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- Title
Optimization Design Analysis of the Eccentric Rotor System with SFD.
- Authors
CholUk, Ri; ZhunHyok, Zhang; ChungHyok, Chae; Qiang, Zhao; JuYong, Ri; CholHyok, Kim
- Abstract
Background: Squeeze Film Damper plays an important role in enhancing the dynamic stability of the rotor and damping rotor vibrations and transmitted forces when traversing critical speeds. Depending on how SFD is designed, SFD can reduce the vibration and transmission forces of the rotating system and it can have the opposite effect. In particular, depending on how the single eccentric rotor system with SFD is mathematically accurately modeled and optimize, the stability of the single eccentric rotor system with SFD is further increased. Purpose: The purpose of this study is to improve the stability of the single eccentric rotor system by optimizing the variables affecting the vibration characteristics of the single eccentric rotor system with SFD. Methods: By using Lagrange function, the dynamic model for the single eccentric rotor system with SFD was comprehensively and specifically mentioned, and the motion equation of centroid path of the single rotor system with SFD was formulated. Next, the optimization design of the single eccentric rotor system with SFD was carried out using a genetic algorithm and MATLAB program. Results: After optimizing the design of the single eccentric rotor system with SFD, the amplitude of the single eccentric rotor system with SFD was reduced by 15.2% compared to before the optimization, and the stability of the single eccentric rotor system was further improved. Conclusion: In this paper, we investigated the dynamic modeling method, the motion equation of centroid path and optimization design method of the single eccentric rotor system with SFD. This results will contribute the nonlinear dynamic behaviors of the single eccentric rotor system, and provide a theoretical basis for the analysis of the dynamic modeling, the optimization design, and the nonlinear dynamic characteristic analysis of the dual rotor system.
- Subjects
ECCENTRIC loads; CENTROID; ROTOR vibration; ECCENTRICS &; eccentricities; ROTATIONAL motion; ROTORS; EQUATIONS of motion
- Publication
Journal of Vibration Engineering & Technologies, 2022, Vol 10, Issue 2, p751
- ISSN
2523-3920
- Publication type
Article
- DOI
10.1007/s42417-021-00406-7