Validation Studies for Aeroelastic Trim and Stability of Highly Flexible Aircraft
Autor: | Chong-Seok Chang, Zahra Sotoudeh, Dewey H. Hodges |
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Rok vydání: | 2010 |
Předmět: | |
Zdroj: | Journal of Aircraft. 47:1240-1247 |
ISSN: | 1533-3868 0021-8669 |
DOI: | 10.2514/1.46974 |
Popis: | High-altitude, long-endurance (HALE) aircraft are highly flexible, requiring nonlinear aeroelastic analysis. NATASHA (Nonlinear Aeroelastic Trim and Stability of HALE Aircraft) is a computer program developed to analyze the aeroelastic behavior of HALE aircraft. The underlying formulation is based on the published geometrically exact, fully intrinsic beam equations. This paper presents a wide range of results from NATASHA, comparing them with well-known solutions of beam stability and vibration problems, experimental data, or results from well-established computer codes. Despite the simplicity of the underlying formulation, results obtained confirm the accuracy of the analysis and its suitability for conceptual and preliminary design of HALE aircraft. |
Databáze: | OpenAIRE |
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