FORCE COEFFICIENTS FOR OPEN-ENDED SQUEEZE-FILM DAMPERS EXECUTING SMALL-AMPLITUDE MOTIONS ABOUT AN OFF-CENTER EQUILIBRIUM POSITION.
Conference Paper
Overview
Overview
abstract
Fluid-film forces generated by squeeze-film dampers (SFD) in response to small-amplitude motions about an off-center equilibrium configuration are of considerable importance for stability analyses of rotating machinery employing SFDs with weak or no centering springs. This approach is the basis for calculation of linearized force coefficients obtained by subjecting the journal to small perturbations in velocity and acceleration. The analysis considers the fluid flow in an open-ended SFD due to small-amplitude motions of the journal center about the static equilibrium configuration.
