Results 91 to 100 of about 1,463,429 (213)

Numerical Investigation on Periodically Time-Varying Dynamic Characteristics of Static Eccentric Squeeze Film Damper

open access: yesJournal of Applied Fluid Mechanics, 2021
To study the periodically time-varying dynamic characteristics of static eccentric squeeze film damper (SFD), two models of computational fluid dynamics were established by dynamic mesh method of transient flow field.
Z. Hai-lun, C. Xi, Z. Ming
doaj  

The influence of asymmetry in centralizing spring of squeeze film damper on stability and bifurcation of rigid rotor response

open access: yesAlexandria Engineering Journal, 2016
One of the main challenges in the design of rotating machinery is the occurrence of undesirable vibration. In this paper, stability and bifurcation of the unbalance response of a rigid rotor supported by squeeze film damper with asymmetry in centralizing
Hamidreza Heidari, Mohammadreza Ashkooh
doaj   +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

Study of the Squeeze Film Damper of Larger Flow Rate High-Speed On/Off Valve

open access: yes, 2011
A new type of squeeze film damper (SFD) is designed to reduce spool’s impact and vibration which happen in the two-stage larger flow rate high-speed on/off valve with the 450 L/min flow rate and 8ms turn-off time, the valve’s sealing performance ...
Tao Wang   +3 more
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

A Dynamic Analysis of a Dual Clearance Squeeze Film Damper

open access: yes, 2010
Squeeze film dampers (SFD) are devices utilized to control the shafts of high-speed rotating machinery. A dual squeeze film damper (DSFD) consists of two squeeze film bearings that are separated by a sleeve, which is released when the rotor experiences ...
L. Moraru   +5 more
core   +1 more source

Influence of width of squeeze film damper on the transient response of rotor systems

open access: yesAIP Advances
The squeeze film damper (SFD) is a damping device that has been widely used in rotating machines. The SFD can effectively suppress rotor vibration and reduce transmitted forces.
Zhongyu Yang   +3 more
doaj   +1 more source

Development of a squeeze film damper test rig – comparison of measurement and simulation results

open access: yes
At the University of Kassel, a test rig for squeeze film dampers was developed to enable realistic experiments with controlled orbital motion. Using this setup, measured data were obtained and subsequently used to validate FEM-based simulation software ...
Markus Golek, Jakob Gleichner
core   +1 more source

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