Searched for: contributor%3A%22van+Ostayen%2C+R.A.J.+%28mentor%29%22
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Palali, Burak (author)
master thesis 2024
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Lingmont, Roald (author)
In order to scale the planar flow casting (PFC) process to industrial levels a Python model is created. The model which is based on a combination of empirical and theoretical equations, is used to explore the limits of the process. The model is independently verified with a Comsol simulation, which is extended with solidification and heat...
master thesis 2023
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Koens, Dennis (author)
High-tech systems are subjected to strict temperature requirements. Therefore temperature control using cooling water is vital for thermal stability. Unfortunately, components like pumps and fluid couplings generate flow disturbances, resulting in mechanical vibrations that influence the performance of the system. This research focusses on the...
master thesis 2023
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Burghoorn, Rick (author)
Air bearings are a vital component to high tech machines and have been in widespread use since the 1960s. They provide near frictionless motion, have high stiffness and a near infinite lifetime. When looking at existing literature the influence of the porosity on the dynamic characteristics has not been researched in depth. Especially when...
master thesis 2023
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CHUNG, CHIA-YI (author)
The utilization of CubeSats as a cost-effective solution for satellite missions allows universities to engage in outer space research. Notably, the issue of increased tumbling rates during deployment is highlighted, attributed mainly to propulsion and guiding functions performed by existing contact actuators.<br/>The proposed solution in this...
master thesis 2023
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Blommestein, Daniel (author)
Nanoimprinting is a manufacturing method to replicate micro- and nanotextures on large-area substrates with ultraviolet-curable resins. Significant potential of large-area nanopatterning lies in its capacity to greatly enhance the performance of an abundance of devices and foster the creation of cutting-edge products. However, current large-area...
master thesis 2023
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Bleeker, Julian (author)
The research objective of this research is to develop a measurement method that can measure thin film thicknesses through a multilayer that consists of both surrounding thick layers and in between thin films. An optical non-contact measurement method is researched and developed to non-destructively measure the thickness of a liquid thin film,...
master thesis 2023
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Juch, Wieland (author)
Hydrostatic bearings are typically designed to operate on flat, parallel surfaces, but a flexible hydrostatic bearing that can adapt to uneven smooth surfaces would have broader applications. This thesis focuses on the challenges of implementing the whiffletree concept to support a large, deformable hydrostatic bearing on wavy surfaces, which...
master thesis 2023
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Neeft, Tobias (author)
Silicon wafers and solar cells are delicate components used in the semiconductor industries and energy industries. Handling and transportation can easily damage these components. Conventional handling methods with mechanical contact can cause various damages to these delicate surfaces. Air bearings can provide a solution by enabling an almost...
master thesis 2023
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van Kuik, Thobias (author)
A magnetorheological fluid is a type of smart fluid that can change its rheological properties when a magnetic field is applied to the fluid. The fluid is a suspension of magnetizable particles in a non-magnetic carrier fluid. When a magnetic field is applied to the fluid, the particles will form structures along the magnetic field lines. These...
master thesis 2022
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van der Wielen, Matthijs (author)
The use of optical fibres as distributed vision sensor within a contactless handling system is discussed in this study. The three primary light colours and a volume diffuser will be used to detect the edge of an object levitating on an air-bearing table. One building block of a bigger system is used that consists of one receiving fibre in the...
master thesis 2022
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Tromp, Bart (author)
Confocal microscopy is often used to make three-dimensional high-resolution images of biological samples. It is done by reflecting a laser beam off of a dichroic mirror, and focusing it on a sample with the use of a microscope. This sample is treated with a fluorescent dye. The dye molecules emit light of a higher wavelength with an intensity...
master thesis 2022
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Sterk, Reinout (author)
Due to more stringent greenhouse gas (GHG) emission regulations in the maritime industry, solutions are being sought to decrease the GHG emissions of crew transfer vessels used in offshore wind farms. Multiple alternative fuels and power generating systems can be used to decrease these emissions. In this research, a comparative study is...
master thesis 2022
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Schots, Joost (author)
Bone drilling is a surgical action required for bone fixation using plates. The holes are currently drilled using a large, conventional drill. This causes problems when limited space is available, de to the size of the drill. For that reason a new, small Compact Drilling System is proposed. In earlier research a compact self-feeding mechanism...
master thesis 2022
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Lok, Pieter (author)
The performance of hydrostatic bearings is in part decided by their lubrication-film height shape. Imaging the shape can be done by dissolving fluorescent dyes in the layer. However, current imaging techniques are rooted in heuristics, and as such, their physics, design parameters, and error sources are not quantitively understood. To fully...
master thesis 2022
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Pijnenburg, Kees (author)
Improved handling methods are required in order to decrease the manufacturing cost of solar cells and flat panel display. A potential method would be to use a contactless handling system based on air bearing technology. As the name implies, the substrate levitates on a thin film (~10 μm) of air. The viscous shear force is used to exert a lateral...
master thesis 2022
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Houwen, Jeroen (author)
In recent years, the increased need for renewable energy has put more interest in wind energy and therefore in making wind turbines more efficient and building them as efficiently and cheap as possible. Delft Offshore Turbines (DOT) is developing a drivetrain that replaces the heavy and expensive parts in the nacelle of a...
master thesis 2021
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de Koning, Ramon (author)
In conventional compressor technology, high pressure ratios are often achieved by multiple, successive compression stages. This is done to avoid high temperatures due to the adiabatic nature of most compression processes which deteriorates the working of oil lubrication. The aim of this work is to reduce a conventional four-stage system to only...
master thesis 2021
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Sonneveld, Dave (author)
Compliant joints have significant advantages compared to rigid-body hinges due to a monolithic design and the absence of friction, which prevents effects like wear, backlash and stick-slip behaviour. However, the loading capability is often limited and the support stiffness generally decreases during rotation, caused by the use of solid leaf...
master thesis 2021
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Copier, Rick (author)
Objective: this paper aims to evaluate the adhesive and frictional properties of the keratinised epithelium on the adhesive pads of tree frogs. Modeling methods: two modeling methods have been developed. One of these methods involves the implementation of discrete fibres in a relatively compliant material matrix while the other method involves...
master thesis 2021
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