Nonlinear Time-Domain Structure/Aerodynamics Coupling in Systems with Concentrated Structural Nonlinearities

Arevalo Lozano, Felix and Garcia-Fogeda Nuñez, Pablo and Climent, Hector (2010). Nonlinear Time-Domain Structure/Aerodynamics Coupling in Systems with Concentrated Structural Nonlinearities. In: "27th International congress of the aeronautical sciences", 19/09/2010 - 24/09/2010, Niza, Francia.

Description

Title: Nonlinear Time-Domain Structure/Aerodynamics Coupling in Systems with Concentrated Structural Nonlinearities
Author/s:
  • Arevalo Lozano, Felix
  • Garcia-Fogeda Nuñez, Pablo
  • Climent, Hector
Item Type: Presentation at Congress or Conference (Article)
Event Title: 27th International congress of the aeronautical sciences
Event Dates: 19/09/2010 - 24/09/2010
Event Location: Niza, Francia
Title of Book: Proceedings of 27th International congress of the aeronautical sciences
Date: 2010
Subjects:
Faculty: E.T.S.I. Aeronáuticos (UPM)
Department: Vehículos Aeroespaciales [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

This paper details a practical approach for predicting the aeroelastic response (structure/aerodynamics coupling) of flexible pod/missile-type configurations with freeplay/hysteresis concentrated structural nonlinearities. The nonlinear aeroelastic response of systems in the presence of these nonlinearities has been previously studied by different authors; this paper compiles methodologies and related airworthiness regulations. The aeroelastic equations of the pod/missile configuration are formulated in state-space form and time-domain integrated with Fortran/Matlab codes developed ad hoc for dealing with freeplay/hysteresis nonlinearities. Results show that structural nonlinearities change the classical aeroelastic behaviour with appearence of non-damped motion (LCOs and chaotic motion).

More information

Item ID: 9503
DC Identifier: http://oa.upm.es/9503/
OAI Identifier: oai:oa.upm.es:9503
Official URL: http://icas2010.com/
Deposited by: Memoria Investigacion
Deposited on: 08 Nov 2011 09:24
Last Modified: 20 Apr 2016 17:53
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