Results 11 to 20 of about 3,492 (237)
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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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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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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Calculation Algorithm for Squeeze Film Damper
Procedia Engineering, 2015 AbstractThis work discusses a number of issues related to the selection of the squeeze film damper type. Here has been performed the analysis of works dedicated to this issue and it has been shown that today there is a large variety of damper designs. Therefore, the method allowing reasonably select the type of dampers and their parameters is required.
Novikov, D.K., Diligensky, D.S.
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Design and application of squeeze film dampers for turbomachinery stabilization [PDF]
, 1975 The steady-state transient response of the squeeze film damper bearing was investigated. Both the steady-state and transient equations for the hydrodynamic bearing forces are derived; the steady-state equations were used to determine the damper ...
Allaire, P. E. +2 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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Jixie chuandong, 2021 The bearing in the main shaft system of the aero-engine is often used in combination with elastic support and squeeze film damper （SFD） to reduce vibration.
Yulei Xia +4 more
doaj
Nonlinear Transient Modeling and Design of Turbocharger Rotor/Semi-Floating Bush Bearing System
Lubricants, 2017 This work presents the bearing design and analysis of radial semi-floating bush oil lubricated bearings for a typical industrial turbocharger configuration.
Jianming Cao +3 more
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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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