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Martinez Fornos, Carlos (author)
We perform a study on acoustic metasurfaces, aiming to achieve simultaneously low resonance frequencies (below 400 Hz), high attenuation bandwidth (greater than 200 Hz), and high attenuation coefficient magnitudes (above 0.8), while maintaining a surface-like structure.<br/>We propose the implementation of geometrical optimization through...
master thesis 2024
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Mertzanis, Nick (author)
This thesis investigates the integration of algorithm unrolling and genetic algorithms (GA) for optimizing pump scheduling in water distribution systems (WDS), a critical component for ensuring energy-efficient water delivery. In the context of modern civilization’s reliance on clean, affordable water for diverse uses, the operation of a WDS,...
master thesis 2024
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van der Mark, Luuk (author)
Current design methods for oblique manifolds were first presented in the paper of London et al. in 1968. This method presents a single equation to shape the dividing manifold of several manifold configurations. However, current literature shows a potential to improve the current design method by implementing advanced techniques. This paper aims...
master thesis 2024
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Melles, Tycho (author)
With space constraints onshore, strong renewable resources available far offshore<br/>and growing green hydrogen demand, far offshore green hydrogen production<br/>may be an attractive option. To assess this potential, a literature review was<br/>conducted to identify the relevant technologies to be considered and suitable<br/>modelling methods....
master thesis 2024
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Zwaginga, J.J. (author), Lagemann, Benjamin (author), Erikstad, Stein Ove (author), Pruyn, J.F.J. (author)
Shipowners need to prepare for low-emission fuel alternatives to meet the IMO 2050 goals. This is a complex problem due to conflicting objectives and a high degree of uncertainty. To help navigate this problem, this paper investigates how methods that take uncertainty into account, like robust optimization and stochastic optimization, could be...
journal article 2024
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Vakili, S. (author), Khosravi, M. (author), Mohajerin Esfahani, P. (author), Mazo, M. (author)
We study the problem of identifying a linear time-varying output map from measurements and linear time-varying system states, which are perturbed with Gaussian observation noise and process uncertainty, respectively. Employing a stochastic model as prior knowledge for the parameters of the unknown output map, we reconstruct their estimates...
journal article 2024
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van der Beek, T. (author)
In the field of shipbuilding, there is a growing demand for faster and more efficient production processes, along with a need for swift adoption of new technologies. Modular production emerges as a potential solution, involving the development of a product family with a base platform and various modules. Instead of designing and producing each...
doctoral thesis 2023
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van Rooijen, Eva (author)
A recent study in The Netherlands, reports an expected shortage of 140,000 healthcare employees by 2031. Two main reasons for this shortage are an increased demand for healthcare and a shortage on the healthcare labour market. The irregular shifts and unconventional working hours make nurses quit their profession or refrain others from applying....
master thesis 2023
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Teertstra, Bouke (author)
The company H2 Marine Solutions has designed a zero-emission hydrogen powered boat. This boat is compared to its fossil fuel counterpart more than twice as heavy. The reason for this is that the system components that are used in the hybrid powertrain of the hydrogen powered boat are heavier. The main question of this research is: How can we...
master thesis 2023
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Ntagkras, Dimitris (author)
As the energy transition gains momentum, the development of effective energy storage technologies is crucial. Among these technologies, batteries are of utmost importance as they store chemical energy that can be converted into electrical energy. The operation of batteries is a complex process that involves the interplay of material technology,...
master thesis 2023
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van den Berg, Ruben (author)
The electric-pump cycle is a rocket engine configuration that uses an electric motor to power the pumps instead of a turbine. This offers several expected advantages such as simpler design, lower development costs, and easier restartability, but comes with reduced performance compared to conventional cycles. Previous research has primarily...
master thesis 2023
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Giesen, Lucas (author)
A new type of mobility device that functions as both a walker and a scooter is being developed to address some issues of current mobility solutions. Some key design parameters for the scooter mode of this scooter-walker hybrid must be optimized. Through literature, a number of simulated "tests", mostly about safety and manoeuvrability, are...
master thesis 2023
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van Geest, Jurrian (author)
Planning rolling stock maintenance based on prognostic data (Condition Based Maintenance, CBM) is a trend since the ideal timing for maintenance before failure can be planned. With the use of prognostics, a failure can be predicted so Corrective Maintenance (CM) can be avoided. Traditional rolling stock decision-making for Preventive Maintenance...
master thesis 2023
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Kantawala, Naeem (author)
The Netherlands aims to reduce greenhouse gas emissions by 49% before 2030, with the built environment contributing 15% of these emissions largely due to the heavy reliance on natural gas to meet space heating demands. To phase out natural gas, alternatives such as heat pumps and district heat networks are being considered. However, adapting...
master thesis 2023
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Rajappa, Naveen (author)
The primary objective of this research is to develop an energy management system for the Co-creation center (CCC) that maximizes the use of passive energy sources while maintaining indoor thermal comfort. Passive energy sources have the potential to significantly reduce the energy consumption of the building. However, to achieve optimal energy...
master thesis 2023
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Pels, Jasper (author)
The bending stiffness of a structure is highly dependent on its shape, and this relation can be utilized to allow for a structure to morph into different shapes during deformation. This paper focuses on shape-morphing into multiple shapes (Multi Shape-Morphing), and presents a design method for a parametric<br/>structure consisting of beams,...
master thesis 2023
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Bangera, Sankalp (author)
Composite structures are rapidly transforming the aerospace industry, driven by continuous advancements in manufacturing methods capable of producing optimized structures with variable stiffness that enables the creation of increasingly complex and efficient structures. This project focuses on the development of a global optimization method that...
master thesis 2023
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Keur, Hans (author)
In biology, phylogenetics is the study of the evolutionary history of and relations between e.g. species. Such data are often represented in trees. Remarkably, trees lack the representation of reticulation events, such as hybridization, while such events are believed to be important. One of the reasons why trees are widely used, is the enormous...
master thesis 2023
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Hermans, Floris (author)
The demand in global trade of goods is thriving in the recent post-COVID times and is forecast to increase to the highest levels of the past decade. This calls for global transportation companies to implement increasingly efficient and highly optimized transportation processes to fulfill both demand and their need for economic and environmental...
master thesis 2023
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Martorelli, Luca (author)
The use of CFD-based optimizations is becoming a standard for turbomachinery design. Although the use of such optimizations can lead to great improvements of the machine performances, there are still several shortcomings in the common design procedure of turbomachines. In fact, this entails the optimization of the component shape, and only a...
master thesis 2023
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