La Houille Blanche
Number 3-4, Juin 1998
|Page(s)||99 - 104|
|Published online||01 August 2009|
Comportement dynamique linéaire et non linéaire des paliers et des joints
Linear and non linear dynamic behaviour of bearings and seals
Laboratoire de Mécanique des Solides, UMR 6010 CNRS, Université de Poitiers
High speed rotors set a lot of stability problems especially when the speed of rotation is going throuhg a critical speed. The dynamical behavior of the fluid bearings has, in that case, an important effect. This study presents several models of dynamical behavior og bearing taking into account the flexibility of the shaft. The squeeze film damper (SFD) behavior is also discribed. This element gives a lot of damping but its behavior is totally non linear.
An approash of active squeeze film damper is presented: a variable clearance SFD or a variable viscosity SFD (fed with electro-rheological fluid) is used to control a flexible shaft.
© Société Hydrotechnique de France, 1998
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.