Searched for: subject%3A%22actuator%22
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Karbache, Abdelkader (author)
Diamagnetism can be used for energy-less levitation, while allowing for friction-free movement of objects in vacuum conditions. A very suitable material can be found in Highly Oriented Pyrolytic Graphite(HOPG), which not only has relatively high diamagnetic properties, but also electrical properties which allow for contactless actuation through...
master thesis 2024
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den Daas, Michiel (author)
Path generation mechanisms are those mechanisms that produce a predetermined path. Such mechanisms are prevalent in daily life, and many devices depend on path generation mechanisms or are derived from path generation mechanisms. One might think of examples such as vehicle suspension, film advance mechanisms or sewing machines. These are...
master thesis 2024
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van der Heijden, Joost (author)
The loss of an upper limb significantly impacts an individual's life, directly affecting their ability to perform activities of daily living. Prosthetic devices play a crucial role in aiding amputees' rehabilitation in society, primarily driven by advancements in externally powered prostheses. Although prosthetic devices on the market offer...
master thesis 2024
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van Peijpe, Casper (author)
This report presents a hybrid model- and data-based method for detecting and isolating faults in the ink channel of a printer using the self-sensing capability of piezo actuators. Grey-box system identification is used to identify the parameters of the model of the ink channel. The model is used to construct the fault detection (FD) filter. The...
master thesis 2024
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Neele, Maurits (author)
High-precision mechatronic equipment often benefits from or even needs vibration isolation to function within specification. Examples of such equipment include metrology devices, space instrumentation and lithography assemblies. Vibration isolation is often the function of the mounting between the equipment and the floor or rest of the machine....
master thesis 2024
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Hompes, Jouke (author)
Flexible robotics offers promising solutions for navigating complex environments, and this study contributes to its advancement through innovative methodologies optimizing both flexible robotic arm kinematics and a novel flexible actuator. The first methodology focuses on optimizing kinematics using quadratic programming, enabling the...
master thesis 2024
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Menger, Dehlia (author)
Soft robots, characterised by compliant mechanisms (CMs) made from low-stiffness materials, offer improved adaptability compared to traditional, rigid robots. These CMs are often actuated by pressure loads. Moreover, soft robots provide new possibilities in the area of robotics. They can be used in search and rescue and interact safely in...
master thesis 2024
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Kockelkoren, Michiel (author)
In recent years, the deployment of ground-based mobile robots has gained more and more interest in various domains. In contrast to other types of mobile robots, legged robots can traverse irregular terrains, climb stairs, and step over obstacles. However, these unique properties intensify the energy demand and require highly advanced perception...
master thesis 2024
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Baaij, Thomas (author)
This thesis report contains two papers. The first paper is a literature study on mechanisms, smart actuated materials and controllable joints. In this paper, several smart materials are identified and it is discussed how they can be embedded in different mechanisms. From this paper, it is concluded that fast-response smart material twisting...
master thesis 2024
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Sekar, S.A. (author), Hunt, A. (author)
Additive manufacturing of sensors and actuators together with structural materials and electronics will make it possible to fabricate innovative system designs that are overly laborious to realise with conventional methods. While printing of the structural materials and electronics are advancing fast, the additive manufacturing methods for...
journal article 2024
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IJssel de Schepper, S.R. (author), Hunt, A. (author)
The additive manufacturing of electroactive polymer (EAP) devices poses significant challenges due to their distinct structure and dissimilar properties of their constituent materials. It requires deposition of multiple functional materials with different properties, achieving μm-scale resolution in layer thickness, and executing incremental...
journal article 2024
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Liu, Q. (author), Ghodrat, S. (author), Jansen, K.M.B. (author)
Conventional hinge actuators often face limitations including excessive weight, large size and unpleasant noise. Shape memory alloys (SMAs) offer a solution to address these issues due to their favorable characteristics, such as lightweight, high actuation force and small form factor. However, most existing SMA-based hinge actuators rely on...
journal article 2024
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Zillen, Eva (author), van der Windt, B. (author), Vallery, H. (author), Smit, G. (author)
Background: Pneumatic actuators are widely used in applications like (medical) robots, or prostheses. Pneumatic actuators require a complex manufacturing process and are produced in standardized dimensions to reduce costs. Over the last decade 3D-printing has emerged as a cost-effective and efficient production method in medical applications....
journal article 2024
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Hoekwater, William B. (author), Ronaes, E.P. (author), Hassan HosseinNia, S. (author)
Recent studies have shown that tunable magnets (soft permanent magnets) can significantly reduce Joule heating in electromagnetic actuators. To achieve high motion accuracy and repeatability, this article proposes a novel actuator design with a linearized force-flux relation. In prior designs of variable reluctance tunable magnet actuators,...
journal article 2024
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Muscari, C. (author), Schito, Paolo (author), Viré, A.C. (author), Zasso, Alberto (author), van Wingerden, J.W. (author)
Actuator line modeling of wind turbines requires the definition of a free-stream velocity in a computational mesh and a regularization kernel to project the computed body forces onto the domain. Both choices strongly influence the results. In this work, a novel velocity sampling method—the so-called effective velocity model (EVM)—is...
journal article 2024
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Segovia Castillo, P. (author), Puig, Vicenc (author), Duviella, Eric (author)
This article presents the design of a control strategy for the Calais canal, a navigation canal located in a lowland area in northern France that is affected by tides. Moreover, the available actuators are discrete-valued and the hierarchy of operational objectives is time-varying. All these circumstances render water level regulation of the...
journal article 2024
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Pan, J. (author), Ferreira, Carlos (author), van Zuijlen, A.H. (author)
To investigate the effect of force distributions of each turbine component on the power performance of the Darrieus–Savonius combined vertical axis wind turbine (hybrid VAWT), the hybrid VAWT is modeled as idealized turbine under various force distributions. The goal of idealization is to simplify the intricate interactions between the...
journal article 2024
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Stella, F. (author), Della Santina, C. (author), Hughes, Josie (author)
The control possibilities for soft robots have long been hindered by the need for reliable methods to estimate their configuration. Inertial measurement units (IMUs) can solve this challenge, but they are affected by well-known drift issues. This letter proposes a method to eliminate this limitation by leveraging the Piecewise Constant...
journal article 2024
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Gallucci, G. (author), Jaarsma, Victor (author), Hunt, A. (author)
High strains of the relaxor ferroelectric polymers allows to build efficient actuators. While the mechanical impedance of such actuators can be optimized via their morphology, their practical realization requires flexible and versatile fabrication processes. This work devises an efficient procedure for manufacturing unimorph bending actuators...
conference paper 2024
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Alimohammadi, H. (author), Vassiljeva, K. (author), Hassan HosseinNia, S. (author), Petlenkov, E. (author)
This paper proposes an effective approach to en-hance bandgap depth in metastructures with high damping ratios, utilizing piezoelectric actuators coupled with notch filters for improved vibration isolation. The active control strategy focuses on dynamically attenuating specific resonant frequencies through the application of notch filters...
conference paper 2024
Searched for: subject%3A%22actuator%22
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