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- Vrouwenvelder, T. (author) article 2021
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Roubos, A. (author), Peters, D.J. (author), Groenewegen, L. (author), Steenbergen, R.D.J.M. (author)Design methods for marine structures have evolved into load and resistance factor design, however existing partial safety factors related to berthing velocity and loads have not been verified and validated by measurement campaigns. In this study, field observations of modern seagoing vessels berthing in Bremerhaven, Rotterdam and Wilhelmshaven...article 2018
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Witvoet, G. (author), Nijenhuis, J.R. (author), Kramer, L. (author)The preparations for the design and construction of the Extremely Large Telescope (ELT) are in full swing. One of the most critical components of this enormous telescope is its segmented primary mirror (M1), for which Netherlands Organisation for Applied Scientific Research (TNO), in collaboration with VDL, has designed the mechanical segment...conference paper 2018
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Matthews, S. (author), Bigaj-van Vliet, A. (author), Walraven, J. (author), Mancini, G. (author), Dieteren, G. (author)Discussions have been underway in fib (Fédération Internationale du Béton) about advancing the fib Model Code for concrete structures. These include the fib international workshop in The Hague (June 2015), the fib MC2020 Core Group meeting in Madrid (December 2015), and a series of follow-up worldwide consultations on the fib ambition regarding...article 2018
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Masin, M. (author), Palumbo, F. (author), Myrhaug, H. (author), De Oliveira Filho, J.A. (author), Pastena, M. (author), Pelcat, M. (author), Raffo, L. (author), Regazzoni, F. (author), Sanchez, A.A. (author), Toffetti, A. (author), de la Torre, E. (author), Zedda, K. (author)In the last few years, besides the concepts of embedded and interconnected systems, also the notion of Cyber-Physical Systems (CPS) has emerged: embedded computational collaborating devices, capable of sensing and controlling physical elements and, often, responding to humans. The continuous interaction between physical and computing layers...conference paper 2017
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Bosschaart, C. (author), Jansen, H.W. (author), de Jong, C.A.F. (author), Basten, T. (author)A concept for underwater machinery noise mitigation of future civil and military ships is the application of a common deck structure, supporting multiple machines, which is installed on resilient mounts on the ship's foundation structure. TNO is addressing the availability and testing of tools to be able to set realistic targets for the radiated...conference paper 2017
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Walters, C.L. (author), Dragt, R.C. (author)Current codes and norms allow for structures to be operated in the transition between ductile and brittle behavior. Further, they often treat the Ductile to Brittle Transition Temperature as a constant even though it is well known to depend on a variety of factors, such as loading rate, constraint, and prior cold deformation. This paper roposes...conference paper 2016
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Steenbergen, R.D.J.M. (author), Koster, T. (author), Geurts, C.P.W. (author)Since 2006, a number of countries developed reports on climate change following the IPCC 4th assessment reports. For the Netherlands, the Royal Netherlands Meteorological Institute (KNMI) presented four new climate scenarios. Typically, climate change is described in terms of average changes, but much of the social and economic costs associated...article 2012
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Hegeman, J.B.J. (author), Luzginova, N.V. (author), Jong, M. (author), Groeneveld, H.D. (author), Borsboom, A. (author), Stuivinga, M.E.C. (author), van der Laan, J.G. (author)The mechanical properties of two explosively formed saddle shaped 60 mm thick plates of 316L(N)-IG steel with and without an electron beam weld have been investigated. Two different conditions have been characterized: (1) Reference condition and (2) ITER relevant condition. The reference material exhibits consistent results for both plates,...article 2011
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Polder, R.B. (author), Peelen, W.H.A. (author), Neeft, E.A.C. (author), Stoop, B.T.J. (author), TNO Bouw en Ondergrond (author)Over the last 25 years, cathodic protection (CP) of reinforced concrete structures suffering from chloride induced reinforcement corrosion has shown to be successful and durable. CP current causes steel polarisation, electrochemical reactions and ion transport in the concrete. CP systems are designed based on experience, which results in...article 2010
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TNO Industrie en Techniek (author), Nijenhuis, J.R. (author), Hamelinck, R.F.M.M. (author), Braam, B.C. (author), Cayrel, M. (author)The largest optical telescope in the world will be the E-ELT. Its primary mirror will be 42m in diameter. This mirror will consist of 984 hexagonal segments that are all individually supported. Each mirror will be controlled in six DOF while local shaping of the segments is provided by so called warping harnesses. These will correct for focus,...conference paper 2010
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- Mediavilla Varas, J. (author), Soetens, F. (author) conference paper 2010
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Scholten, N.P.M. (author), Vrouwenvelder, A.C.W.M. (author), TNO Bouw en Ondergrond (author)Since 1992 there have been a number of proposals to renew calculation methods available to assess the structural safety of existing buildings. But without operational results. Upon publication of the Eurocodes NL decided to renew and to include them in the Dutch building regulations. The question was how. One decided to develop a new Dutch...conference paper 2009
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Snijder, H.H. (author), Hoenderkamp, J.C.D. (author), Bakker, M. (author), Steenbergen, H.M.G.M. (author), de Louw, C.H.M. (author), TNO Bouw en Ondergrond (author)Channel sections are widely used in practice as beams. However, design rules for eccentrically loaded (not through shear centre) beams with channel cross-sections are not available in Eurocode 3. In this paper five proposed design rules are summarised, explained and their validity is checked by Finite Element analyses. The design rules yield...article 2008
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Sperling, C.P. (author), Simons, L.P.A. (author), Bouwman, W.A.G.A. (author), TNO Informatie en Communicatietechnologie (author)Designing e-services which have to function in a multi-channel context has proved to be challenging for organizations. Previous research has shown that structured design methods are useful to structure the design process. In this paper we proceed from an existing method (which identifies multi-channel customer needs and functional requirements)...conference paper 2007
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Technisch Physische Dienst TNO - TH (author), van den Dool, T.C. (author), Kamphues, F.G. (author), Fouss, B. (author), Henrioulle, K. (author), Hogenhuis, H. (author)TNO TPD, in cooperation with Micromega-Dynamics and Dutch Space, has designed an advanced Optical Delay Line (ODL) for use in future ground based and space interferometry missions. The work is performed under NIVR contract in preparation for GENIE and DARWIN. Using the ESO PRIMA DDL requirements as a baseline, the delay line can be used for...conference paper 2004
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TNO Bouw (author), Geurts, C.P.W. (author), van Staalduinen, P.C. (author), de Wit, M.S. (author)The most vulnerable parts of buildings with respect to wind loading are facades and roofs. Current standards on wind loading provide data to determine design loads for the elements in facades and roofs. These data are available for a limited number of simple building shapes. Up to now there is no common procedure to determine local loads for...article 2004
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Verver, M.M. (author), van Hoof, J.F.A.M. (author), TNO Wegtransportmiddelen (author)Higher demands by people on the performance of vehicles and the comfort-related physical complaints by professional drivers have led to an increasing demand for more comfortable cars. Car manufacturers use comfort as an item to distinguish themselves from their competitors. However, the development and introduction of a new, more-comfortable car...conference paper 2003
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Sudmeijer, K.J. (author), Wentzel, C. (author), Lefeber, B.M. (author), Kloosterman, A. (author)In this paper a summary is presented of the technology development in the Netherlands focussed on the design and development of a metallic aerodynamic control surface for the future European reusable launcher. The applied materials are mainly Oxide Dispersion Strengthened (ODS) alloys produced by powder metallurgy. The main design problems for...conference paper 2002
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Stark, J.W.B. (author), van der Vossen, S. (author), Brekelmans, J.W.P.M. (author)Corus UK Ltd has developed a new system for use in double skin composite panels (Bi-Steel). Analytical and a numerical models have been developed to gain insight into the physical behaviour of these plates. In this paper both models as well as design rules for the verification of sandwich elements are presented.conference paper 2000
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