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Agromayor, Roberto (author), Anand, N. (author), Müller, Jens Dominik (author), Pini, M. (author), Nord, Lars O. (author)Turbomachinery design is increasingly carried out by means of automated workflows based on high-fidelity physical models and optimization algorithms. The parametrization of the blade geometry is an essential aspect of such workflows because it defines the design space in which an optimal solution can be found. Currently, parametrization...journal article 2021
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De Lazzari, Elena (author), van den Boom, S.J. (author), Zhang, J. (author), van Keulen, A. (author), Aragon, A.M. (author)Enriched finite element methods have gained traction in recent years for modeling problems with material interfaces and cracks. By means of enrichment functions that incorporate a priori behavior about the solution, these methods decouple the finite element (FE) discretization from the geometric configuration of such discontinuities. Taking...journal article 2021
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Kouvelas, N. (author), Rao, V.S. (author), Venkatesha Prasad, Ranga Rao (author), Tawde, G.C. (author), Langendoen, K.G. (author)Long Range Wide Area Network (LoRaWAN) covers the needs of energy-constrained IoT-devices for operational longevity and extended communication range in a best-effort fashion. However, Lo- RaWAN’s minimalist design cannot handle the traffic from dense deployments with more than a few hundred devices connected to a single gateway, since each LoRa...conference paper 2020
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Zhu, Z. (author), la Rocca, G. (author), Zheng, Yao (author), Chen, Jianjun (author)Routing design of aircraft Electrical Wiring Interconnection System (EWIS) is time-consuming and error-prone. A solution, which automatically routes the EWIS inside the aircraft Digital MockUp (DMU), has been proposed and presented in the previous publications. The DMU, however, includes over-detailed features, which hardly influence the...journal article 2020
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Oprean, D. (author), Balakrishnan, B. (author)In this paper we examine the strategies used in 3D modeling for their efficiency. Our study explores the underlying cognitive process that drives design thinking as well the choice of strategies for using specific features in a given CAD software. We take a cognitive task analysis approach to examine our question. Of a total sample of 19...conference paper 2013
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Aditya, Trias (author), Iswanto, Febri (author), Wirawan, Ade (author), Laksono, Dany P. (author)Although 3D cadastre web map offer benefits to, among others, planning and disaster management application domains, they pose some technical constraints to be implemented using current web technologies. Some technical constraints may include field data processing, data compatibility and browser limitations. One of technical solutions in support...conference paper 2011
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Hijazi, I. (author), Ehlers, M. (author), Zlatanova, S. (author)To address the challenges of sustainable management and development of the built environment, engineers and facility managers need to exploit the 3D City models which grown in recent years to include interior space. A crucial issue for facilitating interaction with these 3D city models is the ability to integrate 3D BIM into the geospatial...journal article 2010
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Beirao, J.N. (author), Mendes, G. (author), Duarte, J. (author), Stouffs, R.M.F. (author)This paper shows the first results of a prototype implementation of a generative urban design tool. This implementation will form part of a design support tool for a GIS based platform defined to formulate, generate and evaluate urban designs. These three goals, formulation, generation and evaluation are integrated by connecting three modules...conference paper 2010
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Dumitrescu, R. (author)The present CAID systems insufficiently support designers with effective and intuitive tools for shape modelling. Designers' efficiency significantly decreases when shape alterations are performed. The research described in this thesis deals with the development of a methodology to support more effectively and efficiently the industrial...doctoral thesis 2007
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Sevilla, R. (author), Fernández-Méndez, S. (author), Huerta, A. (author)An improvement of the classical finite element method is proposed. It considers an exact representation of the geometry by means of the usual CAD description of the boundary with Non-Uniform Rational B-Splines (NURBS). For elements not intersecting the boundary, a standard finite element interpolation and numerical integration is used....conference paper 2006
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Wiegers, T. (author), Langeveld, L.H. (author), Vergeest, J.S.M. (author)Many designers do not use CAD tools for shape ideation. They consider CAD systems not appropriate for the ideation phase. This research investigates how designers ideate shape, in particular which terms they use to exteriorize shape. The goal is to be able to propose digital tools that are useful for shape ideation. For the inventory of shape...conference paper 2001
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Loeve, W. (author), van den Dam, R.F. (author)The NLR in the Netherlands renders scientific support and technical assistance for the design and operation of aircraft and spacecraft. The approach of NLR can be characterized by integration of experimental and theoretical investigations. For this an integrated computer and terminal network has been developed that links both NLR laboratory...report 1983