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Creagh, Conor (author)
In recent years, researchers have proposed a variety of approaches to tackle the problem of orbital debris. Debris targets are diverse, and prior knowledge may be limited, with unknown uncooperative debris targets being the most challenging category. A crucial portion of any debris capture scenario is the observation phase during the approach....
master thesis 2024
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Bezsilla, Janos (author)
Nowadays, many space missions require highly accurate pointing for Earth observation or cosmic vision purposes. However, the vibration environment from a spacecraft's structure and reaction wheels can cause disturbances in its line-of-sight stability and severely impact image quality. Additionally, these effects are not known precisely due to...
master thesis 2023
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de Inza Niemeijer, Carlos (author)
The continued increase in the number of satellites in low Earth orbit has led to a growing threat of collisions between space objects. On-orbit servicing and active debris removal missions can alleviate this threat by extending the lifetime of active satellites and deorbiting inactive ones, but this requires advanced guidance and control...
master thesis 2023
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Rueda Oller, Guillem (author)
The Geosynchronous Large Debris Reorbiter concept is an active debris removal method proposed for defunct satellites in geostationary orbit. This method uses the electrostatic tractor (or tug), which is a spacecraft that controls a mutual electrostatic force on a target and uses this force to slowly accelerate the target towards or away from the...
master thesis 2023
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Paliušis, Kipras (author)
Laser communication provides numerous benefits over typical Radio Frequency communication, such as lower power, not occupying regulated frequency bands, possibilities for much higher data rates and resistance to jamming. Combined with satellite constellations, Laser Inter-satellite Links (LISL) can enable global connectivity. However, satellites...
master thesis 2023
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Stolk, Toon Stolk (author)
There is no denying that the ever-increasing demand in space endeavours calls for more sustainable exploitation of the space environment. Approaches to mitigate space debris, such as ADR, are frequently suggested. Most of these proposals suggest a single sensor approach to provide accurate and continuous shape and pose estimation of the target....
master thesis 2022
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van der Wielen, Nathan (author)
At the Technical University of Delft(TU Delft), a Kirigami inspired method of spirally deploying a coiled up band into a parabolic reflector is being studied for its use in space.<br/>This thesis performs a thermo-elastic analysis on the spiral dish Antenna (SDA) using a combination of ESATAN-TMS, Abaqus, and python scripting. After analysing a...
master thesis 2022
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Hutan, Andrei (author)
Traditional spacecraft design has reached the limits of size and volume that current launchers allow. This is especially true for space telescopes (James Webb), where size is directly correlated with performance. A solution to this is on-orbit assembly, however some enabling technologies are insufficiently developed. One of the most important...
master thesis 2022
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Narayanan, Ashvij (author)
To enable greater access to space, this study aims to develop a cost-effective PocketQube Deployment System capable of deploying multiple PocketQubes from various launch vehicles. Mission cost, of which launch cost is a significant driver, can be reduced by minimizing deployment system mass. This can be achieved by structural analyses of single...
master thesis 2022
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Kadungamparambil John, Rohit (author)
This project aimed to develop and verify a numerical model of a brush. This model is meant to aid the study and design of brushes in Active Space Debris Capture. The model is based on the Discrete Element Method and uses the YADE software package to construct the brush model. This model simulates the dynamics of a bristle, their collisions among...
master thesis 2022
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Ryan, Conor (author)
Spacecraft are under constant threat from hypervelocity impacts by micrometeoroids and space debris. Due to their large surface area and hence increased probability of being impacted by debris, solar arrays are of particular concern. For larger, trackable debris objects, collision avoidance manoeuvres can be performed so as the minimise the...
master thesis 2022
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Mingione, Fabio (author)
Reaction wheels are often the main contributor to microvibrations on satellites. These vibrations are a source of pointing errors and therefore need to be limited as much as possible. The miniaturization trend in the space industry and universities fostered the production of very small reaction wheels, suited to Cubesat and PocketQube scales. A...
master thesis 2022
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Vermeulen, Arjan (author)
For several decades, humanity has worked on cataloguing the population of near-Earth asteroids (NEA's). Knowledge of these small members of the Solar system not only helps in defending Earth from asteroid impacts; study of the population might also provide valuable scientific insights, and open economic possibilities through developments such as...
master thesis 2022
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Kevers, Bart (author)
The current commercialisation of spaceflight significantly boosts the amount of objects in space, resulting in an increasing risk of involuntary collisions between space debris and operational spacecraft. Collisions are catastrophic for the orbital environment, as they create thousands of pieces of debris flying around that will put other...
master thesis 2021
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Spaander, Joshua (author)
Contemporary optical communication terminals are capable of higher data rates, over longer distances for less power compared to traditional radio communication terminals. As of writing, these terminals are almost exclusively single beam compatible. This thesis describes dedicated multi-beam terminal with COTS components. The design study used a...
master thesis 2021
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de Almeida Fancaria, Maria (author)
Since the introduction of Hydrazine to the list of substances of very high concern, REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals), there has been an increase in the investigation of “green” propellant alternatives. At the DLR Institute of Space Propulsion, a mixture of Nitrous Oxide<br/>and Hydrocarbons (Ethylene...
master thesis 2021
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Bharteeya, Siddharth (author)
The launch vehicle industry is undergoing a major shift as new commercial organizations are staking claim to large market shares with bold technologies. To stay competitive in this new era, launch vehicle companies must develop new technologies to reduce launch costs while serving the growing demand for space accessibility. A possible solution...
master thesis 2021
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van Lierop, Casper (author)
The goal was to provide a solution to the thermal problem of high-performing CubeSats. These CubeSat generate much heat due to a combination of increased power generation capabilities and miniaturisation. A deployable radiator is designed to solve this problem using HiPeR technology developed by Airbus Defence and Space Netherlands. This design...
master thesis 2021
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Henkel, Martin (author)
Certain Formation Flying missions rely on their orbital control thrusters to maintain the formation, making a Fault Detection and Isolation (FDI) system that is capable of detecting thruster faults very valuable. In addition, communication between satellites in a formation can be expensive. In this thesis, a distributed FDI approach was...
master thesis 2020
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Krijnen, Bas (author)
The growing need for CubeSats could present strong demands for the use of automated systems during the early stage of the design cycle. Automated design tools that are able to incorporate the entire design space offered by the commercial-off-the-shelf (COTS) components for CubeSats may potentially improve the design of a CubeSat, compared to...
master thesis 2020
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