Results 21 to 30 of about 249 (182)
Some Aspects Regarding the Modeling of Highly Pressurized Squeeze Film Dampers [PDF]
INCAS Bulletin, 2010 Squeeze film dampers (SFD) have been used for many years to control vibration in gasturbines and other high-speed rotating machinery. The overall objective of this paper is to present theanalysis and validation of a dynamic model of a highly pressurized ...
Laurenţiu MORARU
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Lubricants, 2023 Due to the coupling of the damper journal with the elastic ring and oil film, the elastic ring squeeze film damper (ERSFD) shows better dynamic performance in comparison with the traditional squeeze film damper (SFD). Therefore, a novel rigid–elastic–oil
Yan Li, Haisheng Yang, Sier Deng
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Nonlinear Identification of a Squeeze-Film Damper [PDF]
Journal of Tribology, 1988 In this paper the authors describe an experimental study to identify the damping laws associated with a squeeze-film vibration damper. This is achieved by using a nonlinear filtering algorithm to process displacement responses of the damper ring to synchronous excitation and thus to estimate the parameters in an nth-power velocity model.
R. Stanway +2 more
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Shock and Vibration, 2021 To analyze the problem of vibration and bifurcation in the rotor system of the aeroengine with the elastic ring squeeze film damper (ERSFD) and elastic supports, the theoretical equation of the dynamic rotor system is developed in this paper, based on ...
Guoying Pang +3 more
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Applied Sciences, 2019 In this paper, vibration control of an unbalanced single-side cantilevered rotor system using a novel integral squeeze film bearing damper in terms of stability, energy distribution, and vibration control is analyzed.
Yipeng Zhang +4 more
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A computational fluid dynamics investigation of the segmented integral squeeze film damper
MATEC Web of Conferences, 2019 Rotor vibration attenuation is achieved with damping devices which work on different, often mutually coupled, physical principles. Squeeze film dampers are damping devices that have been widely used in rotordynamic applications.
Ferfecki Petr +4 more
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Journal of Low Frequency Noise, Vibration and Active Control, 2021 In this study, the nonlinear dynamic analysis of the hybrid squeeze film damper mounted on a gear-rotor-bearing system is presented. The strong nonlinear oil film force, nonlinear rub-impact force between the rotor and stator, and the gear meshing force ...
Bo-Lin Jian +3 more
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Mathematical models of squeeze film dampers in rotor dynamics of gas turbine engines
Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2017 The paper focuses on the choice of mathematical models of squeeze film dampers and methods of their numerical implementations for gas turbine engine rotor dynamics problems.
M. N. Kutakov +2 more
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Coupling Vibration Analysis of Turbine Shared Support Rotor-Bearing System with Squeeze Film Dampers
International Journal of Aerospace Engineering, 2022 The turbine shared support structure is used widely in aeroengines, but theoretical and experimental research on a rotor-bearing system containing a shared turbine support structure is lacking.
Jiaqi Han +6 more
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AIP Advances, 2022 In rotors supported on a squeeze-film damper (SFD) with static eccentricity, subharmonic and quasi-periodic vibrations are generated by rotor unbalance. In this paper, subharmonic and quasi-periodic vibrations in a Jeffcott rotor supported on an SFD are ...
Kwangchol Ri +4 more
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