Flutter and Divergence Characteristics of Composite Plate Wing | ||||
| International Conference on Aerospace Sciences and Aviation Technology | ||||
| Article 72, Volume 15, AEROSPACE SCIENCES & AVIATION TECHNOLOGY, ASAT - 15 – May 28 - 30, 2013, May 2013, Page 1-21 PDF (1.3 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/asat.2013.22181 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| M. Kassem Abbas1; Hany M. Negm2; M. Adnan Elshafei1 | ||||
| 1Egyptian Armed Forces, Egypt. | ||||
| 2Department of Aerospace Engineering, Cairo University, Cairo, Egypt. | ||||
| Abstract | ||||
| In the present work, an analytical investigation is introduced to determine the aeroelastic behavior of unswept, rectangular wings simulated by cantilevered composite plates using energy formulation and incompressible aerodynamic theory. Modified higher order shear deformation theory is used in the structural formulation. Doublet point method is used to solve the subsonic unsteady flow over the proposed rectangular wing. The flutter and divergence velocities are obtained using U-g method, which are validated by the analytical, finite element, wind tunnel test results available in the literature. The effect of composite fiber orientation on natural frequency, flutter and divergence speeds is discussed. | ||||
| Keywords | ||||
| Flutter; divergence; aeroelasticity; composite plate; unsteady aerodynamic; doublet point method; energy method | ||||
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