A study on the effect of non-dimensional system parameters on squeeze film damper performance using experimental data

Kumar, Varun and Prabhu, BS and Paranjpe, PA (1987) A study on the effect of non-dimensional system parameters on squeeze film damper performance using experimental data. In: 8th, Cincinnati, International Symposium on Air Breathing Engines, 14-19 June 1987, OH, United States.

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Abstract

An attempt is made to formulate guidelines for the design of airbreathing engines' squeeze film dampers, with emphasis on dimensionless shaft amplitude and transmitted force in the bearing-damper plane. Seven important nondimensional sets of variables, taken to be invariants, have been established with respect to various significant squeeze damper parameters. Attention is given to the effects of different nondimensional system parameters on two important nondimensional response parameters. The nondimensional analysis indicates that good vibration attenuation can be obtained for larger values of a newly postulated nondimensional number defined in terms of external oil supply pressure, oil viscosity, and operating speed. (O.C.)

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Gas turbine engines;Mathematical models;Vibration damping;Structural vibration;Power effenciency;Squeeze films;Reynolds number
Subjects: AERONAUTICS > Aeronautics (General)
Division/Department: Electrical Section, CSIR Centre for Mathematical Modelling and Computer Simulation, Propulsion Division
Depositing User: M/S ICAST NAL
Date Deposited: 13 Oct 2006
Last Modified: 24 May 2010 09:51
URI: http://nal-ir.nal.res.in/id/eprint/2957

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