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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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Analytical investigation of squeeze film dampers
, 2020 Mehmet Murat Altuğ Biҫak
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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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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
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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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Shock and Vibration, 2017 This study presents a numerical investigation using the finite element method on the vibratory behavior of a single spool gas turbine designed for unmanned aerial vehicle applications. The shaft of the rotor-bearing system is supported on a front bearing
Geraldo Creci +4 more
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International Journal of Rotating Machinery, 1997 Electrorheological (ER) fluids, discovered in 1947 by W. WINSLOW, are concentrated suspensions of solid particles in an oily base liquid. Exposed to a strong electric field, their resistance to flow increases very greatly and this change is progressive ...
Benjamin Pecheux +2 more
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The Control of Engine Vibration Using Squeeze-Film Dampers [PDF]
Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; Process Industries; Technology Resources; General, 1982 This paper describes the following roles of a squeeze-film damper when used in gas turbine applications as a means of reducing vibration and transmitted force due to unbalance. (a) as an element in parallel with a soft spring in a vibration isolator and (b) as an element in series with the stiffness of the engine pedestal.
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MATEC Web of Conferences, 2018 Technological solution, frequently used to suppress vibrations in rotating machines, consists in adding damping devices between the rotor and its frame.
Ferfecki Petr +4 more
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