Please use this identifier to cite or link to this item:
|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.||URI:||https://hdl.handle.net/10356/85444
|ISSN:||1270-9638||DOI:||http://dx.doi.org/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|
Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.