Searched for: faculty%3A%22Mechanical%255C%2BMaritime%255C%2Band%255C%2BMaterials%255C%2BEngineering%22
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Ranjan, R. (author), Ayas, C. (author), Langelaar, M. (author), van Keulen, A. (author)
A novel constraint to prevent local overheating is presented for use in topology optimization (TO). The very basis for the constraint is the Additive Manufacturing (AM) process physics. AM enables fabrication of highly complex topologically optimized designs. However, local overheating is a major concern especially in metal AM processes...
journal article 2022
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Hendrikse, H. (author), Hammer, T.C. (author), van den Berg, M.A. (author), Willems, Tom (author), Owen, C.C. (author), van Beek, C. (author), Ebben, Nick J.J. (author), Puolakka, Otto (author), Polojärvi, Arttu (author)
Basin tests were performed at the Aalto Ice Tank to gather data on ice-structure action and interaction from ice failing against a vertically sided cylindrical pile. The tests were performed with a real-time hybrid test setup, which combined physical and numerical components to simulate a range of test structures in real-time. The dataset...
journal article 2022
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Giele, R.J.P. (author), van Keulen, A. (author), Langelaar, M. (author)
Topology optimization methods improve the structural performance of components. However, in food processing, medical, high-precision, and other industries' designs should also fulfil the requirement of being cleanable. An important aspect of cleanability is drainability, which entails that fluids can always run off the structure under just...
journal article 2022
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Delissen, A.A.T.M. (author), Boots, Elwin (author), Laro, Dick (author), Kleijnen, Harry (author), van Keulen, A. (author), Langelaar, M. (author)
The design of high-precision motion stages, which must exhibit high dynamic performance, is a challenging task. Manual design is difficult, time-consuming, and leads to sub-optimal designs that fail to fully exploit the extended geometric freedom that additive manufacturing offers. By using topology optimization and incorporating all...
journal article 2022
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Fibbe, S.T. (author)
Due to increasing cost pressure, disturbances from customs and an opportunity seen in reducing costs by increasing the procurement and construction in the Far East, Damen Shipyards Gorinchem is changing the requirements for its supply chain. Changes to the supply chain however not only inflicts a large number of stakeholders, but the cost...
master thesis 2021
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Moghaddam, E.M.C. (author), Foumeny, E.A. (author), Stankiewicz, A.I. (author), Padding, J.T. (author)
This paper investigates the validity of azimuthal averaging of 3D temperature fields in the analysis of lateral heat transfer in dense particle packings. This is conducted by synthetic generation of 3D packing surrogates of spheres, cylinders and Raschig rings with tube-to-pellet diameter ratio, 3 < N < 6, using an in-house Rigid Body...
journal article 2021
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den Boer, E. (author), Wulff, Jörg (author), Mäder, UIf (author), Engwall, Erik (author), Bäumer, Christian (author), Perko, Z. (author), Timmermann, Beate (author)
Purpose: Pencil beam scanning (PBS) for moving targets is known to be impacted by interplay effects. Four-dimensional computed tomography (4DCT)-based motion evaluation is crucial for understanding interplay and developing mitigation strategies. Availability of high-quality 4DCTs with variable breathing traces is limited. Purpose of this work...
journal article 2021
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Ummels, R. (author), Castro, Saullo G.P. (author)
Recent research on variable stiffness laminates have shown both numerically and experimentally that further improvement on the buckling performance is possible by incorporating overlaps that result in variable thickness profiles. We present the concept of overlap-stiffened designs that take advantage of the non-linear coupling between the tow...
journal article 2021
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de Goederen, R. (author), Pu, S. (author), Silos Viu, M. (author), Doan, D. (author), Overeem, S. (author), Serdijn, W.A. (author), Joosten, K. F.M. (author), Long, X. (author), Dudink, J. (author)
Study objectives: Unobtrusive monitoring of sleep and sleep disorders in children presents challenges. We investigated the possibility of using Ultra-Wide band (UWB) radar to measure sleep in children. Methods: Thirty-two children scheduled to undergo a clinical polysomnography participated; their ages ranged from 2 months to 14 years. During...
journal article 2021
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Tsolakis, A. (author), Keviczky, T. (author)
Nonholonomic mechanical systems encompass a large class of practically interesting robotic structures, such as wheeled mobile robots, space manipulators, and multi-fingered robot hands. However, few results exist on the cooperative control of such systems in a generic, distributed approach. In this work we extend a recently developed...
journal article 2021
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Yibole, H. (author), Lingling-Bao, B. (author), Xu, J. (author), Alata, H. (author), Tegus, O. (author), Hanggai, W. (author), van Dijk, N.H. (author), Bruck, E. (author), Guillou, F. (author)
While rare-earth magnets exhibit unchallenged hard-magnetic properties, looking for alternatives based on inexpensive elements of non-critical supply remains of utmost interest. Here, we demonstrate that (Fe,Co)<sub>2</sub>(P,Si) single crystals combine a large magnetocrystalline anisotropy (K<sub>1</sub> ≈ 0.9 MJ m<sup>−3</sup> at 300 K),...
journal article 2021
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Wang, D. (author), Rueda, José L. (author), Rakhshani, E. (author), van der Meijden, M.A.M.M. (author)
Unlike synchronous generators, wind turbines cannot directly respond to large disturbances, which may cause transient instability, due to their power electronic-based interface and maximum power control strategy. To effectively monitor the influence of wind turbines, this paper proposes an approach that combines decision trees (DTs), and a...
journal article 2020
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van Woerkom, P.Th.L.M. (author)
Joan Muysken, full professor in the Afdeling der Werktuigbouwkunde en Scheepsbouwkunde of the TH Delft 1932-1944 and rector magnificus of the TH Delft in the period 1943 – 1944.
report 2020
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Deutz, D.B. (author), van der Zwaag, S. (author), Groen, P.C. (author)
As demand rises for flexible electronics, traditionally prepared sintered ceramic sensors must be transformed into fully new sensor materials that can bend and flex in use and integration. Negative temperature coefficient of resistance (NTC) ceramic thermistors are preferred temperature sensors for their high accuracy and excellent stability,...
journal article 2020
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van Hengel, I.A.J. (author), Gelderman, F. S.A. (author), Athanasiadis, S. (author), Minneboo, M.B. (author), Weinans, H.H. (author), Fluit, A. C. (author), van der Eerden, B.C.J. (author), Fratila-Apachitei, E.L. (author), Apachitei, I. (author), Zadpoor, A.A. (author)
The holy grail of orthopedic implant design is to ward off both aseptic and septic loosening for long enough that the implant outlives the patient. Questing this holy grail is feasible only if orthopedic biomaterials possess a long list of functionalities that enable them to discharge the onerous task of permanently replacing the native bone...
journal article 2020
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Hagen, N. (author)
A belt conveyor system is a commonly used mean of transportation for dry bulk material. The system components are subjected to wear because of the multiple rotating components. This will result in component failures on the long run. Maintenance or replacement actions are required for these components in order to prevent these system failures. In...
report 2019
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Olberts, O.L. (author)
report 2019
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Van Pampus, M.J. (author)
With growing demands on speed and amount of freight transport and simultaneous technological progress in data processing and the development of mobile applications, possibilities for the freight transport sector arise. In this paper we specifically look into the latest developments in the field of instant freight transport, i.e. services...
report 2019
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Scali, M. (author), Veldhoven, P.A.H. (author), Henselmans, P.W.J. (author), Dodou, D. (author), Breedveld, P. (author)
Needles with diameter under 1 mm are used in various medical applications to limit the risk of complication and patient discomfort during the procedure. Next to a small diameter, needle steerability is an important property for reaching targets located deep inside the body accurately and precisely. In this paper, we present a 0.5-mm prototype...
journal article 2019
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Plas, L.A. van der (author)
report 2018
Searched for: faculty%3A%22Mechanical%255C%2BMaritime%255C%2Band%255C%2BMaterials%255C%2BEngineering%22
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