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RESEARCH PAPERS: Gas Turbines: Structures and Dynamics

Optimal Design of Split Ring Dampers for Gas Turbine Engines

[+] Author and Article Information
M. A. Niemotka

Pratt & Whitney Aircraft Engines, West Palm Beach, FL 33417

J. C. Ziegert

Department of Mechanical Engineering, University of Florida, Gainesville, FL 32611

J. Eng. Gas Turbines Power 117(3), 569-575 (Jul 01, 1995) (7 pages) doi:10.1115/1.2814133 History: Received March 01, 1993; Online November 19, 2007

Abstract

Vibration analysis techniques used for labyrinth air seals are presented, along with a derivation of the methods used to calculate the dissipation capability of split ring dampers. After defining the problem in classical optimization format, the methods used to automate the process are presented, along with the results for a particular test case. For the case considered, the optimal designs were found to lie at or near the design space boundaries.

Copyright © 1995 by The American Society of Mechanical Engineers
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