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Analysis of flutter-induced limit cycle oscillations in gas-turbine structures with friction, gap, and other nonlinear contact interfaces

journal contribution
posted on 2023-06-08, 13:54 authored by Yevgen PetrovYevgen Petrov
A frequency-domain method has been developed to predict and comprehensively analyse the limit-cycle flutter-induced vibrations in bladed discs and other structures with nonlinear contact interfaces. The method allows direct calculation of the limit-cycle amplitudes and frequencies as functions of contact interface parameters using realistic large-scale finite element models of structures. The effects of the parameters of nonlinear contact interfaces on limit-cycle amplitudes and frequencies have been explored for major types of nonlinearities occurring in gas-turbine structures. New mechanisms of limiting the flutter-induced vibrations have been revealed and explained

History

Publication status

  • Published

Journal

Journal of Turbomachinery

ISSN

0889-504X

Publisher

American Society of Mechanical Engineers

Issue

6

Volume

134

Page range

061018/1-061018/13

Department affiliated with

  • Engineering and Design Publications

Full text available

  • No

Peer reviewed?

  • Yes

Legacy Posted Date

2012-11-28

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