Results 91 to 100 of about 3,492 (237)

Steady-state unbalance response of a three-disk flexible rotor on flexible, damped supports [PDF]

open access: yes
Experimental data are presented for the unbalance response of a flexible, ball bearing supported rotor to speeds above the third lateral bending critical. Values of squeeze film damping coefficients obtained from measured data are compared to theoretical
Cunningham, R. E.
core   +1 more source

Variable force, eddy-current or magnetic damper [PDF]

open access: yes, 1985
An object of the invention is to provide variable damping for resonant vibrations which may occur at different rotational speeds in the range of rpms in which a rotating machine is operated.
Cunningham, R. E.
core   +1 more source

Comparison Between Damping Coefficients of Measured Perforated Micromechanical Test Structures and Compact Models

open access: yes, 2008
Measured damping coefficients of six different perforated micromechanical test structures are compared with damping coefficients given by published compact models.
De Pasquale, Giorgio   +2 more
core   +1 more source

Research on the Dynamic Characteristics of Cantilever Rotor System With ISFD

open access: yesShock and Vibration
Aiming at the common vibration problem of the cantilever rotor system and the nonlinear problem of traditional squeeze film damper (SFD), an integral squeeze film damper (ISFD) for the cantilever rotor system was proposed based on the traditional SFD. In
Wei Yan   +5 more
doaj   +1 more source

Finite element for rotor/stator interactive forces in general engine dynamic simulation. Part 1: Development of bearing damper element [PDF]

open access: yes
A general purpose squeeze-film damper interactive force element was developed, coded into a software package (module) and debugged. This software package was applied to nonliner dynamic analyses of some simple rotor systems.
Adams, M. L., Fertis, D. G., Padovan, J.
core   +1 more source

Dynamic Analysis of a Hybrid Squeeze Film Damper Mounted Rub-Impact Rotor-Stator System

open access: yesJournal of Applied Mathematics, 2012
An investigation is carried out on the systematic analysis of the dynamic behavior of the hybrid squeeze-film damper (HSFD) mounted a rotor-bearing system with strongly nonlinear oil-film force and nonlinear rub-impact force in the present study.
Cai-Wan Chang-Jian
doaj   +1 more source

Squeeze film damper supports for flexible rotors

open access: yes, 1979
Owing to its excellent vibration isolation capability, the squeeze film damper is finding increasing use in industry, particularly in the gas turbine industry. Design information for squeeze film damper supported flexible rotors has been scarce and has been restricted mainly to small journal orbit eccentricity, and consequently to small unbalance ...
openaire   +2 more sources

Control of rotordynamic instability in a typical gas turbine's power system [PDF]

open access: yes
The effect of rotor internal friction on the system's stability was studied when operated above the first critical speed. This internal friction is commonly caused by sliding press fits or sliding splines.
Page, R. H.   +2 more
core   +1 more source

Bandwidth Optimization of MEMS Accelerometers in Fluid Medium Environment. [PDF]

open access: yesSensors (Basel), 2022
Xu X   +7 more
europepmc   +1 more source

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