Modal and Aeroelastic Analysis of A High-Aspect-Ratio Wing with Large Deflection Capability
This paper describes a modified structural dynamics model for aeroelastic analysis of high-aspect-ratio wings undergoing large deformation behavior. To gain this aim, a moderate deflection beam model is modified with some important large deflection terms and then coupled with a state space unsteady...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Islamic Azad University-Isfahan (Khorasgan) Branch
2015-03-01
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| Series: | International Journal of Advanced Design and Manufacturing Technology |
| Subjects: | |
| Online Access: | https://admt.isfahan.iau.ir/article_534915_1b27d7674d1a0bf8429c62ae18632df5.pdf |
| _version_ | 1797657280089423872 |
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| author | R. Koohi H. Shahverdi H. Haddadpour |
| author_facet | R. Koohi H. Shahverdi H. Haddadpour |
| author_sort | R. Koohi |
| collection | DOAJ |
| description | This paper describes a modified structural dynamics model for aeroelastic analysis of high-aspect-ratio wings undergoing large deformation behavior. To gain this aim, 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. |
| first_indexed | 2024-03-11T17:42:15Z |
| format | Article |
| id | doaj.art-c4b68f0936d5477bbf14bfa748d08770 |
| institution | Directory Open Access Journal |
| issn | 2252-0406 2383-4447 |
| language | English |
| last_indexed | 2024-03-11T17:42:15Z |
| publishDate | 2015-03-01 |
| publisher | Islamic Azad University-Isfahan (Khorasgan) Branch |
| record_format | Article |
| series | International Journal of Advanced Design and Manufacturing Technology |
| spelling | doaj.art-c4b68f0936d5477bbf14bfa748d087702023-10-18T09:32:40ZengIslamic Azad University-Isfahan (Khorasgan) BranchInternational Journal of Advanced Design and Manufacturing Technology2252-04062383-44472015-03-01814554534915Modal and Aeroelastic Analysis of A High-Aspect-Ratio Wing with Large Deflection CapabilityR. Koohi0H. Shahverdi1H. Haddadpour2Department of, Mechanical and Aerospace Engineering, Science and Research Branch, Islamic Azad University, Tehran, IranDepartment of Aerospace Engineering and Center of Excellence in Computational Aerospace, Amirkabir University of Technology, Tehran, IranDepartment of Aerospace Engineering, Sharif University of Technology, Tehran, IranThis paper describes a modified structural dynamics model for aeroelastic analysis of high-aspect-ratio wings undergoing large deformation behavior. To gain this aim, 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.https://admt.isfahan.iau.ir/article_534915_1b27d7674d1a0bf8429c62ae18632df5.pdffemjone's approximate unsteady aerodynamicslarge deflectionwing aeroelastic stability |
| spellingShingle | R. Koohi H. Shahverdi H. Haddadpour Modal and Aeroelastic Analysis of A High-Aspect-Ratio Wing with Large Deflection Capability International Journal of Advanced Design and Manufacturing Technology fem jone's approximate unsteady aerodynamics large deflection wing aeroelastic stability |
| title | Modal and Aeroelastic Analysis of A High-Aspect-Ratio Wing with Large Deflection Capability |
| title_full | Modal and Aeroelastic Analysis of A High-Aspect-Ratio Wing with Large Deflection Capability |
| title_fullStr | Modal and Aeroelastic Analysis of A High-Aspect-Ratio Wing with Large Deflection Capability |
| title_full_unstemmed | Modal and Aeroelastic Analysis of A High-Aspect-Ratio Wing with Large Deflection Capability |
| title_short | Modal and Aeroelastic Analysis of A High-Aspect-Ratio Wing with Large Deflection Capability |
| title_sort | modal and aeroelastic analysis of a high aspect ratio wing with large deflection capability |
| topic | fem jone's approximate unsteady aerodynamics large deflection wing aeroelastic stability |
| url | https://admt.isfahan.iau.ir/article_534915_1b27d7674d1a0bf8429c62ae18632df5.pdf |
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