A Brief Discussion Regarding Types of Cavitation in Squeeze Film Dampers and Cavitation Effects
Journal Title: INCAS BULLETIN - Year 2017, Vol 9, Issue 1
Abstract
Squeeze film dampers (SFD) are probably the most used shaft control devices in aircraft jet engines; SFDs consist in oil films, elastic elements and various antirotational devices that tune the stiffness and damping of the shafts’ supports and consequently adjust the lateral dynamics of the shaft. Fluid layers in SFDs are usually thin, hence the modeling can often be done using the Reynolds’ theory,; however, some of the main features of the film, namely the behavior of the fluid in the divergent, negative squeeze area, where discontinuities may appear in the liquid, are still subject to intense research. This paper will discuss some aspects regarding the types of cavitation that appear in squeeze film dampers and some of the effects of cavitation on the SFDs.
Authors and Affiliations
Laurentiu MORARU
Keywords
Related Articles
- EP ID EP293074
- DOI 10.13111/2066-8201.2017.9.1.7
- Views 78
- Downloads 0
Analysis of modern military jet trainer aircraft
New technical solutions and the application of modern technologies have led to combat aircraft configurations with a significant improvement in reliability, flight performance and operational performance through the crea...
Small Vertical Axis Wind Turbines: aerodynamics and starting behavior
In urban areas the wind is very turbulent and unstable with fast changes in direction and velocity. In these environments, the use of small vertical axis wind turbines (VAWT) becomes increasingly attractive due to severa...
INCAS 2.5D mid-scale model
In the design of the wing airfoils for transport aircraft, it is necessary to meet different requirements for distinct phases of flight, namely the cruise flight on one side and the take-off and landing on the other side...
Sammon mapping for preliminary analysis in Hyperspectral Imagery
The main goal of this paper is to present the implementation of the Sammon algorithm developed for finding N points in a lower m-dimensional subspace, where the original points are from a high n-dimensional space. This m...
Flight Performance of the Biological Lifting Surface
In the international research, biomimetic lifting surface are analyzed in various aspects: construction, aerodynamics and energy. The specificity of the flying wings determined similarity between the aeromechanical and t...