Experimental evaluation of numerical continuation and bifurcation methods applied to autogyro rotor blade aeromechanical stability

Mark Lowenberg*, Djamel Rezgui, Peter Bunniss

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

Abstract

This paper presents a systematic assessment of the use of continuation and bifurcation techniques, in investigating the nonlinear periodic behaviour of rotor blades in forward autorotation. Our aim is to illustrate the potential of these tools in revealing complex blade dynamics, when used in combination (not necessarily in real time) with physical testing. We show a simple procedure to promote understanding of an existing engineering instability problem when uncertainties in the numerical modelling are present. It is proposed that continuation and bifurcation methods can play a significant role in developing numerical/experimental techniques for studying blade dynamics for both autorotating and powered rotors, which can be applied even at the preliminary design phase.

Original languageEnglish
Title of host publicationProceedings of the ASME Design Engineering Technical Conference
Pages379-387
Number of pages9
Volume4
EditionPARTS A, B AND C
DOIs
Publication statusPublished - 1 Dec 2009
EventASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE2009 - San Diego, CA, United Kingdom
Duration: 30 Aug 20092 Sep 2009

Conference

ConferenceASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE2009
CountryUnited Kingdom
CitySan Diego, CA
Period30/08/092/09/09

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