Dynamical modeling and experimental validation for squeeze film damper in bevel gears

Z Tian, Z Hu, J Tang, S Chen, X Kong, Z Wang… - … Systems and Signal …, 2023 - Elsevier
Squeeze film damper (SFD) effectively reduces rotor motion amplitude while crossing critical
speeds for vibration and noise reduction in a wide application of aero-engine rotor system …

Analytical and experimental investigation on stability of rotor system with spline coupling considering torque, friction coefficient and external dam**

Z Dai, J **g, C Chen, J Cong, Y Quan - Mechanism and Machine Theory, 2023 - Elsevier
The spline coupling is widely used in high-speed rotor systems. As the lack of good
understanding of the instability and influence behaviors, the spline induced instability is still …

Piezoelectric driven split pad squeeze film damper for the suppression of sudden unbalanced vibrations in rotor system

Y Zhang, G Bin, X Lu, Q Lu, H Fang, Y Pan - Journal of Sound and Vibration, 2024 - Elsevier
Blade loss leads to excessive unbalanced vibrations of the rotor system in the gas generator
of an aero-turboshaft engine. A squeeze film damper (SFD) cannot meet vibration control …

[HTML][HTML] Squeeze film damper modeling: A comprehensive approach

E Gheller, S Chatterton, A Vania, P Pennacchi - Machines, 2022 - mdpi.com
Squeeze film dampers (SFDs) are components used in many industrial applications, ranging
from turbochargers to jet engines. SFDs are applied when the vibration levels or some …

Two-phase lubrication characteristics of journal bearing in refrigerant-oil system under high-pressure environment considering gaseous cavitation

C Wang, H Zhong, B Lei, J Wu - International Journal of Refrigeration, 2024 - Elsevier
The journal-bearing system is crucial for the reliability of refrigerant compressors that
operate under high-ambient-pressure environments. The pressure changes rapidly, which …

Rotordynamic force coefficients of bubbly mixture annular pressure seals

LS Andrés - 2012 - asmedigitalcollection.asme.org
As oil fields deplete, in particular in deep sea reservoirs, pump and compression systems
work under more strenuous conditions with gas in liquid and liquid in gas mixtures, mostly …

Compressible fluid model for hydrodynamic lubrication cavitation

G Bayada, L Chupin - Journal of tribology, 2013 - asmedigitalcollection.asme.org
In this paper, it is shown how vaporous cavitation in lubricant films can be modeled in a
physically justified manner through the constitutive (compressibility) relation of the fluid. The …

Experimental and theoretical investigation on rotodynamic characterization of porous tilting pad bearings with hermetic squeeze film dampers

J Wang, S Han, H Zhang, H Li, P Wang… - Mechanical Systems and …, 2024 - Elsevier
To improve the performance and expand the application range of gas-lubricated bearings to
mainstream high-power devices, load capacity and dam** characteristics are the key …

Flow visualization and forces from a squeeze film damper operating with natural air entrainment

LS Andre´ s, SE Diaz - J. Trib., 2003 - asmedigitalcollection.asme.org
Measurements of dynamic film pressures and high-speed photographs of the flow field in an
open-ended Squeeze Film Damper (SFD) operating with natural free air entrainment are …

Identification of force coefficients in a squeeze film damper with a mechanical end seal—centered circular orbit tests

L San Andrés, A Delgado - 2007 - asmedigitalcollection.asme.org
The dam** capability of squeeze film dampers (SFDs) relies on adequate end sealing to
prevent air ingestion and entrapment. The paper presents the parameter identification …