Calculation of the damping coefficient of flexible rings with working fluid

Abstract

The paper presents the results of patent search on the subject of squeeze film dampers and a survey of scientific papers on the same subject. The existing classification of squeeze film dampers has been complemented. The analysis carried out shows an increase in the amount of studies associated with damping and, in particular, squeeze film dampers with elastic rings. The paper introduces a procedure of calculating the parameters of a squeeze film damper with elastic rings. Comparative analysis of the results of calculation based on the previously known analytical method and the results obtained in a mathematical experiment has been carried out. Numerical calculation is carried out in the FLUENT software environment. Comparative analysis is made for dynamic models of two path types. Data on a complex pathmodel formed by an elastic ring with metering grooves are presented. The motion prescribed in the model simulates the behavior of a rotor with predetermined disbalance. 

About the authors

D. S. Diligensky

Samara State Aerospace University

Author for correspondence.
Email: diligen@mail.ru

Postgraduate student

Russian Federation

D. K. Novikov

Samara State Aerospace University

Email: novikovdk_ssau@mail.ru

Doctor of Science (Engineering)

Professor of the Department of Aircraft Engine Design

Russian Federation

References

  1. Alam M., Spencer D., Charleston Sh., Talbert P., Jankowich E., Johnson M. Compact compliant centering support for squeeze film damper. Pat. US 2006/0083448 Al. Int. CL F16C 27/00; US CL 384/99. Honeywell International, Inc., Morristown, NJ. № 10/967.979. Publ. 20.4.2006.
  2. Eskin I.D., Belousov A.I., Novikov D.K., Vil'ner P.D., Emel'yanov M.A., Snigirev V.N. Gidrodinamicheskiy dempfer [Squeeze film damper]. Patent RF no. 860566, 2001. (Publ. 20.03.2001)
  3. Belousov A.I., Balyakin V.B., Novikov D.K. Teoriya i proektirovanie gidrodina-micheskikh dempferov opor rotorov [Theory and design of rotor support squeeze film dampers]. Samara: Samarskiy nauchnyy tsentr RAN Publ., 2002. 335 с.

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