Petrov, Yevgen (2016) Analysis of bifurcations in multiharmonic analysis of nonlinear forced vibrations of gas-turbine engine structures with friction and gaps. Journal of Engineering for Gas Turbines and Power, 138 (10). p. 102502. ISSN 0742-4795

PDF (ASME ©) - Published Version Download (1MB)

Abstract

An efficient frequency-domain method has been developed to analyse the forced response of large-scale nonlinear gas-turbine structures with bifurcations. The method allows: detection and localization of the design and operating conditions sets where bifurcations occur; calculation of tangents to the solution trajectory and continuation of solutions under parameter variation for structures with bifurcations.
The method is aimed at calculation of steady-state periodic solution and multiharmonic representation of the variation of displacements in time is used. The possibility of bifurcations in realistic gas-turbine structures with friction contacts and with cubic nonlinearity has been shown.

Item Type:	Article
Keywords:	bifurcation, nonlinear vibration, friction contacts, dynamics
Schools and Departments:	School of Engineering and Informatics > Engineering and Design
Subjects:	T Technology > TJ Mechanical engineering and machinery > TJ0170 Mechanics applied to machinery. Dynamics
Depositing User:	Yevgen Petrov
Date Deposited:	16 May 2016 09:48
Last Modified:	26 Apr 2023 14:36
URI:	http://sro.sussex.ac.uk/id/eprint/61013

View download statistics for this item

📧 Request an update