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Poorte, V.K. (author), Bergsma, O.K. (author), van Campen, J.M.J.F. (author), Alderliesten, R.C. (author)Hydrogen is being investigated as aviation fuel, with the objective to achieve an energy transition for the aviation sector. Effective storage solutions are crucial to mitigate the aerodynamic penalty caused by its low volumetric energy density. The focus of this study is the integration of a cryo-compressed vacuum-insulated storage vessel into...conference paper 2024
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Bruggeman, A.M.R.M. (author), Nikitin, M. (author), la Rocca, G. (author), Bergsma, O.K. (author)During the early design stages of airframe components, many possible design architectures and production methods need to be traded to find the best configuration. Evaluating different production methods can be challenging as different production methods put different requirements on the product to be designed. This paper presents a new...conference paper 2024
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Gawehn, M.A. (author), Almar, Rafael (author), Bergsma, Erwin W. J. (author), de Vries, S. (author), Aarninkhof, S.G.J. (author)Optical satellite images of the nearshore water surface offer the possibility to invert water depths and thereby constitute the underlying bathymetry. Depth inversion techniques based on surface wave patterns can handle clear and turbid waters in a variety of global coastal environments. Common depth inversion algorithms require video from shore...journal article 2022
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de Zeeuw, C.M. (author), Peeters, D.M.J. (author), Bergsma, O.K. (author), Benedictus, R. (author)For pick-and-place processes to become widely implemented in industry a consistent and acceptable product quality needs to be achieved. One important quality criterion is the fiber angle deviations in the reinforcement. Handling a reinforcement will subject it to forces due to e.g. gravity and accelerations. These forces can result in in-plane...conference paper 2022
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Snel, Karin A.W. (author), Hegger, Dries (author), Mees, Heleen (author), Craig, Robin Kundis (author), Kammerbauer, Mark (author), Doorn, N. (author), Bergsma, Emmy (author), Wamsler, Christine (author)Environmental disasters, and especially floods, are among today's biggest sustainability challenges. The number and intensity of floods are increasing, challenging current governance approaches. Governments worldwide are looking to diversify their flood risk management and adaptation strategies, among others, by increasing resident involvement...journal article 2022
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de Zeeuw, C.M. (author), Peeters, D.M.J. (author), Bergsma, O.K. (author), Benedictus, R. (author)For pick-and-place processes to become widely implemented in industry a consistent and acceptable product quality needs to be achieved. In the state of the art it is assumed that reinforcements will be in perfect condition at the start of forming or draping. In reality the handling process can already result in undesired deformations. The...journal article 2022
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Stolper, Louis Cornelis (author), Bergsma, J.M. (author), Pruyn, J.F.J. (author)The energy transition of Dutch shipping is a complex gradual process due to the variety in vessels, cost and lifetime of assets, uncertainty, additional costs of climate-neutral alternatives and required regulatory changes. This paper aims to create a holistic overview of both the transition barriers and enablers. A focus is placed on the...journal article 2022
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Vandenplas, Jérémie (author), Calus, Mario P.L. (author), Eding, Herwin (author), van Pelt, Mathijs (author), Bergsma, Rob (author), Vuik, Cornelis (author)Background<br/>The preconditioned conjugate gradient (PCG) method is the current method of choice for iterative solving of genetic evaluations. The relative difference between two successive iterates and the relative residual of the system of equations are usually chosen as a termination criterion for the PCG method in animal breeding. However,...journal article 2021
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Bergsma, J.M. (author), Pruyn, J.F.J. (author), van de Kaa, G. (author)Energy transition is affecting the European maritime sector at an increasing rate. New technologies and regulations are being introduced with increasing speed. The ability to adapt to these changes is crucial for the economic success of the maritime sector. However, the sector is challenged by inertia due to its global nature and long-life...journal article 2021
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Schepper, Rob (author), Almar, Rafael (author), Bergsma, Erwin (author), de Vries, S. (author), Reniers, A.J.H.M. (author), Davidson, Mark (author), Splinter, Kristen (author)In this paper, a new approach to model wave‐driven, cross‐shore shoreline change incorporating multiple timescales is introduced. As a base, we use the equilibrium shoreline prediction model ShoreFor that accounts for a single timescale only. High‐resolution shoreline data collected at three distinctly different study sites is used to train...journal article 2021
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Reurings, C. (author), Koussios, S. (author), Bergsma, O.K. (author), Vergote, K. (author), Paeshuyse, L. (author), Benedictus, R. (author)A realistic wear test was developed for porous thermal insulation systems exposed to high temperature turbulent gas flow, because it is essential for the development of existing and new concepts of such insulation and therefore also for the performance of processes that depend on such insulation. Wear is crucial and often dominant for the...journal article 2021
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Reurings, C. (author), Koussios, S. (author), Bergsma, O.K. (author), Breugem, W.P. (author), Vergote, K. (author), Paeshuyse, L. (author), Benedictus, R. (author)The purpose of this work is to experimentally establish the combined influence on the flow and thermal resistance of an exhaust pipe wall formed by a porous, compliant layer with overlying discrete roughness elements exposed to the pulsating exhaust gas flow of a combustion engine. Through measuring the streamwise pressure drop over and...journal article 2020
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Influence of geometrical parameters on the strength of Hybrid CFRP-aluminium tubular adhesive jointsLavalette, N. (author), Bergsma, O.K. (author), Zarouchas, D. (author), Benedictus, R. (author)Tubular adhesive joints, used in truss structures to join pultruded carbon fibre-reinforced polymer members to aluminium nodes, are modelled with varying dimensions. The numerical model uses a Cohesive Zone Modelling formulation with a trapezoidal traction-separation law for the adhesive layer, and experimental tests are carried to validate...journal article 2020
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Verbeek, Ruud (author), 't Hart, Pieter (author), Pruyn, J.F.J. (author), Bergsma, Jurrit (author)A first exploration of potential fuels for the Dutch Maritime Sector that will allow the sector to achieve the energy transition goals of 2050. A first comparison on costs of the power plants and life time fuel is made. Including, accepting a mix of green and grey fuel sources. The output is of use for anyone in the sector interested in the...report 2020
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de Zeeuw, C.M. (author), Peeters, D.M.J. (author), Bergsma, O.K. (author), Benedictus, R. (author)For the application of composite materials to become more widespread and replace traditional materials their manufacturing processes and final products will need to be competitive and be e.g. lighter, stronger or stiffer and quicker, easier or more cost-efficient to produce than traditional materials. The state of the art for pick-and-place...review 2020
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Chmura, L.A. (author), Ghaffarian Niasar, M. (author), Bergsma, D. (author)In recent years, the architecture of the power system has been the subject of a major change. The commonly known structure with centralized generation and one directional power flow, gives gradually the place to the new concept of the power network where both the energy generators and consumers are distributed. Particularly, the continuously...conference paper 2019
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Lavalette, N. (author), Bergsma, O.K. (author), Zarouchas, D. (author), Benedictus, R. (author)In the context of lightweight structure design for the transportation and robotics industries, new types of composite structures are being developed, in the form of trusses made of fiber-reinforced polymer composite members of small diameter. The main objective of this work is to study adhesive joints, bonding pultruded composite tubes inside...conference paper 2018
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Çelik, O. (author), Shroff, S. (author), Teuwen, Julie J.E. (author), Bergsma, O.K. (author), Benedictus, R. (author)Laser assisted automated tape or fiber placement (LATP/LAFP) with in-situ consolidation is a promising technique for manufacturing large structures, eliminating the limitations of autoclave curing. Currently, 2-D models are mostly preferred for the thermal analysis of the process. A 3-D, transient thermal finite element model is developed to...conference paper 2018
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Callens, S.J.P. (author), Bergsma, O.K. (author)Two-matrix composites combine fibers with two distinct matrices. This is achieved by impregnating fiber bundles with a high-stiffness matrix and embedding the cured bundles in a flexible matrix. Two-matrix composites have been shown to offer unprecedented combinations of transverse flexibility and longitudinal tensile strength, and could offer...journal article 2018
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Lavalette, N. (author), Bergsma, O.K. (author), Zarouchas, D. (author), Benedictus, R. (author)In the context of lightweight structure design for the transportation and robotics industries, new types of composite structures are being developed, in the form of trusses made of fiber-reinforced polymer composite members of small diameter (a few millimeters thick at most). Some concepts of wound trusses can be found in the literature, but...journal article 2017