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Dynamic Characteristics of Indeterminate Rotor Systems with Angular Contact Ball Bearings Subject to Axial and Radial Loads  

Hong, Seong-Wook (School of Mechanical Engineering, Kumoh National University of Technology)
Kang, Joong-Ok (Graduate School, Kumoh National University of Technology)
Yung C. Shin (School of Mechanical Engineering, Purdue University, West Lafayette. USA)
Publication Information
International Journal of Precision Engineering and Manufacturing / v.3, no.2, 2002 , pp. 61-71 More about this Journal
Abstract
This paper presents the dynamic analysis of indeterminate rotor systems with angular contact ball bearings subject to axial and radial loads. The reaction forces against applied radial loads significantly influence the dynamic characteristics of angular contact ball bearings. However, the reaction forces are hard to determine in the case of indeterminate rotor-bearing systems. To this end, this paper proposes a finite element model for indeterminate rotor systems with angular contact ball bearings. An improved bearing model is adopted which is originated from the Harris's bearing dynamic model. The bearing model is also extended to include centrifugal forces due to the ball and inner ring. This paper utilizes a new iterative algorithm for general, indeterminate rotor systems with angular contact ball bearings. This examples are provided to illustrate the dynamic characteristics of rotor systems with angular contact ball bearings subject to axial and radial loads. The experimental and numerical results prove that the proposed method is useful for the dynamic analysis of indeterminate rotor systems with angular contact ball bearings.
Keywords
Rotor-bearing system; Angular contact ball bearing (ACBB); Indeterminate system; Reaction forces; Finite element method (FEM); Radial load; Axial load;
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