The Dynamic Analysis of Two-Rotor Three-Bearing System
Joint Authors
Gao, Jinji
Yao, Jianfei
Zhang, Ya
Wang, Weimin
Source
International Journal of Rotating Machinery
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-07-06
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
A finite element model considering the shear effect and gyroscopic effect is developed to study the linear and nonlinear dynamic behavior of two-rotor three-bearing system named N+1 configuration with rub-impact in this paper.
The influence of rotational speed, eccentric condition, and the stiffness of coupling on the dynamic behavior of N+1 configuration and the propagation of motion are discussed in detail.
The linear rotordynamic analysis included an evaluation of rotor critical speed and unbalance response.
The results show that the critical speed and unbalance response of rotors are sensitive to coupling stiffness in N+1 configuration.
In the nonlinear analysis, bifurcation diagram, shaft-center trajectory, amplitude spectrum, and Poincaré map are used to analyze the dynamic behavior of the system.
The results of the research transpire that these parameters have the great effects on the dynamic behavior of the system.
The response of the system with rub-impact shows abundant nonlinear phenomena.
The system will exhibit synchronous periodic motion, multiperiodic motion, quasiperiodic motion, and chaotic motion patterns under rotor-stator rub interaction conditions.
The dynamic response is more complicated for flexible coupling and two mass eccentricities than that of system with rigid coupling and one mass eccentricity.
American Psychological Association (APA)
Yao, Jianfei& Gao, Jinji& Zhang, Ya& Wang, Weimin. 2015. The Dynamic Analysis of Two-Rotor Three-Bearing System. International Journal of Rotating Machinery،Vol. 2015, no. 2015, pp.1-15.
https://search.emarefa.net/detail/BIM-1066922
Modern Language Association (MLA)
Yao, Jianfei…[et al.]. The Dynamic Analysis of Two-Rotor Three-Bearing System. International Journal of Rotating Machinery No. 2015 (2015), pp.1-15.
https://search.emarefa.net/detail/BIM-1066922
American Medical Association (AMA)
Yao, Jianfei& Gao, Jinji& Zhang, Ya& Wang, Weimin. The Dynamic Analysis of Two-Rotor Three-Bearing System. International Journal of Rotating Machinery. 2015. Vol. 2015, no. 2015, pp.1-15.
https://search.emarefa.net/detail/BIM-1066922
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1066922