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- Gurav, S.P. (author) doctoral thesis 2005
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de Ruiter, M.J. (author)During the last two decades, computational structural optimization methods have emerged, as computational power increased tremendously. Designers now have topological optimization routines at their disposal. These routines are able to generate the entire geometry of structures, provided only with information on loads, supports, and space to work...doctoral thesis 2005
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Van den Berg, J. (author)The value of models in process industries becomes apparent in practice and literature where numerous successful applications are reported. Process models are being used for optimal plant design, simulation studies, for off-line and online process optimization. For online optimization applications the computational load is a limiting factor. The...doctoral thesis 2005
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Lukszo, Z. (author), Weijnen, M.P.C. (author), Negenborn, R.R. (author), De Schutter, B. (author), Ilic, M. (author)The need for improving the operation and control of infrastructure systems has created a demand on optimization methods applicable in the area of complex sociotechnical systems operated by a multitude of actors in a setting of decentralized decision making. This paper briefly presents main classes of optimization models applied in PSE system...report 2006
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Marinescu, O. (author), Bociort, F. (author)Optical designers often insert or split lenses in existing designs. Here, we present, with examples from Deep and Extreme UV lithography, an alternative method that consists of constructing saddle points and obtaining new local minima from them. The method is remarkable simple and can therefore be easily integrated with the traditional design...conference paper 2006
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Bociort, F. (author), Van Turnhout, M. (author)In present-day optical system design, it is tacitly assumed that local minima are points in the merit function landscapewithout relationships between them. We will show however that there is a certain degree of order in the design landscapeand that this order is best observed when we change the dimensionality of the optimization problem and when...conference paper 2006
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Mirzaei, M. (author), Roshanian, J. (author), Nasrin Hosseini, S. (author)A gradient based method is presented for optimization of an airfoil configuration. The flow is governed by two dimensional, compressible Euler equations. A finite volume code based on unstructured grid is developed to solve the equations. The procedure is carried out for optimizing an airfoil with initial configuration of NACA 0012. The...conference paper 2006
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Bletzinger, K.U. (author), Gallinger, T. (author), Kupzok, A. (author), Wüchner, R. (author)In this paper the possibility of the optimization of coupled problems in partitioned approaches is discussed. As a special focus, surface coupled problems of fluid-structure interaction are considered. Well established methods of optimization are analyzed for usage in the context of coupled problems and in particular for a solution through...conference paper 2006
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Wild, J. (author), Brezillon, J. (author), Mertins, R. (author), Quagliarella, D. (author), Germain, E. (author), Amoignon, O. (author), Moens, F. (author)The design activity within the EUROLIFT II project is targeted towards an improvement of the take-off performance of a generic transport aircraft configuration by a re-design of the trailing edge flap. The involved partners applied different optimization strategies as well as different types of flow solvers in order to cover a wide range of...conference paper 2006
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- Homsi, P. (author) conference paper 2006
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Daumas, L. (author), Dinh, Q.V. (author), Kleinveld, S. (author), Rogé, G. (author)Preliminary results on shape optimization of a wing-body configuration aiming at reducing sonic boom overpressure will be discussed. The optimization process uses a CAD modeler and an Euler CFD code with adjoint. Thickness, scale, twist and camber at section level were used to obtain gains in ground pressure signature.conference paper 2006
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Papadimitriou, D.I. (author), Giannakoglou, K.C. (author)This paper summarizes progress, recently made in the Lab. of Thermal Turbomachines of NTUA, on the formulation and use of the continuous adjoint methods in aerodynamic shape optimization problems. The basic features of state of the art adjoint methods and tools which are capable of handling arbitrary objective functions, cast in the form of...conference paper 2006
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- Pironneau, O. (author) conference paper 2006
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Hol, C.W.J. (author)In many application areas of mechanical servo-systems the high demands on the performance often imply a tightly tuned feedback controller, that takes dynamical interaction into account. Model-based H-optimal controller synthesis is a well-suited technique for this purpose. However, the state-of-the-art synthesis approach yields controllers with...doctoral thesis 2006
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- Kumar, P. (author), Bauer, P. (author) conference paper 2007
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- Melman, J.C.P. (author) master thesis 2007
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Van Turnhout, M. (author), Bociort, F. (author)Local optimization algorithms, when they are optimized only for speed, have in certain situations an unpredictable behavior: starting points very close to each other lead after optimization to different minima. In these cases, the sets of points, which, when chosen as starting points for local optimization, lead to the same minimum (the so...conference paper 2007
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Bociort, F. (author), Van Turnhout, M. (author), Marinescu, O. (author)Saddle-point construction (SPC) is a new method to insert lenses into an existing design. With SPC, by inserting and extracting lenses new system shapes can be obtained very rapidly, and we believe that, if added to the optical designer’s arsenal, this new tool can significantly increase design productivity in certain situations. Despite the...conference paper 2007
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Wadman, W.S. (author)PCM Uitgevers is van de grootste uitgeverijen van Nederland. Ze produceert de Volkskrant, het NRC Handelsblad, het Algemeen Dagblad, de Trouw en diverse kleinere kranten. Voor het drukken van de kranten heeft PCM een vestiging in Amsterdam.Iedere ochtend wordt in Amsterdam een groot aantal kranten gedrukt, waarna zij door vrachtwagens worden...bachelor thesis 2007
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van der Helm, A.W.C. (author)Drinking water treatment plants automation becomes more sophisticated, more on-line monitoring systems become available and integration of modeling environments with control systems becomes easier. This gives possibilities for model-based optimization. In operation of drinking water treatment plants, the processes are usually optimized...doctoral thesis 2007