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van Dam, Leanne (author)
The aviation industry faces the challenge of reducing its climate eects. This paper aims to determine whether optimizing flight trajectories can reduce the environmental impact of aircraft during the climb and descent phases. It addresses the research gap in sustainable flight trajectory optimization by combining state-of-the-art research on...
master thesis 2022
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Sun, Junzi (author)
Trajectory optimization has been an active area of research for air transport studies for several decades. But almost all flight optimizers proposed in the literature remain close-sourced, which presents a major disadvantage for the advancement of scientific research. This optimization depends on aircraft performance models, emission models, and...
journal article 2022
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Sun, Junzi (author), Olive, Xavier (author), Delahaye, Daniel (author)
Inefficiencies in flight operations, like deviations and non-optimal flight speed or altitude, are directly linked to flight emission inefficiencies. Quantifying these emission inefficiencies and studying potential mitigation strategies is certainly beneficial for the sustainability of the aviation industry. In this paper, we analyze emission...
conference paper 2022
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Ferreira de Brito, B.F. (author), Agarwal, Achin (author), Alonso-Mora, J. (author)
Autonomous navigation in dense traffic scenarios remains challenging for autonomous vehicles (AVs) because the intentions of other drivers are not directly observable and AVs have to deal with a wide range of driving behaviors. To maneuver through dense traffic, AVs must be able to reason how their actions affect others (interaction model)...
journal article 2022
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Carzana, L. (author), Visser, P.N.A.M. (author), Heiligers, M.J. (author)
Solar sailing is a spacecraft propulsion method relying solely on solar radiation pressure to provide thrust and is therefore propellantless by nature. Although it represents a practical and promising propulsion system particularly suited for heliocentric flight regimes, near-term sailcraft missions will remain Earth-bound due to the current...
conference paper 2021
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Niklaβ, Malte (author), Grewe, V. (author), Gollnick, Volker (author), Dahlmann, Katrin (author)
Approximately 50–75% of aviation's climate impact is caused by non-CO<sub>2</sub> effects, like the production of ozone and the formation of contrail cirrus clouds, which can be effectively prevented by re-routing flights around highly climate-sensitive areas. Here, we discuss options how to incentivize re-routing approaches and apply...
journal article 2021
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Magyar, Bence (author), Tsiogkas, Nikolaos (author), Ferreira de Brito, B.F. (author), Patel, Mayank (author), Lane, David (author), Wang, Sen (author)
Learning from Demonstration (LfD) is a family of methods used to teach robots specific tasks. It is used to assist them with the increasing difficulty of performing manipulation tasks in a scalable manner. The state-of-the-art in collaborative robots allows for simple LfD approaches that can handle limited parameter changes of a task. These...
journal article 2019
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Heiligers, M.J. (author), Fernandez, Juan M. (author), Stohlman, Olive R. (author), Wilkie, W. Keats (author)
This paper proposes the use of solar-sail technology currently under development at NASA Langley Research Center for a CubeSat rendezvous mission with asteroid 2016 HO3, a quasi-satellite of Earth. Time-optimal trajectories are sought for within a 2022–2023 launch window, starting from an assumed launcher ejection condition in the Earth-Moon...
journal article 2019
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Saß, Konsti (author)
Tilt-rotor aircraft combine the helicopter’s benefit of VTOL capability and the flight performance that turboprops possess on range, speed and endurance. Tilt-rotor aircraft have the potential to decrease airport congestion and average flight delay in passenger transportation, while benefits are numerous in i.e. search and rescue, disaster...
master thesis 2018
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González Puerta, A. (author)
The role of traditional entry guidance systems is to ensure that the vehicle is brought from a nominal entry interface point (EIP) to the neighborhood of a designated landing site at an acceptable energy state. Such systems are designed in such a way that the landing site can be safely reached even if off-nominal conditions are present at the...
master thesis 2017
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Ho-Huu, V. (author), Hartjes, S. (author), Visser, H.G. (author), Curran, R. (author)
In an effort to allow to increase the number of aircraft and airport operations while mitigating their negative impacts (e.g., noise and pollutant emission) on near-airport communities, the optimal design of new departure routes with less noise and fuel consumption becomes more important. In this paper, a multi-objective evolutionary algorithm...
journal article 2017
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Appeldoorn, B. (author)
master thesis 2016
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van Hellenberg Hubar, M.E.G. (author)
A tool is developed that is able to optimize the trajectories of multiple aircraft that fly in formation in order to obtain the minimum total fuel consumption. Several experiments are conducted to investigate the benefits of formation flight for commercial aircraft. Finally, also the influences of wind and delay on the trajectories of the...
master thesis 2016
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Ceulemans, B. (author)
Currently, only one Standard Instrument Departure (SID) track and one flight procedure is used per runway departure fix combination. In contrast to tailored arrivals, the potential benefit of tailored departures has been left relatively undiscovered. The research objective is to quantify the potential benefit of tailored SID-s and profile...
master thesis 2016
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Corpaccioli, L. (author), Noomen, R. (author), De Smet, S. (author), Parker, J.S. (author), Herman, J.F.C. (author)
Satellite solar observatories have always been of central importance to heliophysics; while there have been numerous such missions, the solar poles have been extremely under-observed. This paper proposes to use low-thrust as well as multiple gravity assists to reach the enormous energies required obtain high heliocentric inclinations. Two novel...
conference paper 2015
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Zhong, Z. (author)
The long-haul flights of airlines are impacted by the en-route wind fields. Flights on the same route with different directions may have significantly different flight performances. It may benefit to airlines in terms of fuel cost and on-time performance if the optimal long-haul routes are able to plan. However, the wind direction and strength...
master thesis 2014
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Filipe, N.R.S. (author)
master thesis 2008
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Hogenhuis, R.H. (author), Hebly, S.J. (author), Visser, H.G. (author)
conference paper 2008
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Chu, W. (author)
Trajectory optimization is an essential part of space plane mission design. One important aspect of trajectory optimization for re-entry vehicles is to minimize the total heat load at the surface when it returns and the heat flux should remain below certain limit, meanwhile, the vehicle should land at the desired point. The methods used for re...
master thesis 2007
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Mooij, E. (author)
report 1994
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