Searched for: subject%3A%22Box%255C%2Bwing%22
(1 - 11 of 11)
document
Eijkelhof, D. (author), Buendía Vela, Gabriel (author), Schmehl, R. (author)
High aerodynamic efficiency is a key design driver for airborne wind energy systems as it strongly affects the achievable energy output. Conventional fixed-wing systems generally use aerofoils with a high thickness-to-chord ratio to achieve high efficiency and wing loading. The box wing concept suits thinner aerofoils as the load distribution...
journal article 2023
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Buendía Vela, Gabriel (author)
Airborne wind energy systems convert the kinetic energy of wind into usable power. In general terms, this power is proportional to the ratio CL<sup>3</sup>/CD<sup>2</sup> of aerodynamic coefficients. From a structural perspective, the thickness-to-chord ratio of conventional AWE wings needs to be high to withstand the high aerodynamic loads. The...
master thesis 2022
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Varriale, Carmine (author)
The objective of the present dissertation is to show how redundant control surfaces can be exploited to shape an aircraft dynamic behavior and obtain desired flight mechanics performance. This is achieved by introducing novel approaches and methods for flight mechanics and control, mainly revolving around original implementations of traditional...
doctoral thesis 2022
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Piet, Robin (author)
This work is aimed at quantifying the expected advantages and disadvantages of fuel systems for box-wing aircraft, with respect to fuel systems for conventional aircraft. For this, the Multi Model Generator has been extended with an aircraft type-agnostic fuel system module capable of generating preliminary fuel system geometries, assessing the...
master thesis 2022
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Heimans, Colin (author)
To reduce the environmental impact of aviation, new aircraft configurations are investigated. One of these researches is the PARSIFAL project, that investigates an efficient box-wing aircraft for passenger transport. In previous work, an engine sizing tool is developed to design the engines of the PARSIFAL aircraft. The tool is developed as part...
master thesis 2021
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Wahler, Nicolas (author)
Classically, aircraft controls are designed such that every control surface type primarily influences a single degree of freedom by creating a moment. Increased availability of computational resources and novel aircraft configuration allow a deviation from this approach and to utilize individual control surfaces to generate moments around...
master thesis 2021
document
Varriale, C. (author), Voskuijl, M. (author)
This paper presents a Control Allocation formulation aimed at altering the dynamic transient response of an aircraft by exclusive means of the aerodynamic effectiveness of its control effectors. This is done, for a given Flight Control System architecture and, optionally, closed-loop performance, by exploiting the concept of Control Center of...
journal article 2021
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Varriale, C. (author), Voskuijl, M. (author)
This paper presents a generic trim problem formulation, in the form of a constrained optimization problem, which employs forces and moments due to the aircraft control surfaces as decision variables. The geometry of the Attainable Moment Set (AMS), i.e. the set of all control forces and moments attainable by the control surfaces, is used to...
journal article 2021
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de Wringer, Sam (author), Varriale, Carmine (author), Oliviero, F. (author)
A unified approach to aircraft mission performance assessment is presented in this work. It provides a detailed and flexible formulation to simulate a complete commercial aviation mission. Based on optimal control theory, with consistent injection of rules and procedures typical of aeronautical operations, it relies on generalized...
journal article 2020
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Groot, Roy (author)
In early design stages of aircraft, component sizing is to a large extent based on semi empirical methods, which are generally lacking for unconventional aircraft configurations. This increases the uncertainty of the performances of the generated design, such as its stability and controllability. This work aims at using a more physics-based...
master thesis 2019
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Zohlandt, C.N. (author)
The increasing airtraffic demands on aircraft capacity, sustainability and profitability, require the investigation of unconventional aircraft configurations with high aerodynamic efficiency, as the commonly applied fuselage-wing-tail configuration shows to reach an optimum in that respect which cannot be further improved using current...
master thesis 2016
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