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Analysis of Aeroelastic Instabilities for Systems with Random Parameters

  1. Michael Löhr*,
  2. Dieter Dinkler

Article first published online: 22 DEC 2004

DOI: 10.1002/pamm.200410280

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PAMM

PAMM

Volume 4, Issue 1, pages 598–599, December 2004

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How to Cite

Löhr, M. and Dinkler, D. (2004), Analysis of Aeroelastic Instabilities for Systems with Random Parameters. Proc. Appl. Math. Mech., 4: 598–599. doi: 10.1002/pamm.200410280

Author Information

  1. Institut für Statik, Technische Universität Braunschweig, Germany

*Phone: +49 531 391 3669, Fax: +49 531 391 8116

Publication History

  1. Issue published online: 22 DEC 2004
  2. Article first published online: 22 DEC 2004

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Abstract

This paper presents a method for the numerical investigation of aeroelastic systems considering random properties of aerodynamic forces. The numerical analysis of aeroelastic instabilities is based on an eigenvalue problem with random coefficients, thus enabling the analysis of the random characteristics of critical wind velocities, respectively. The aerodynamic coefficients are treated as normally distributed random variables. An expansion in terms of a polynomial chaos scheme is applied in order to describe the statistical properties of the critical wind velocities. Hence, the reliability of structures against aeroelastic vibration phenomena can be estimated. (© 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

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