A quasi-linear approach for solving aeroelastic problems involving aerodynamic and structural nonlinearities

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

A coupled framework for addressing the nonlinear aeroelasticity problem is introduced. A two-degree of freedom (pitch and plunge) two-dimensional using has been used for demonstrating the framework. The structural analysis is capable of addressing both linear and nonlinear (hardening nonlinearity pitch mode, free play nonlinearity in pitch and plunge mode) effects. Both subsonic and transonic regimes are considered. The unsteady aerodynamic flow-field (for calculating aerodynamic loads) is evaluated using a 3-D Navier-Stokes solver (CFL3D 6.1). Structural nonlinearities are incorporated in the solver in a quasi-nonlinear fashion. The present calculations include aerodynamic nonlinearities as well as those mentioned above. The effect of including the nonlinear effects in the analysis has been studied.

Original languageEnglish (US)
Title of host publicationCollection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Pages1-11
Number of pages11
Volume1
StatePublished - 2003
Event44th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference - Norfolk, VA, United States
Duration: Apr 7 2003Apr 10 2003

Other

Other44th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference
CountryUnited States
CityNorfolk, VA
Period4/7/034/10/03

ASJC Scopus subject areas

  • Architecture

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    Munteanu, S., Rajadas, J., Nam, C., & Chattopadhyay, A. (2003). A quasi-linear approach for solving aeroelastic problems involving aerodynamic and structural nonlinearities. In Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference (Vol. 1, pp. 1-11)