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Nonlinear reduced order modeling of complex wing models

Abstract : The focus of this paper is on the identification of nonlinear reduced order models for the prediction of the geometrically nonlinear structural response of cantilevered structures, including the wing of the Predator. These models represent the extension to large displacements/rotations of the modal models used in the linear range. The identification of their coefficients is carried out here from a full finite element model of the structure in a commercial software, Nastran was used in the present effort. Issues encountered in the past in successfully carrying out this identification are revisited and clarified. The development of a nonlinear reduced order model for the Predator is then performed and validated demonstrating the capabilities of these reduced order models in connection with complex structural models.
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Contributor : Christian Soize <>
Submitted on : Saturday, March 30, 2013 - 6:27:28 PM
Last modification on : Thursday, March 19, 2020 - 11:52:03 AM
Long-term archiving on: : Sunday, April 2, 2017 - 11:00:28 PM

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  • HAL Id : hal-00806394, version 1

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X.Q. Wang, R. A. Perez, M. P. Mignolet, R. Capillon, Christian Soize. Nonlinear reduced order modeling of complex wing models. 54th AIAA/ASME/ASCE/AHS/ ASC Structures, Structural Dynamics, and Materials Conference and Co-located Events (SDM 2013), AIAA/ASME/ASCE/AHS/ ASC, Apr 2013, Boston, Massachusetts, United States. pp.1-14. ⟨hal-00806394⟩

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