Nonlinear Vibrations Of Vertical
Asymmetrically-supported Rotors Under Fluid
Confinement: Theoretical Results
Author(s)
M. Moreira, H. Pina and J. Antunes
Abstract
This paper is concerned about vertical rotors immersed in fluid annulus of mod-
erate confinement. Such rotors are subjected to the dynamical effects of the fluc-
tuating co-rotating flows.
For high enough spinning velocities, the fluid-elastic forces become significant,
and often lead to unstable dynamical regimes. These depend on the fluid gap
and density, on the rotor eccentricity and spinning velocity, as well as structural
properties.
We developed an improved linear model for rotors under moderate fluid con-
finement as well as an exact model for the corresponding nonlinear rotor dynamics.
Recently a symbolic-numerical formulation based on a spectral/Galerkin approach
was also developed by the authors. Numerical resul
Keywords
Related Book
Other papers in this volume
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