Petrov, E P (2012) Analysis of flutter-induced limit cycle oscillations in gas-turbine structures with friction, gap, and other nonlinear contact interfaces. Journal of Turbomachinery, 134 (6). 061018/1-061018/13. ISSN 0889-504X

PDF Restricted to SRO admin only Download (3MB)

Abstract

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

Item Type:	Article
Schools and Departments:	School of Engineering and Informatics > Engineering and Design
Subjects:	T Technology > TJ Mechanical engineering and machinery
Depositing User:	Yevgen Petrov
Date Deposited:	28 Nov 2012 17:05
Last Modified:	02 Jul 2019 21:18
URI:	http://sro.sussex.ac.uk/id/eprint/43016

View download statistics for this item

📧 Request an update