CLC number: TK14
On-line Access: 2024-08-27
Received: 2023-10-17
Revision Accepted: 2024-05-08
Crosschecked: 2014-10-30
Cited: 0
Clicked: 6808
Wei Li, De-ren Sheng, Jian-hong Chen, Yong-qiang Che. Modeling a two-span rotor system based on the Hamilton principle and rotor dynamic behavior analysis[J]. Journal of Zhejiang University Science A, 2014, 15(11): 883-895.
@article{title="Modeling a two-span rotor system based on the Hamilton principle and rotor dynamic behavior analysis",
author="Wei Li, De-ren Sheng, Jian-hong Chen, Yong-qiang Che",
journal="Journal of Zhejiang University Science A",
volume="15",
number="11",
pages="883-895",
year="2014",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A1400100"
}
%0 Journal Article
%T Modeling a two-span rotor system based on the Hamilton principle and rotor dynamic behavior analysis
%A Wei Li
%A De-ren Sheng
%A Jian-hong Chen
%A Yong-qiang Che
%J Journal of Zhejiang University SCIENCE A
%V 15
%N 11
%P 883-895
%@ 1673-565X
%D 2014
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1400100
TY - JOUR
T1 - Modeling a two-span rotor system based on the Hamilton principle and rotor dynamic behavior analysis
A1 - Wei Li
A1 - De-ren Sheng
A1 - Jian-hong Chen
A1 - Yong-qiang Che
J0 - Journal of Zhejiang University Science A
VL - 15
IS - 11
SP - 883
EP - 895
%@ 1673-565X
Y1 - 2014
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A1400100
Abstract: A nonlinear dynamic model of a two-span rotor system is constructed based on the hamilton principle and the finite element method. The Musznyska model and the short bearing model are employed to describe the nonlinear seal force and oil-film force. The fourth-order Runge-Kutta method is used to calculate the numerical solutions. The bifurcation diagrams, time-history diagrams, phase trajectories, and Poincare maps are presented to analyze the dynamic behavior of the bearing center and the disk center in the horizontal direction. The numerical results indicate that the rotational speed, the nonlinear seal force, the oil-film force, and the stiffness of the coupling have a significant effect on the stability of the rotor system. The dynamic behavior of the two-span rotor system is more complicated when impacted by the nonlinear seal force and oil-film force.
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