No CrossRef data available.
Article contents
A simple and compact model of defects and non-linear dynamic stiffness of a ball bearing
Published online by Cambridge University Press: 24 February 2010
Abstract
This paper presents a modelling study of a ball bearing dynamic behaviour with different defects types, which is part of an investigation related to the modelling of machinery rotating components. Our contribution in this work is a proposition of a five-degree of freedom model describing the nonlinear dynamic behaviour of a ball bearing. The aim is a parametric formulation of the ball bearing stiffness which allows the introduction of the defects characteristics. This approach is a result of an intrinsic structural behaviour making it different from methods which introduce external impulsion to simulate defects. Hence, a more realistic dynamic ball bearing defect simulation is obtained for better use in design and maintenance domain. This simulation can be formulated by two methods. The first, partial contact method, is based on elimination of some ball stiffness. The second one imposes displacement in the system response. Obtained results give response forms similar to standards and to different author’s results (theoretical and experimental) found in the literature. The developed model is simple, compact as compared to existing ones and we can express our satisfaction about this promising model.
Keywords
- Type
- Research Article
- Information
- Copyright
- © AFM, EDP Sciences 2009