Results 11 to 20 of about 1,463,429 (213)
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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Effect of squeeze film damper geometry on damper performance. [PDF]
, 1992 The Squeeze film damper has proved a useful means of eliminating instabilities and reducing vibration in rotor-bearing systems. Analyses for this problem generally assume parallel land dampers. In this thesis, the pressure distribution, the fluid film forces, and the stiffness and damping coefficients of variable land geometry narrow, circular orbit ...
Wang, Yin He
openaire +3 more sources
An Experimental Study on Steel and Teflon Squeeze Film Dampers [PDF]
Shock and Vibration, 2006 In this paper, the vibration analysis on Teflon and steel squeeze film dampers has been carried out. At different frequency ranges, vibration amplitude and the resonance frequency are measured.
Asad A. Khalid +3 more
doaj +2 more sources
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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Evaluation of various fluid-film models for use in the analysis of squeeze film dampers with a central groove [PDF]
, 2002 Experimental vibration responses of squeeze film dampers (SFDs) are obtained with four different central groove depths, two types of lubricant and various unbalance levels.
Hill, M. +5 more
core +1 more source
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
doaj +1 more source
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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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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