MATEC Web of Conferences, 2018 The theoretical analyses and practical experience show that only the damping effect adaptable to the current operating conditions makes it possible to achieve optimum performance of damping devices inserted in the supports of rotating machines.
Zapoměl Jaroslav +2 more
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Cavitation Effects on Squeeze-Film Damper Performance
A S L E Transactions, 1986 Experimental observations on unpressurized dynamically loaded hydrodynamic bearings and squeeze-film dampers indicate that cavitation bubbles, once formed, do not completely redissolve upon the reappearance of positive pressures. Instead, one is left with a spongy compressible fluid.
N. S. Feng, E. J. Hahn
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Influence of assembly conditions on the stressed-stained state of damper support elastic rings
Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2017 The article considers the influence of different tolerance values on the stiffness of elastic rings in squeeze film dampers. This type of damper is widely used in gas turbine engine supports.
D. S. Diligensky, D. K. Novikov
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Research on Dynamic Characteristic Coefficients of Integral Squeeze Film Damper
MachinesIntegral squeeze film damper (ISFD) is a new type of structure that appeared on the basis of traditional squeeze film damper (SFD). Since the oil film in ISFD is a segmented structure without annular flow, the nonlinearity of the oil film force has been ...
Wei Yan +5 more
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SQUEEZE FILM DAMPER EFFECT ON VIBRATION OF AN UNBALANCED FLEXIBLE ROTOR USING HARMONIC BALANCE METHOD [PDF]
Journal of Engineering Science and Technology, 2017 In this paper, an effective tool based on harmonic balance method to assess the forced response of these systems under parametric changes is developed.
FENG HE +3 more
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An Unsteady Long Bearing Squeeze Film Damper Model
, 2000 This paper, the first of a two-part series, presents results of an unsteady rotordynamic analysis of a long-bearing squeeze film damper executing circular centered orbits using a fluid circuit approach.
Schallhorn, P. A. +3 more
core
An Analytical Turbulence Model for Squeeze Film Damper Short-Bearing Analysis
Applied MechanicsThis paper develops an analytical turbulence model for open-ended squeeze film damper (SFD) application. Prandtl’s mixing length theory is adopted to describe the momentum transfer within the damper for its thin-film turbulent flow.
Tieshu Fan, Kamran Behdinan
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Selecting a squeeze film damper model for solving problems of gas turbine engine rotor dynamics
Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2017 Various standard mathematical squeeze film damper (SFD) models that can be applied for solving rotor dynamics problems of gas turbine engines (GTE) are presently available.
M. K. Leontiev, M. N. Kutakov
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Measurements of Pressure Distributions and Force Coefficients in a Squeeze Film Damper. Part 2: Partially Sealed Configuration [PDF]
, 1991 Experimental results from a partially sealed squeeze film damper (SFD) test rig, executing a circular centered orbit are presented and discussed. A serrated piston ring is installed at the damper exit.
Vance, J. M. +2 more
core
Determination of Damping Coefficient of a Bump Foil Squeeze Film Damper
, 2017 The present investigation is aiming to get better squeeze film dampers which are normally used in high speed jet engines to minimize small amplitude large force vibrations.
V. Arunkumar +4 more
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