A Dynamic Analysis of a Flexible Rotor in Ball Bearings with Nonlinear Stiffness Characteristics

Bibliographic Details
Title: A Dynamic Analysis of a Flexible Rotor in Ball Bearings with Nonlinear Stiffness Characteristics
Authors: Dong-Soo Lee, Dong-Hoon Choi
Source: International Journal of Rotating Machinery, Vol 3, Iss 2, Pp 73-80 (1997)
Publisher Information: Wiley, 1997.
Publication Year: 1997
Collection: LCC:Engineering (General). Civil engineering (General)
Subject Terms: Rotor-bearing system, ball bearing, nonlinear bearing stiffness, critical speed, unbalance response, whirl orbit., Engineering (General). Civil engineering (General), TA1-2040
More Details: This paper presents an effective analysis approach for a flexible rotor in ball bearings with nonlinear stiffness characteristics to obtain realistic dynamic behavior results. The ball bearing is modeled in five degrees of freedom and the nonlinear stiffness characteristics of the bearing are completely described as functions of combined loads and spin speed. For dynamic behavior analysis of the nonlinear rotor-bearing system, a transfer-matrix method is iteratively used until the bearing displacements and the shaft displacements at every bearing location converge to the same values. The results show that the nonlinear stiffness characteristics of ball bearings significantly influence system dynamic behaviors and the proposed analysis approach for the nonlinear rotor-bearing system is effective.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 1023-621X
1023621X
Relation: https://doaj.org/toc/1023-621X
DOI: 10.1155/S1023621X97000080
Access URL: https://doaj.org/article/371f6db266f64b01a1d1ccf1b0283621
Accession Number: edsdoj.371f6db266f64b01a1d1ccf1b0283621
Database: Directory of Open Access Journals
More Details
ISSN:1023621X
DOI:10.1155/S1023621X97000080
Published in:International Journal of Rotating Machinery
Language:English