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Barrett, R. (author), Vos, R. (author), De Breuker, R. (author)This paper describes a new class of flight control actuators using Post-Buckled Precompressed (PBP) piezoelectric elements to provide much improved actuator performance. These PBP actuator elements are modeled using basic large deflection Euler-beam estimations accounting for laminated plate effects. The deflection estimations are then coupled...conference paper 2007
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Wever, R. (author), Schermer, R. (author), Smit, L. (author), Vos, L. (author)Besides contributing to the actual sustainability performance of a product-packaging combination, packaging can also play a role in communicating about sustainability. Such green marketing aspects of packaging may either focus on the sustainability credentials of the packaging itself, or on the credentials of the product contained (or even the...conference paper 2015
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Vos, R. (author), Hoogreef, M.F.M. (author)This paper presents a semi-analytical method for the weight estimation of fuselages with an oval cross-section, applied to blended wing body aircraft. The weight estimation of the fuselage primary structure is based on a structural analysis of two-dimensional crosssections and it is completed by a set of empirical relations for the weight...conference paper 2013
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Zhao, L. (author), Botha, C.P. (author), Truyen, R. (author), Vos, F.M. (author), Post, F.H. (author)Many computer aided diagnosis (CAD) schemes have been developed for colon cancer detection using Virtual Colonoscopy (VC). In earlier work, we developed an automatic polyp detection method integrating flow visualization techniques, that forms part of the CAD functionality of an existing Virtual Colonoscopy pipeline. Curvature streamlines were...conference paper 2008
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Vos, R. (author), Van Dommelen, J. (author)This paper details a new software tool to aid in the conceptual design of blended-wingbody aircraft. The tool consists of four main modules. In the preliminary sizing model a class I estimate of the maximum take-off weight, wing loading, and thrust-to-weight ratio is calculated. This information is used together with an initial guess of the 30...conference paper 2012
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Vos, R. (author), Scheepstra, J. (author), Barrett, R. (author)The paper begins with a brief historical overview of pressure adaptive materials and structures. By examining avian anatomy, it is seen that pressure-adaptive structures have been used successfully in the Natural world to hold structural positions for extended periods of time and yet allow for dynamic shape changes from one flight state to the...conference paper 2011
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Elmendorp, R.J.M. (author), Vos, R. (author), La Rocca, G. (author)A design method is presented that has been implemented in a software program to investigate the merits of conventional and unconventional transport airplanes. Design and analysis methods are implemented in a design tool capable of creating a conceptual design based on a set of toplevel requirements. In contrast to established design methods,...conference paper 2014
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Vos, R. (author), Barrett, R. (author)A new type of adaptive structure is presented that relies on pressurized honeycomb cells that extent a significant length with respect to the plane of the hexagons. By varying the pressure inside each of the cells, the stiffness can be altered. A variable stiffness in combination with an externally applied force field results in a fully embedded...conference paper 2010
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Vos, R. (author), Geuskens, F.J.J.M.M. (author), Hoogreef, M.F.M. (author)This paper outlines a new concept for a pressure cabin design for blended-wing-body aircraft. An overview is presented of the wide oval cabin and why it is believed to be a possible alternative to existing designs of non-circular pressurized cabins. The perimeter of the oval cross section is formed by four smoothly connecting arcs of different...conference paper 2012
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Barrett, R. (author), McMurtry, R. (author), Vos, R. (author), Tiso, P. (author), De Breuker, R. (author)This paper describes a new class of flight control actuators using Post-Buckled Precompressed (PBP) piezoelectric elements. These actuators are designed to produce significantly higher deflection and force levels than conventional piezoelectric actuator elements. Classical laminate plate theory (CLPT) models are shown to work very well in...conference paper 2005
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- Vos, J. (author), Cremers, B.B. (author), Drijkoningen, G.G. (author), Fokkema, J.T. (author) conference paper 1995
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- Gerritsma, M.I. (author), Vos, P. (author), Van der Steen, J.B. (author) conference paper 2008
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Vos, R. (author), Barrett, R. (author), Krakers, L. (author), Van Tooren, M. (author)This paper presents the use of a new class of flight control actuators employing Post-Buckled Precompressed (PBP) piezoelectric elements in morphing wing Uninhabited Aerial Vehicles (UAVs). The new actuator relieson axial compression to amplify deflections and control forces simultaneously. Two designs employing morphingwing panels based on PBP...conference paper 2006
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Li, Z. (author), Van Vliet, L.J. (author), Stoker, J. (author), Vos, F.M. (author)Image registration of medical images in the presence of large intra-image signal fluctuations is a challenging task. Our paper addresses this problem by introducing a new concept based on the structure tensor of the local phase. The local phase is calculated from the monogenic signal representation of the images. The local phase image is hardly...conference paper 2015
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Ruiz Garcia, A. (author), Brown, M.T.H. (author), Atherstone, D.M. (author), van Arnhem, N. (author), Vos, Roelof (author)This paper presents the identification of the aerodynamic model of the "Flying-V", a novel aircraft configuration. The aerodynamic model is estimated using flight test data from a 4.6\% sub-scale model. The dataset includes longitudinal and lateral-directional maneuvers performed by both the pilot and the autopilot to excite the aircraft dynamic...conference paper 2022
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Vos, D.A. (author), Verwer, S.E. (author)Recently it has been shown that many machine learning models are vulnerable to adversarial examples: perturbed samples that trick the model into misclassifying them. Neural networks have received much attention but decision trees and their ensembles achieve state-of-the-art results on tabular data, motivating research on their robustness....conference paper 2021
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Oosterom, W.J. (author), Vos, Roelof (author)The Flying V is a flying-wing aircraft, which promises a 20% reduction in fuel consumption compared to a conventional twin-aisle commercial transport. The passenger cabin, cargo hold and fuel tanks are all integrated into a highly-swept, cranked wing. This study presents the conceptual design of a three-member family of Flying-V aircraft with...conference paper 2022
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Proesmans, P. (author), Vos, Roelof (author)Sustainable aviation fuel (SAF) and liquid hydrogen are currently being studied to replace kerosene in commercial aviation to reduce global warming. In this study, the question is how do the airplane design variables change when minimizing the global warming impact of aircraft powered by SAF or LH2? Secondly, how do these aircraft compare in...conference paper 2022
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Benad, J. (author), Vos, Roelof (author)Ten years after the initial sketches of the Flying V were made, we intend to give an overview of the development of this concept until the present day. The Flying V is a new concept for an efficient aircraft. It is a pure flying wing which includes a V-shaped passenger cabin. In this work, we describe how the concept developed - from the first...conference paper 2022
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van Staveren, D. (author), Cuppen, Eefje (author), Heurkens, E.W.T.M. (author), Vos, Marije (author)Construction sectors have a long way to go to realize a circular economy. Many organizational barriers and institutional characteristics inhibit the sector’s transition to circular practices. Nevertheless, within this early phase of the transition, several building projects were realized. This research aims to learn from these frontrunners, in...conference paper 2022