Journal
JOURNAL OF SOUND AND VIBRATION
Volume 272, Issue 3-5, Pages 557-580Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/S0022-460X(03)00384-5
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An analytical model to predict non-linear dynamic responses in a rotor bearing system due to surface waviness has been developed. In the analytical formulation the contacts between the rolling elements and the races are considered as non-linear springs, whose stiffness are obtained by using Hertzian elastic contact deformation theory. The governing differential equations of motion are obtained by using Lagrange's equations. The implicit type numerical integration technique Newmark-beta with Newton-Raphson method is used to solve the non-linear differential equations iteratively. A computer program is developed to simulate surface waviness of the components. Results presented in the form of fast Fourier transformation with agreement of various author's experimental researches. (C) 2003 Elsevier Ltd. All rights reserved.
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