Searched for: subject%3A%22Fokker%22
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Keesom, Thomas (author)
The potential for a correction by Rethorst for Vortex Lattice Methods (VLMs) exists to improve Longitudinal Static Stability predictions when applying the Rethorst correction to a slipstream engulfed horizontal stabilizer. The Rethorst correction has already proven to result in accurate lift predictions in VLMs for an isolated wing in a...
master thesis 2023
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Luteijn, Peter (author)
Research into Aerodynamic Stall Model Identification (ASMI) is an ongoing endeavor to create a model that achieves the highest fidelity, that aids in upset recovery training of pilots in Flight Simulator Training Devices (FSTD). Aircraft come in various configurations, one aircraft stall model cannot sufficiently provide a full understanding...
master thesis 2022
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van Manen, Bas (author)
Requirement management is an important part of the design process. A perfectly feasible design can be useless if it does not meet the requirements imposed on the design. With the upcoming automation in the design process, requirement management can become even more complicated. How are requirements driving the design and how are these...
master thesis 2022
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Sonneveld, Jente (author)
<br/>For tier 1 suppliers like GKN-Fokker, to remain competitive in the aerospace sector it is essential to offer design solutions fast whilst incorporating innovative technology. A methodology to enable rapid design and analysis studies of flaps and (innovative) deployment mechanisms is expected to be of great value in the proposal phase. To...
master thesis 2021
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van den Bos, Joshua (author)
In this thesis, a new methodology called the adjoint method is developed to select an optimal set of beam angles and beam weights in external beam radiotherapy. The Linear Boltzmann Transport Equation is specifically adjusted for proton transport and forms the Fokker-Planck approximation. The Fokker-Planck approximation models proton transport....
master thesis 2021
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Alglave, Arthur (author)
In the aerospace industry, demanding time constraints make it practically impossible to fully explore the design space of aircraft movable surfaces. The hinges, located at the interface of the movable surface, require a time-consuming analysis. This thesis presents a methodology enabling the near instantaneous selection of an optimal hinge. An...
master thesis 2019
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Marschalk, Sven (author)
As of April 2019, upset prevention and recovery training in flight simulation training devices is a mandatory practice for commercial and civil aircraft pilots. Aircraft stalls are a well-known upset type, therefore simulation of aircraft stall behavior is required. A key characteristic of stalls is the buffeting component, which in current...
master thesis 2019
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Lathouwers, D. (author), Perko, Z. (author)
In a previous paper (Hennink and Lathouwers, 2017) we developed a finite element discretization for the Boltzmann transport equation with forward peaked scatter modeled by the Fokker–Planck approximation. The discretization was based on the discontinuous Galerkin method in both space and angle. It was expected and found that the regular...
journal article 2019
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Vazquez Bustelo, Jaime (author)
In the last ten years, the airlines are demanding lower aircraft prices and fuel consumption. Aircraft manufacturers as well as component and sub-assembly manufacturers are adapting to this situation by optimizing existing aircraft configurations. Traditional design processes, due to their inability to capture multidisciplinarity at the early...
master thesis 2018
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Hennink, A. (author), Lathouwers, D. (author)
We present a new discretization of the mono-energetic Fokker–Planck equation. We build on previous work (Kópházi and Lathouwers, 2015) where we devised an angular discretization for the Boltzmann equation, allowing for both heterogeneous and anisotropic angular refinement. The angular discretization is based on a discontinuous finite element...
journal article 2018
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Bolomey, Bas (author)
Startups are a major source of innovation and are capable of doing things where larger firms are not capable of. Many corporates are therefore looking at opportunities to collaborate with startups, also called external venturing, and to capture their value. Although working with startups has many benefits and great opportunities for corporates,...
master thesis 2017
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Stokkermans, T.C.A. (author)
In light of the energy crisis of the early 1970's, NASA and industry gained a renewed interest in high-speed propellers for improved propulsive efficiency and explored the idea of swirl recovery vanes (SRV) to generate a net thrust from the residual swirl in the propeller slipstream. After this first effort on the aerial application of SRV, only...
master thesis 2015
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Lakerveld, J. (author)
Fokker Aerostructures is a Dutch company, specialized in developing, designing and manufacturing products and technologies for the aerospace and defense industry. Fokker is currently developing the E-Lighter®; a lightweight, portable energy source that uses diesel to generate electric power. At the moment it is solely being developed for the...
master thesis 2011
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Van Putten, D.S. (author), Kalikmanov, V.I. (author)
A new model describing the evolution of clusters in the processes of nucleation and growth is proposed. The diffusion flux in the nonstationary Fokker–Planck equation with an unknown distribution function is approximated by the closed form expression containing the steady-state solution of the Zeldovich–Frenkel equation. This is justified due to...
journal article 2009
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Maas, J. (author)
Stochastic processes in infinite dimensional state spaces provide a mathematical description of various phenomena in physics, population biology, finance, and other fields of science. Several aspects of these processes have been studied in this thesis by means of new analytic methods. Firstly, Kolmogorov equations associated with a class of...
doctoral thesis 2009
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Gillissen, J.J.J. (author), Boersma, B.J. (author), Mortensen, P.H. (author), Andersson, H.I. (author)
Fiber-induced drag reduction can be studied in great detail by means of direct numerical simulation [ J. S. Paschkewitz et al., J. Fluid Mech. 518, 281 (2004) ]. To account for the effect of the fibers, the Navier-Stokes equations are supplemented by the fiber stress tensor, which depends on the distribution function of fiber orientation angles....
journal article 2007
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Vlot, A. (author)
De ontwikkeling vande Aviobruggen voor Schiphol, 1958-1971, geschiedenis van het bedrijf Aviobridge en de relatie met Aviolanda en Fokker enerzijds en KLM anderzijds
book 2001
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de Jonge, J.B. (author), Hol, P.A. (author)
Fatigue meter data obtained during operational flights of Fokker F27 and Fokker F28 aircraft were re-processed and analyzed to study the variation in load experience between different aircraft of the same type. The Data covered about 470000 flights, made by 101 aircraft of 51 different operators. A simple algorithm was developed to quantify the...
report 1996
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Arendsen, P. (author), van Dalen, F. (author), Bill, C. (author), Rothwell, A. (author)
In a joint research project between the National Aerospace Laboratory (NLR) and the Faculty of Aerospace Engineering of Delft University of Technology (TUD) a multi-level system for the preliminary design of aircraft structures has been developed. The present system is essentially an extension of the existing Aircraft Design and Analysis System ...
report 1995
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Donker, J.C. (author), Piers, M.A. (author)
Under contract with the Netherlands Agency for Aerospace Programs (NIVR), the National Aerospace Laboratory NLR has investigated the feasibility of knowledge-based systems to assists ground crews in corrective maintenance of complex aircraft systems. For this feasibility study, the Fokker airconditioning system was chosen as a representative...
report 1992
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