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.
|Translated title of the contribution||Experimental evaluation of numerical continuation and bifurcation methods applied to autogyro rotor blade aeromechanical stability|
|Title of host publication||7th International Conference on Multibody Systems, Nonlinear Dynamics and Control (IDETC), San Diego, CA, USA|
|Publisher||American Society of Mechanical Engineers (ASME)|
|Pages||379 - 387|
|Publication status||Published - Sep 2009|
Bibliographical noteConference Proceedings/Title of Journal: Proceedings of the ASME 2009 International Design Engineering Technical Conferences
Other identifier: DETC2009-87634