Analysis of short squeeze film dampers with a central groove Conference Paper

abstract

• A novel analysis for the dynamic force response of a squeeze film damper with a central feeding groove considers the dynamic flow interaction between the squeeze film lands and the feeding groove. For small amplitude centered motions and based on the short bearing model, corrected values of the damping and inertia force coefficients are determined. Correlations with existing experimental evidence is excellent. Analytical results show that the grooved-damper behaves at low frequencies as a single land damper. Dynamic force coefficients are determined to be frequency dependent. Analytical predictions show that the combined action of fluid inertia and groove volume - liquid compressibility affects the force coefficients for dynamic excitation at large frequencies.

authors

• San Andres, Luis

published proceedings

• American Society of Mechanical Engineers (Paper)

author list (cited authors)

• San Andres, L. A.

complete list of authors

• San Andres, LA

publication date

• December 1991

published in

• American Society of Mechanical Engineers (Paper)  Journal

start page

• 1

end page

• 6