Searched for: subject%3A%22Levitation%22
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Chaudhry, Amna (author), Haouari, Rajae (author), Papazikou, Evita (author), Kumar Singh, Mohit (author), Sha, Hua (author), Tympakianaki, Athina (author), Nogues, Leyre (author), Quddus, Mohammed (author), Weijermars, Wendy (author), Thomas, Pete (author), Morris, Andrew (author)
Mobility and environmental benefits of Green Light Optimal Speed Advisory (GLOSA) systems have been reported by many previous research studies, however, there is insufficient knowledge on the safety implications of such an application. For safe deployment of GLOSA system, it is most critical to identify and address potential safety issues in...
journal article 2024
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Nieuwenhuis, Jelte (author)
master thesis 2023
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Weisz, Eli (author)
Diamagnetic levitation presents a promising platform for realizing resonant sensors and energy harvesters. The technique offers mechanical isolation from the environment while operating with zero power consumption. This unique feature ensures exceptional sensitivity and accuracy in numerous applications. However, the presence of eddy currents in...
master thesis 2023
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Mooiweer, Martijn (author)
Acoustic levitation is an novel method that could lend itself very useful to fast and precise transportation of small objects. To verify the acoustic field and the modelling assumptions, the acoustic field must be visualised and quantified. Different methods to visualise a pressure gradient are investigated and rated against design requirements....
master thesis 2023
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Fiuk, Aleksander (author)
Operating spacecraft in a perturbed environment of a binary asteroid system is a challenging task. In light of the near-future exploration of the 65803 Didymos system by the Hera probe and the lack of study of orbital evolution of naturally-levitated regolith particles in this system, a method is here proposed to identify regions of high risk of...
master thesis 2022
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Kouwenhoven, Timo (author)
A novel nonlinear stiffness unit cell aided magnetic gravity compensator is proposed for the purpose of isolating low-frequency vibrations. A negative stiffness magnet setup is combined with a compliant unit cell with tailored nonlinear force-displacement characteristics. This combination offers a large range of motion featuring low stiffness, a...
master thesis 2022
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Chen, X. (author), Ammu, S.K. (author), Masania, K. (author), Steeneken, P.G. (author), Alijani, F. (author)
Levitation offers extreme isolation of mechanical systems from their environment, while enabling unconstrained high-precision translation and rotation of objects. Diamagnetic levitation is one of the most attractive levitation schemes because it allows stable levitation at room temperature without the need for a continuous power supply....
journal article 2022
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de Lint, Tjebbe (author)
Over the past decades the diamagnetic effect has been used for a variety of applications. This ranges from levitating a living frog to stabilizing a force sensor, designing an acceleration sensor and determin­ing the power of a laser. Diamagnetic levitation is the only method in which a passive stable levitation of an object can be achieved....
master thesis 2021
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Huloux, Nicolas (author), Bernard, Corentin (author), Wiertlewski, M. (author)
Ultrasonic surface-haptic touchscreens produce compelling tactile sensations directly on the users' fingertips. The tactile sensations stem from the modulation of friction produced by acoustic radiation pressure, which reduces the contact between the skin and the glass plate. During this process, some of the vibrations are partly absorbed by...
journal article 2021
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Chen, X. (author), Kothari, Nimit (author), Keşkekler, A. (author), Steeneken, P.G. (author), Alijani, F. (author)
Diamagnetic levitation offers stable confinement of an object from its environment at zero power, and thus is a promising technique for developing next generation unclamped resonant sensors. In this work, we realize a resonant weighing scale using a graphite plate that is diamagnetically levitating over a checkerboard arrangement of permanent...
journal article 2021
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Li, H. (author), Pourquie, M.J.B.M. (author), Ooms, G. (author), Henkes, R.A.W.M. (author)
1D, 2D and 3D numerical simulations were carried out with the Reynolds-Averaged Navier-Stokes equations (RANS) for horizontal oil-water core-annular flow in which the oil core stays laminar while the water layer is turbulent. The turbulence is described with the Launder-Sharma low-Reynolds number k−ϵ model. The simulation results are compared...
journal article 2021
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Kothari, Nimit (author)
In the past few decades, there has been a growing demand for low-cost disposable sensors to be utilized in hazardous and toxic environments such as high temperature and chemically aggressive environments, which can lead to irreversible damage to the sensor. Moreover, by cost reduction, they become more attractive for utilization in developing...
master thesis 2019
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Keşkekler, Ata (author)
From the earliest days, the phenomenon of levitation has always aroused the curiosity of humankind due to its mysterious and unique nature. Levitation systems are particularly interesting because of their non-contact characteristic which provides the possibility to isolate the levitated object from environmental effects like mechanical friction...
master thesis 2018
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Gao, Mingyuan (author), Li, Yunwu (author), Lu, Jun (author), Wang, Yifeng (author), Wang, Ping (author), Wang, L. (author)
The goal of this study is to develop a vibration-based electromagnetic energy harvesting prototype that provides power to rail-side monitoring equipment and sensors by collecting wheel-rail vibration energy when the train travels. This technology helps power rail–side equipment in off-grid and remote areas. This article introduces the...
journal article 2018
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Zhu, L. (author), Guo, J. (author), Gill, E.K.A. (author)
In recent years, the increasing need in small satellite solutions triggers the miniaturization of attitude control systems. Reaction spheres were proposed as promising replacements of conventional reaction wheels for their 4π rotations. Since the generated control torques could be about any desired axes, a single reaction sphere is sufficient...
journal article 2018
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Weel, Stijn (author)
Magnetic levitation is a recent technology which nowadays is used in high-tech systems. It is developed due to the inherent benefits of these type of setups such as lack of wear, friction and problems due to mechanical phenomenon as play and backlash. Achieving higher accelerations and ultra-precise position control while reducing maintenance. ...
master thesis 2017
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Kalgreadis, A. (author)
Magnetic levitation actuation has proven to be a viable solution in many applications where high performance actuators are needed that can achieve fine manipulation and position control. Advantages of magnetic levitation include elimination of friction, backlash, vibrations and wear of components due to contact. Many such systems have been...
master thesis 2015
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De Stefano, L. (author)
The project is located on the border between Mexico and US and it addresses multiple scales, from the plan for an high speed Train line on the border, to the design of a shared train station between the cities of El paso and Juarez.
master thesis 2015
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Rohacs, D. (author), Voskuijl, M. (author), Siepenkotter, N. (author)
The goal of this paper is to simulate and measure on a small-scaled model the landing characteristics related to take-off and landing (TOL) operations supported by a magnetic levitation (MAGLEV) system as ground-based power supply. The technical feasibility and the potential benefits of using ground-based power to assist TOLs is also presented,...
conference paper 2014
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Woo, S.J. (author)
In general electric field forces have the distinctive property of being able to mediate forces to virtually any material in a fully non-invasive and contact-free fashion. Based on this property, electrostatic levitation holds great promise for the semiconductor, solar panel, and flat-panel display industry since the handling of (semi)conducting...
doctoral thesis 2012
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