Engineering Mechanics

Proceedings Vol. 15 (2009)

ENGINEERING MECHANICS 2009

NATIONAL CONFERENCE WITH INTERNATIONAL PARTICIPATION
May 11 – 14, 2009, Svratka, Czech Republic

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Editors: Jiří Náprstek and Cyril Fischer

ISBN 978-80-86246-35-2 (printed, Extended Abstracts)
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)

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Alternative expression for stable and unstable limit cycles of aeroelastic pendulum

S. Pospíšil, J. Náprstek
pages 1049 - 1056, full text

The subject considered in this paper is the aero-elastic self-induced oscillation of a mechanical system with generalized single degree-of-freedom (SDOF). The motion is described by an ordinary differential equation of Dufﬁng type with special form of aero-elastic damping terms of Van der Pol type. A new semi-analytical approach is introduced in order to identify the limit cycles, both stable as well as unstable, which are not possible to be identiﬁed by means of an experiments nor by a numerical integration.

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Engineering Mechanics

International Conference

Proceedings Vol. 15 (2009)

ENGINEERING MECHANICS 2009