Dynamic stability of a hose-drogue-wing system for aerial refueling

García-Fogeda, Pablo and Arevalo Lozano, Felix (2015). Dynamic stability of a hose-drogue-wing system for aerial refueling. In: "International Forum on Aeroelasticity and Structural Dynamics (IFASD 2015)", 28 Jun - 2 Jul 2015, San Pertersburgo, Rusia. ISBN 9781510821828. pp. 423-436.

Description

Title: Dynamic stability of a hose-drogue-wing system for aerial refueling
Author/s:
  • García-Fogeda, Pablo
  • Arevalo Lozano, Felix
Item Type: Presentation at Congress or Conference (Article)
Event Title: International Forum on Aeroelasticity and Structural Dynamics (IFASD 2015)
Event Dates: 28 Jun - 2 Jul 2015
Event Location: San Pertersburgo, Rusia
Title of Book: Aeroelasticity and Structural Dynamics. International Forum. 2015
Date: 2015
ISBN: 9781510821828
Volume: 1
Subjects:
Faculty: E.T.S. de Ingeniería Aeronáutica y del Espacio (UPM)
Department: Aeronaves y Vehículos Espaciales
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

In this work the classical hose-drogue system has been modified by adding a small lifting surface at the end of the hose and just before the drogue. This small wing can help to stabilize the static position of the system as well as to improve the dynamic characteristic of the hose-drogue. The hose is assumed to behave like a cable with tension and no bending forces are considered at the present time. Assuming that the dynamic effects are small compared to the static effects, a linearized expression for the perturbed motion of the hose in the vertical plane and the incremental hose tension are obtained. The resulting equations are linear with variable coefficients that depend on the static equilibrium position and static tension of the hose. The wing at the end of the hose generates unsteady aerodynamic forces that depend on the vertical velocity of the hose at the end position and of the unsteady angle. These forces are taking into account by means of the simplified model of Theodorsen¿s theory. The assumption of exponential dependence with time of the dynamic variables is made, and the resulting equations are solved by means of a finite element method. The system is thus transformed to an eigenvalue problem to obtain the natural frequencies and damping coefficients. The influence on the dynamic characteristics of the different parameters of the system is presented.

More information

Item ID: 41774
DC Identifier: http://oa.upm.es/41774/
OAI Identifier: oai:oa.upm.es:41774
Official URL: http://www.proceedings.com/30090.html
Deposited by: Memoria Investigacion
Deposited on: 05 Oct 2016 10:37
Last Modified: 05 Oct 2016 10:37
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