Representation and analysis of control surface freeplay nonlinearity
| Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
|---|---|
| Data(s) |
01/11/2013
01/11/2013
02/08/2013
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| Resumo |
Different representations for a control surface freeplay nonlinearity in a three degree of freedom aeroelastic system are assessed. These are the discontinuous, polynomial and hyperbolic tangent representations. The Duhamel formulation is used to model the aerodynamic loads. Assessment of the validity of these representations is performed through comparison with previous experimental observations. The results show that the instability and nonlinear response characteristics are accurately predicted when using the discontinuous and hyperbolic tangent representations. On the other hand, the polynomial representation fails to predict chaotic motions observed in the experiments. (c) 2012 Elsevier Ltd. All rights reserved. Sao Paulo State Research Agency, FAPESP, Brazil Sao Paulo State Research Agency, FAPESP, Brazil [2007/08459-1] Coordination for the Improvement of Higher Education Personnel (CAPES), Brazil [0205109] Coordination for the Improvement of Higher Education Personnel (CAPES), Brazil |
| Identificador |
JOURNAL OF FLUIDS AND STRUCTURES, LONDON, v. 31, n. 6, pp. 79-91, MAY, 2012 0889-9746 http://www.producao.usp.br/handle/BDPI/37336 10.1016/j.jfluidstructs.2012.02.003 |
| Idioma(s) |
eng |
| Publicador |
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD LONDON |
| Relação |
JOURNAL OF FLUIDS AND STRUCTURES |
| Direitos |
closedAccess Copyright ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD |
| Palavras-Chave | #AEROELASTICITY #CONTROL SURFACE #FREEPLAY NONLINEARITY #EXPERIMENTAL IDENTIFICATION #DUHAMEL FORMULATION #POINCARE SECTION #AEROELASTIC SYSTEMS #AIRFOIL #BEHAVIOR #IDENTIFICATION #COMPUTATION #ENGINEERING, MECHANICAL #MECHANICS |
| Tipo |
article original article publishedVersion |
