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Tabakovic, A. (author), Faloon, C. (author), O'Prey, D. (author)Conductive alginate capsules encapsulating a bitumen rejuvenator (HealRoad capsules) has demonstrated good healing abilities in pure bitumen and mortar mixes. HealRoad capsules can efficiently heal damage via induction heating. They also release the encapsulated rejuvenator, thereby rejuvenating aged bitumen. These findings indicate that...article 2022
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Bekdemir, C. (author), Doosje, E. (author), Seykens, X. (author)At present, the hydrogen combustion engine has gained renewed interest from the heavy-duty internal combustion engine (ICE) industry as an enabler for fast decarbonization of well-to-wheel emissions and reinforced by the vast commitment of key stakeholders to establish a green hydrogen infrastructure. Past studies have often focused on partial...conference paper 2022
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Kuiper, S. (author), Kramer, L. (author), Kooper, M. (author), Crowcombe, W.E. (author)TNO’s is developing Coarse Pointing Assembly technology aimed at the needs for future laser communication systems.other 2019
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Thompson, D. (author), Squicciarini, G. (author), Zhang, J. (author), Lopez Arteaga, I. (author), Zea, E. (author), Dittrich, M.G. (author), Jansen, H.W. (author), Arcas, K. (author), Cierco, E. (author), Magrans, F.X. (author), Malkoun, A. (author), Iturritxa, E. (author), Guiral, A. (author), Stangl, M. (author), Schleinzer, G. (author), Martin Lopez, B. (author), Chaufour, C. (author), Wändell, J. (author)The noise produced during a train pass-by originates from several different sources such as propulsion noise, noise from auxiliary equipment, aerodynamic noise and rolling noise. The rolling noise is radiated by the wheels and the track and is excited by the wheel and rail unevenness, usually referred to as roughness. The current TSI Noise...article 2018
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- Ntziachristos, L. (author), Vonk, W.A. (author), Papadopoulos, G. (author), van Mensch, P. (author), Geivanidis, S. (author), Mellios, G. (author), Papadimitriou, G. (author), Steven, H. (author), Elstgeest, M. (author), Ligterink, N.E. (author), Kontses, A. (author), Heinz, S. (author) report 2017
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van Loon, R.J. (author), Brouwer, R.F.T. (author), Martens, M.H. (author)Internationally, drowsy driving is associated with around 20% of all crashes. Despite the development of different detection methods, driver drowsiness remains a disconcerting public health issue. Detection methods can estimate drowsiness by directly measuring the physiology of the driver, or they can measure the effect that drowsiness has on...article 2015
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Schmeitz, A.J.C. (author), Alirezaei, M. (author)With higher level of vehicle automation, it becomes increasingly important to know the maximum possible tyre forces during normal driving. An interesting method in this respect is estimating the tyre-road friction from the resonance in the wheel speed signal, excited by road roughness. A simulation environment using the MF-Swift tyre model is...conference paper 2015
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Atuonwu, J.C. (author), van Asselt, C.J. (author), van Straten, G. (author), van Deventer, H.C. (author), van Boxtel, A.J.B. (author)This work presents an approach to compute dryer energy efficiency using air flowrate step responses and establish a link between drying energy efficiency and process controllability. The approach is based on the temperature drop between the dryer inlet and outlet air under adiabatic conditions and so decouples water evaporation from heat loss...article 2013
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Dittrich, M.G. (author), Engels, R. (author), Dupuis, H. (author), Meunier, N. (author)Der Normungsausschuss CEN TC256/WG3 Subgroup E befasst sich zurzeit mit dem Thema der indirekten Bestimmung der Rad-Schiene-Rauheit aus Schienenschwingungen. In diesem Zusammenhang wurden zur Vorbereitung einer Norm verschiedene Analyseverfahren in Hin-blick auf deren Repräsentativität, Wiederholbarkeit und Reproduzierbarkeit untersucht. Dazu...conference paper 2012
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Feenstra, P.J. (author), van der Horst, A.R.A. (author), Grácio, B.J.C. (author), Wentink, M. (author), TNO Defensie en Veiligheid (author)The goal of the present study was to explore how simulator motion cuing affects the driver's control performance of a car. Steering behavior was used as a measure of control performance. The experimental task was a slalom maneuver in which the velocity of the car was limited to 70 km/h. Subjective and objective variables were measured. The paper...article 2010
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Ploeg, J. (author), Schouten, H.E. (author), Nijmeijer, H. (author), TNO Industrie en Techniek (author)In order to support the development process of Advanced Driver Assistance systems for road vehicles, TNO is operating a hardware-in-the-loop test setup. In this facility, called VeHIL, vehicles in the direct neighborhood of the test vehicle are simulated using wheeled mobile robots. Due to the required type of maneuvers, these robots have...conference paper 2008
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Monk-Steel, A.D. (author), Thompson, D.J. (author), de Beer, F.G. (author), Janssens, M.H.A. (author), TNO Industrie en Techniek (author)Curve squeal noise is of growing concern for the railway industry as rail systems become more widespread in densely populated areas. In response to the pressure to minimise environmental pollution, there is a demand for a deeper understanding of the phenomenon and to develop a methodical approach to managing the wheel-rail system. Under curving,...article 2006
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Bosch-Rekveldt, M.G.C. (author), van Hoof, J.F.A.M. (author), TNO Wegtransportmiddelen (author)This study investigates the relevance of certain parameters for virtual testing of the driver's side OOP problem and attempts to answer the following questions: Which level of detail is needed in the airbag models to assess occupants' injury values for OOP scenarios? What is the influence of the airbag cover on the occupant response for OOP...conference paper 2004
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Kuijt-Evers, L.F.M. (author), Krause, F. (author), Vink, P. (author), TNO Arbeid (author)Comfort plays an increasingly important role in interior design of earth moving equipment. Although research has been conducted on vehicle interiors of wheel loaders and excavators, hardly any information is known about the operator's opinion. In this study a questionnaire was completed by machine operators to get their opinion about aspects...article 2003
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van Hoof, J.F.A.M. (author), Atkinson, P. (author), Telehowski, P. (author), Bir, C. (author), TNO Wegtransportmiddelen (author)Recent laboratory investigations suggest that a deploying airbag may fracture the forearm. These studies positioned the arm in an overhand grasp placing the forearm over the airbag module. However, there is little published data on how drivers grip the steering wheel and the general proximity of the upper extremity to the airbag module. The...report 2002
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Energieonderzoek Centrum Nederland (author), Weeda, M. (author), den Ouden, A.C.B. (author), de Smidt, R.P. (author), Dijkstra, J.W. (author), Weijers, E.P. (author)-report 2002
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Geerlings, A.C. (author), Thompson, D.J. (author), Verheij, J.W. (author), Technisch Physische Dienst TNO - TH (author)A promising means of reducing the rolling noise from trains is local shielding in the form of vehicle-mounted shrouds combined with low trackside barriers. This is much less visually intrusive than classic lineside noise barriers. Various experimental methods have been proposed that allow the performance to be assessed under static conditions,...article 2001
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Dittrich, M.G. (author), Janssens, M.H.A. (author), Technisch Physische Dienst TNO - TH (author)Some of the issues related to railway noise type testing are discussed and potential improvements to existing procedures are put forward. New and improved methods that also go beyond the scope of type testing are presented that help to characterize and analyze rolling noise more accurately. These methods are indirect measurement of total wheel...article 2000
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de Beer, F.G. (author), Verheij, J.W. (author), Technisch Physische Dienst TNO - TH (author)Pass-by noise from freight trains on straight tracks is dominated by rolling noise. The main contributions are generally accepted to originate from vibrations of the track and the wheels. However, there is uncertainty about the contributions from the bogie and the wagon superstructure. This article describes experimental methods to determine...article 2000
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Hogt, R.M.M. (author), van Oosten, J.J.M. (author), TNO Wegtransportmiddelen (author)Ths skid resistance of the road surface is one of the parameters that influence the active vehicle safety and consequently the traffic safety. Up till now, in the Netherlands skid resistance has been evaluated by means of of a statistical relation between the skid resistance value and accident risk. In order to be able to fulfil the demands of a...conference paper 2000
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