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Design of elastomer dampers for a high-speed flexible rotorThis paper describes the methods used to design elastomerically damped supports for high-speed, flexible rotor-bearing systems. The procedure consists of using a damped natural frequency analysis to identify stiffness and damping requirements for the supports over the speed range. Optimum values for these coefficients are found and unbalance response analysis is used to calculate expected rotor behavior. Equations for calculating the shear and compressive stiffness and damping of button-type elastomer mounts are given, as is a procedure for their application to the design of the elastomeric mounts. These techniques were successfully applied to the design of damped elastomeric supports for a high-speed rotor, which traverses two bending critical speeds. Results of the testing showed that the rotor was well behaved and showed linear response to unbalance. Measured modal damping exceeded expectations and tests were conducted with both high- and low-loss elastomers, enabling the exploration of the practical range of elastomer damping capability.
Document ID
19800031566
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Tecza, J. A.
(Mechanical Technology, Inc. Latham, NY, United States)
Smalley, A. J.
(Mechanical Technology, Inc. Latham, N.Y., United States)
Darlow, M. S.
(Mechanical Technology, Inc. Latham, NY, United States)
Cunningham, R. E.
(NASA Lewis Research Center Cleveland, Ohio, United States)
Date Acquired
August 10, 2013
Publication Date
September 1, 1979
Subject Category
Mechanical Engineering
Report/Patent Number
ASME PAPER 79-DET-88
Accession Number
80A15736
Distribution Limits
Public
Copyright
Other

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