carl Q. Howard, Colin H. Hansen, Uwe Kopke (2014)
Proceedings of Internoise 2014, Melbourne, Victoria, Australia, 16-19 November, paper 180Abstract:
A two-dimensional (2-D) explicit dynamics finite element (FE) model of a rolling element bearing was solved using a commercial FE software package, LS-DYNA. It was found that the modelled bearing vibration signals contain a significant amount of numerical noise. This paper provides an explanation of the physical mechanism by which the numerical noise is generated. The noise frequencies were analytically estimated and filtered out to achieve comparatively clean vibration signals and rolling element-to-raceway contact forces.
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