Hysteresis in transverse galloping: the role of the inflection points

Barrero Gil, Antonio and Sanz Andres, Angel Pedro and Alonso Rodrigo, Gustavo (2009). Hysteresis in transverse galloping: the role of the inflection points. "Journal of Fluids and Structures", v. 25 (n. 6); pp. 1007-1020. ISSN 0889-9740. https://doi.org/10.1016/j.jfluidstructs.2009.04.008.

Description

Title: Hysteresis in transverse galloping: the role of the inflection points
Author/s:
  • Barrero Gil, Antonio
  • Sanz Andres, Angel Pedro
  • Alonso Rodrigo, Gustavo
Item Type: Article
Título de Revista/Publicación: Journal of Fluids and Structures
Date: August 2009
ISSN: 0889-9740
Volume: 25
Subjects:
Faculty: Instituto de Microgravedad Ignacio Da Riva (UPM)
Department: Vehículos Aeroespaciales [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Transverse galloping is here considered as a one-degree-of-freedom oscillator subjected to aerodynamic forces, which are described by using the quasi-steady hypothesis. The hysteresis of transverse galloping is also analyzed. Approximate solutions of the model are obtained by assuming that the aerodynamic and damping forces are much smaller than the inertial and stiffness ones. The analysis of the approximate solution, which is obtained by means of the method of Krylov–Bogoliubov, reveals the existing link between the hysteresis phenomenon and the number of inflection points at the aerodynamic force coefficient curve, Cy(α)Cy(α); CyCy and αα being, respectively, the force coefficient normal to the incident flow and the angle of attack. The influence of the position of these inflection points on the range of flow velocities in which hysteresis takes place is also analyzed.

More information

Item ID: 39646
DC Identifier: http://oa.upm.es/39646/
OAI Identifier: oai:oa.upm.es:39646
DOI: 10.1016/j.jfluidstructs.2009.04.008
Official URL: http://www.sciencedirect.com/science/article/pii/S0889974609000528
Deposited by: Biblioteca ETSI Aeronauticos
Deposited on: 10 Mar 2016 11:34
Last Modified: 10 Mar 2016 11:34
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