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Title: Optimization of transition maneuvers through aerodynamic vectoring
Authors: Maqsood, Adnan.
Go, Tiauw Hiong.
Issue Date: 2011
Source: Maqsood, A., & Go, T. H. (2012). Optimization of transition maneuvers through aerodynamic vectoring. Aerospace Science and Technology, 23(1), 363-371.
Series/Report no.: Aerospace science and technology
Abstract: This paper discusses the optimization of transition maneuvers between hover and cruise for small aircraft using a novel aerodynamic vectoring feature, which is achieved by allowing the wing to have variable incidence angle with respect to the fuselage. Compared to the fixed-wing aircraft case, the angle of incidence of the wing provides an additional independent control variable in the optimization problem formulation. The objective of the study is to achieve a transition scheme with minimal variation in altitude and reasonable thrust-to-weight ratio under specified transition time. The aerodynamics of the aircraft in pre- and post-stall regimes are obtained through wind-tunnel tests. The unsteady aerodynamic effects are incorporated in aerodynamic model to cater for rapid changes in the aircraft motion, which is modeled as three degree of freedom longitudinal dynamics. A nonlinear constrained optimization scheme based on Sequential Quadratic Programming (SQP) is used to generate the optimal maneuver motions. The results are discussed in light of their comparison with the fixed-wing case.
ISSN: 1270-9638
DOI: 10.1016/j.ast.2011.09.004
Rights: © 2011 Elsevier Masson SAS.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:MAE Journal Articles

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