Searched for: subject%3A%22Maintenance%22
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Basten, T.G.H. (author), Schiphorst, F.B.A. (author)
Advanced maintenance strategies for infrastructure assets such as bridges or off shore wind turbines require actual and reliable information of the maintenance status. Structural health monitoring based on vibration sensing can help in supplying the input needed for structural health monitoring applications. However, large structures require a...
conference paper 2012
document
van der Beek, F.A. (author), Steijger, D.J.M. (author), van der Vorm, J.K.J. (author), Gallis, H.R. (author)
conference paper 2012
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van der Beek, F.A. (author), Steijger, D.J.M. (author), Gallis, H.R. (author), van der Vorm, J.K.J. (author)
Abstract is ook aanwezig.
public lecture 2012
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Kalkman, I.M. (author), Lentzen, S.S.K. (author), Courage, W.M.G. (author), Napoles, O.M. (author), Galanti, F.M.B. (author)
In general the condition of a structure can be assessed in terms of a performance indicator. For example, this can be the strength of a structure. An asset manager is concerned with ensuring that the performance of a structure does not fall below a given minimum level. This can be achieved by inspecting or monitoring the structure. As the...
conference paper 2011
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Wang, Z. (author), Bouwens, F. (author), Vullers, R. (author), Petré, F. (author), Devos, S. (author)
This paper addresses the development of an energy-autonomous wireless vibration sensor for condition-based monitoring of machinery. Such technology plays an increasingly important role in modern manufacturing industry. In this work, energy harvesting is realized by resorting to a custom designed thermoelectric generator. The developed wireless...
conference paper 2011
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García, S.J. (author), Fischer, H.R. (author), van der Zwaag, S. (author)
Several approaches and concepts to self healing materials have appeared in the literature over the last years, all presenting advantages and disadvantages, but definitely showing the great potential of this new class of materials to increase the lifetime of structures and to decrease maintenance costs. Also the field of coatings technology can...
article 2011
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Braam, H. (author), Rademakers, L.W.M.M. (author), Obdam, T.S. (author), van der Zee, T.J.J. (author), van de Pieterman, R.P. (author), Energieonderzoek Centrum Nederland (author)
Optimisation of maintenance strategies for offshore wind farms. A case study performed with the OMCE-Calculator
conference paper 2011
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van Rooij, L. (author), Welten, J.C. (author), Broos, W.J.C. (author), op den Camp, O.M.G.C. (author), Wentink, M. (author)
conference paper 2011
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Pozzi, M. (author), Zonta, D. (author), Santana, J. (author), Colin, M. (author), Saillen, N. (author), Torfs, T. (author), Amditis, A. (author), Bimpas, M. (author), Stratakos, Y. (author), Ulieru, D. (author), Bairaktaris, D. (author), Frondistou-Yannas, S. (author), Kalidromitis, V. (author)
The evaluation of seismic damage is today almost exclusively based on visual inspection, as building owners are generally reluctant to install permanent sensing systems, due to their high installation, management and maintenance costs. To overcome this limitation, the EU-funded MEMSCON project aims to produce small size sensing nodes for...
conference paper 2011
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Smelik, R.M. (author), Tutenel, T. (author), Kraker, K.J.de (author), Bidarra, R. (author)
With the ever increasing costs of manual content creation for virtual worlds, the potential of creating it automatically becomes too attractive to ignore. However, for most designers, traditional procedural content generation methods are complex and unintuitive to use, hard to control, and generated results are not easily integrated into a...
article 2011
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von Hellermann, M.G. (author), Barnsley, R. (author), Biel, W. (author), Delabie, E. (author), Hawkes, N. (author), Jaspers, R. (author), Johnson, D. (author), Klinkhamer, J.F.F. (author), Lischtschenko, O. (author), Marchuk, O. (author), Schunke, B. (author), Singh, M.J. (author), Snijders, B. (author), Summers, H.P. (author), Thomas, D. (author), Tugarinov, S. (author), Vasu, P. (author), TNO Industrie en Techniek (author)
Since the first feasibility studies of active beam spectroscopy on ITER in 1995 the proposed diagnostic has developed into a well advanced and mature system. Substantial progress has been achieved on the physics side including comprehensive performance studies based on an advanced predictive code, which simulates active and passive features of...
article 2010
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Polder, R.B. (author), Leggedoor, J. (author), Schuten, G. (author), Sajna, S. (author), Kranjc, A. (author), TNO Bouw en Ondergrond (author)
Cathodic protection delivers corrosion protection in concrete structures exposed to aggressive environments, e.g. in de-icing salt and marine climates. Working lives of a large number of CP systems are at least more than 13 years and probably more than 25 years, provided a minimum level of maintenance is applied. This involves routine checks of...
conference paper 2010
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TNO Arbeid (author), Strauchmann, M. (author), Haase, T. (author), Viitaniemi, J. (author), Kiviranta, S. (author), Vink, P. (author)
The demands on professional qualification and training courses have changed in recent years. The trend is toward more flexibility in terms of time, location and content. Workers who solely learn operations or maintenance procedures in different industrial units from text manuals and 2-D graphics may misinterpret instructions and make mistakes in...
bookPart 2010
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de Smidt-Destombes, K.S. (author), van der Heijden, M.C. (author), van Harten, A. (author), TNO Defensie en Veiligheid (author)
To achieve a high system availability at minimal costs, relevant decisions include the choice of preventive maintenance frequency, spare part inventory levels and spare part repair capacity. We develop heuristics for the joint optimisation of these variables for (a) a single k-out-of-N system under condition-based maintenance and (b) an...
article 2009
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Heemskerk, C. (author), de Baar, M. (author), Elzendoorn, B. (author), Koning, J. (author), Verhoeven, T. (author), de Vreede, F. (author), TNO Industrie en Techniek (author)
In ITER, maintenance operations in the vessel and in the Hot Cell will be largely done by Remote Handling (RH). Remotely performed maintenance actions tend to be more time-costly than actions performed by direct human access. With a human operator in the control loop and adequate situational feedback, a two-armed master slave manipulator system...
article 2009
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Koning, J. (author), Jaspers, R. (author), Doornink, J. (author), Ouwehand, B. (author), Klinkhamer, J.F.F. (author), Snijders, B. (author), Sadakov, S. (author), Heemskerk, C. (author), TNO Industrie en Techniek (author)
Already in the early phase of a design for ITER, the maintenance aspects should be taken into account, since they might have serious implications. This paper presents the arguments in support of the case for the maintainability of the design, notably if this maintenance is to be performed by advanced remote methods. This structure is compliant...
article 2009
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Elzendoorn, B. (author), de Baar, M. (author), Chavan, R. (author), Goodman, T. (author), Heemskerk, C. (author), Heidinger, R. (author), Kleefeldt, K. (author), Koning, J. (author), Sanders, S. (author), Späh, P. (author), Strauss, D. (author), Verhoeven, T. (author), de Vreede, F. (author), TNO Industrie en Techniek (author)
All ITER sub-systems of remote handling (RH) classes 1 and 2 have to be remotely maintainable. The maintenance strategy for these components has to ensure system availability after failure or scheduled maintenance. This paper shows how virtual reality (VR) simulation [1] can be used as a tool to analyze the maintenance process, to predict the...
article 2009
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Wouters, M.E.L. (author), Craenmehr, E.G.M. (author), Tempelaars, K. (author), Fischer, H.R. (author), Stroeks, N. (author), van Zanten, J. (author), TNO Industrie en Techniek (author)
Key properties of organic coatings, such as mechanical strength and solvent resistance, are greatly influenced by the structure of the polymeric binder. In general, a 3-dimensional polymeric network gives the best properties and therefore most performance coatings have a 3-dimensional network structure. However, 3-dimensional networks cannot...
article 2009
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Bajracharya, G. (author), Koltunowicz, T. (author), Negenborn, R.R. (author), Papp, Z. (author), Djairam, D. (author), de Schutter, B.D. (author), Smit, J.J. (author), TNO Industrie en Techniek (author)
In this paper, a model-predictive control based framework is proposed for modeling and optimization of the health state of power system equipment. In the framework, a predictive health model is proposed that predicts the health state of the equipment based on its usage and maintenance actions. Based on the health state, the failure rate of the...
conference paper 2009
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TNO Defensie en Veiligheid (author), Koevoets, K.G.M. (author), Bunk, S. (author)
Het zijn (wederom) roerige tijden voor de materieeldienst. Aangekondigde bezuinigingen kunnen mogelijk verdere versoberingen voor de de onderhoudsorganisatie gaan betekenen. Vast staat wel dat er bezuinigd en dus ingeleverd zal moeten worden. De druk op de materieeldienstorganisatie zal hierdoor naar verwachting verder toenemen. Daar komt nog...
article 2009
Searched for: subject%3A%22Maintenance%22
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