MODAL AND AEROELASTIC ANALYSIS OF A HIGH-ASPECT-RATIO WING WITH LARGE DEFLECTION CAPABILITY

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KOOHI R.; SHAHVERDI H.; HADDADPOUR H.

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Journal Paper

Paper Information

Journal: INTERNATIONAL JOURNAL OF ADVANCED DESIGN AND MANUFACTURING TECHNOLOGY Year:2015 | Volume:8 | Issue:1 Page(s): 45-54

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Title

MODAL AND AEROELASTIC ANALYSIS OF A HIGH-ASPECT-RATIO WING WITH LARGE DEFLECTION CAPABILITY

Author(s)

KOOHI R. | SHAHVERDI H. | HADDADPOUR H. | Issue Writer Certificate

Keywords

FEM

JONE'S APPROXIMATE UNSTEADY AERODYNAMICS

LARGE DEFLECTION

WING AEROELASTIC STABILITY

Abstract

This paper describes a modified structural dynamics model for aeroelastic analysis of high-aspect-ratio wings undergoing large deformation behavior. To achieve this objective, a moderate deflection beam model is modified with some important LARGE DEFLECTION terms and then coupled with a state space unsteady aerodynamics model. Finite element method is used to discretize the equations of motion. A dynamic perturbation equation about a nonlinear static equilibrium is applied to determine the flutter boundary. The obtained results show good agreement in comparison with the other existing data such as high-altitude long-endurance (HALE) wing and Goland wing. It is found that the present aeroelastic tool have a good agreement in comparison with valid researches and also considering the effect of the geometric structural nonlinearity and higher order nonlinear terms on the flutter boundary determination is very significant.

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APA: Copy

KOOHI, R., SHAHVERDI, H., & HADDADPOUR, H.. (2015). MODAL AND AEROELASTIC ANALYSIS OF A HIGH-ASPECT-RATIO WING WITH LARGE DEFLECTION CAPABILITY. INTERNATIONAL JOURNAL OF ADVANCED DESIGN AND MANUFACTURING TECHNOLOGY, 8(1), 45-54. SID. https://sid.ir/paper/648266/en

Vancouver: Copy

KOOHI R., SHAHVERDI H., HADDADPOUR H.. MODAL AND AEROELASTIC ANALYSIS OF A HIGH-ASPECT-RATIO WING WITH LARGE DEFLECTION CAPABILITY. INTERNATIONAL JOURNAL OF ADVANCED DESIGN AND MANUFACTURING TECHNOLOGY[Internet]. 2015;8(1):45-54. Available from: https://sid.ir/paper/648266/en

IEEE: Copy

R. KOOHI, H. SHAHVERDI, and H. HADDADPOUR, “MODAL AND AEROELASTIC ANALYSIS OF A HIGH-ASPECT-RATIO WING WITH LARGE DEFLECTION CAPABILITY,” INTERNATIONAL JOURNAL OF ADVANCED DESIGN AND MANUFACTURING TECHNOLOGY, vol. 8, no. 1, pp. 45–54, 2015, [Online]. Available: https://sid.ir/paper/648266/en

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