| Yan Wei（闫伟）,He Lidong,Zhang Yufei,Zhang Yipeng,Jia Xingyun.[J].高技术通讯(英文),2021,27(1):1~9 |
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| Experimental study of suppressing the unbalanced response vibration of rotor system with a G-type integral squeeze film damper |
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| DOI：10.3772/j.issn.1006-6748.2021.01.001 |
| 中文关键词: |
| 英文关键词: G-type integral squeeze film damper (GISFD), unbalanced response, vibration suppression, rotor system, dynamic characteristic |
| 基金项目: |
| Author Name | Affiliation | | Yan Wei（闫伟） | (Beijing Key Laboratory of Health Monitoring and Self-Recovery for High-End Mechanical Equipment, Beijing University of Chemical Technology, Beijing 100029, P.R. China) | | He Lidong | (Beijing Key Laboratory of Health Monitoring and Self-Recovery for High-End Mechanical Equipment, Beijing University of Chemical Technology, Beijing 100029, P.R. China) | | Zhang Yufei | (Beijing Key Laboratory of Health Monitoring and Self-Recovery for High-End Mechanical Equipment, Beijing University of Chemical Technology, Beijing 100029, P.R. China) | | Zhang Yipeng | (Beijing Key Laboratory of Health Monitoring and Self-Recovery for High-End Mechanical Equipment, Beijing University of Chemical Technology, Beijing 100029, P.R. China) | | Jia Xingyun | (Beijing Key Laboratory of Health Monitoring and Self-Recovery for High-End Mechanical Equipment, Beijing University of Chemical Technology, Beijing 100029, P.R. China) |
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| 中文摘要: |
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| 英文摘要: |
| Conventional squeeze film dampers have numerous challenges including lock up, bistable re-sponse and incoordinate precession. In order to resolve these nonlinear problems, a novel G-type in-tegral squeeze film damper (GISFD) is proposed in this research. The experimental test rig is pro-vided to investigate the rotor system with an unbalanced single disk. Numerical simulation results show that the structural design of GISFD is reasonable, which can ensure its safe and stable opera-tion. The influence of different support stiffnesses on the first-order speed of the rotor system is ana-lyzed. Experimental results show that GISFD can effectively suppress the unbalanced response vibra-tion of the rotor. In a certain range, it is found that the suppression effect of GISFD increases with the increase in the kinematic viscosity of the damping fluid. When the silicone oil with kinematic viscosity coefficients v = 30. 0 cm2 / s is employed, the vibration reduction of GISFD is approximately 71. 51 %. Furthermore, the experimental results show that with the increase of the unbalance, there is a linear relationship between the unbalance and the corresponding amplitude of the unbalanced re-sponse. It is concluded that GISFD has excellent linear damping characteristics and reduces the sen-sitivity of the rotor system to the unbalanced mass. |
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