Searched for: subject:"deformation"
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Vummidi, Narayanee (author)
In the Krafla region in North East Iceland, a change in the deformation pattern was observed in 2018. Since the 1975-1984 rifting event, there was subsidence seen in the Krafla caldera and along the fissure swarm. This subsidence was explained by deflation which decreased exponentially along the years. In 2018, this deformation pattern reversed,...
master thesis 2020
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Raghunathan, P. (author)
The Netherlands has for long been witnessing problems due to subsidence. While urban infrastructure is mostly safeguarded from differential settlement by deep pile foundations, the same cannot be said about greenhouses. The greenhouses of the Netherlands has enabled the country to become the largest exporter of vegetables, second only to the...
master thesis 2020
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van Parijs, Vincent (author)
Hydrostatic bearings are superior in terms of performance to contact based bearings, but non-usable in applications with non-constant curvature counter surfaces. A solution to this would be the introduction of deformable hydrostatic bearings components to cope with these required deformations. To reduce the required deformation of a bearing pad,...
master thesis 2020
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Gandhi, M. (author)
The precision, speed, and stroke of mechatronic machines need continuous improvement. Compliant mechanisms are widely used in the precision machines, but they do not have larger strokes due to their limited deformation. In the present time, various applications also require high speed and more problems appear due to the dynamics of the compliant...
master thesis 2020
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Asijee, Tom (author)
Fuel cell electric vehicles can provide the possibility to meet CO<sub>2</sub> emission reduction targets, but these vehicles require cost effective energy storage solutions. The current most mature technology uses compressed hydrogen, stored in composite pressure vessels (CPVs) manufactured by filament winding. Structural optimization of CPVs...
master thesis 2020
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van Bokhorst, Jochem (author)
When hardening concrete is subjected to imposed deformations, stresses maydevelop. If at any point in time this stress exceeds the tensile strength ofthe material, the concrete will crack. Early-age cracking of concretestructures may lead to issues related to durability, serviceability and aesthetics.During hardening of...
master thesis 2020
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Yan, Xu (author)
Structures may be subjected to both mechanical loads and imposed deformation. On one hand, the mechanical loads include, for example, the self-weight of the construction work, the action from normal use by person, furniture and movable objects, vehicles, snow, wind, execution, etc. On the other hand, when the deformation of a structure is...
master thesis 2020
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Bruna, Marc (author)
Subsidence is affecting different parts of the Netherlands. The strongest subsidence is observed in the province of Groningen due to ongoing natural gas extraction. Subsidence is also observed at several locations in the province of South Holland, where the processes of peat oxidation, soil compaction and the withdrawal of groundwater are at the...
master thesis 2020
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Lăpădat, Alexandru Mihai (author)
Under urban sprawl the trend of new established complex structures has rapidly increased. In this context maintenance plays a major role and monitoring of such structures represents a first important step in combating disasters. Over the last years low-cost Global Navigation Satellite System (GNSS) equipment has faced rapid and important...
student report 2020
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Bemelmans, Mark (author)
We use ground and space geodetic data to study surface deformation and gravity change at Kīlauea volcano from January to September 2015. This period includes an episode of heightened activity in May 2015, which we refer to as ’the May 2015 event’. The data set consists of Global Navigation Satellite System (GNSS), tilt, visual and seismic time...
master thesis 2019
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Garrido de la Serna, Pablo (author)
In order to reduce the carbon foot-print of turbo-generators to global warming, a step-change in the design process is needed. Extensive CFD simulations coupled with optimization algorithms are required, resorting to novel techniques to capture the complex flow phenomena occurring in the passage. However, the computation of the optimization...
master thesis 2019
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Smouter, Chris (author)
High Temperature Aquifer Thermal Energy Storage (HT-ATES) is a technique for storing large amounts of residual heat in the subsurface. In this report, the thermal deformation resulting from the temperature change in the subsurface is investigated and the resulting risks for buildings are assessed. To do this a case study is done on the TU Delft...
bachelor thesis 2019
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Odijk, Maik (author)
This research focuses on the structural behaviour of an elastic supported reinforced concrete slab. Over the years, there is a tendency to realise industrial floors with large joint-spacings. The downside of a slab on grade with a large joint-spacing is that the risk of (uncontrolled) cracking due to a shrinkage load is higher, which often...
master thesis 2019
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van Willigen, Jan (author)
Hydrostatic bearings are well known for having low friction and low wear in combination with high loading capacity.Traditionally, the running surfaces for a hydrostatic bearing are plane, rigid and smooth, ensuring a parallel lubricating film in the full range of movement. In this paper, we consider a new type of compliant, hydrostatic bearing...
master thesis 2019
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Mathew, Maria (author)
This thesis studies a novel mesh deformation method based on radial basis functions to improve mesh quality in regions with small wall clearances. For fluid-structure interaction problems or imposed motion CFD problems, the usually fixed Eulerian fluid meshes have to undergo deformation to conform to the deforming structure. In such cases, it is...
master thesis 2019
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Heitzig, Dorian (author)
This study investigates the wing deformation of the flapping-wing micro air vehicle (MAV) DelFly II in various flight configurations. Experiments were carried out with the MAV tethered in a windtunnel test section. To determine the best suited measurement approach, a trade-off study was carried out which showed that a point tracking approach...
master thesis 2019
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Mulder, Luuk (author)
Irreversible damage induced by stress in brittle rock is accompanied by the formation of micro-cracks. The strain energy released during the fracturing process is released in the form of acoustic emission. This thesis applied the non-intrusive method of acoustic emission monitoring to assess the deformation process of brittle rock during...
master thesis 2019
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van der Zalm, Joost (author)
The goal of the research described in this thesis was to investigate the basis of dissipation dilution as well as make it comprehensible. In the written literature we could find that the kinetic energy of an oscillating beam is stored into two types of potential energy~\cite{Kippenberg, Kotthaus}. A dissipative bending component and a...
bachelor thesis 2019
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Tollenaar, Veronica (author)
Measurements of a tachymetric network in the geothermal area of Bjarnarflag in North-East Iceland are performed during four consecutive years (2015-2018). For the yearly adjustment of the measurements an alternative iteration scheme to Baarda’s ’B-method of testing’ is proposed, because the level of significance of the F-test performed in the...
student report 2019
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van der Linde, Luuk (author)
The superyacht industry faces an increasing trend of larger dimensions, more open spaces, larger hull openings and more exotic shapes. This puts more effort on the structural design and especially for superyacht longitudinal stiffness is important, since the luxurious interior and delicate systems installed in a superyachts are not allowed to...
master thesis 2019
Searched for: subject:"deformation"
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