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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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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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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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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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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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Mătieş, Georgiana (author)The rudder is one of the few aircraft primary composite structures that experience relatively low external aerodynamic loading during regular flight conditions. This renders the rudder shell the perfect candidate to study the possibility of introducing sustainable materials with lower mechanical properties in primary structures. However, high...master thesis 2023
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- Nieuwenhuis, Jelte (author) master thesis 2023
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- Niessink, Yorick (author) master thesis 2023
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Hao, Bochen (author)In the semiconductor industry, the demand for a continuously higher throughput puts tough requirements on the force capacity and accuracy of actuators. Reluctance actuators, as a promising alternative to the present state-of-the-art Lorentz actuators, are capable of achieving much higher force densities. On the other hand, reluctance actuators...master thesis 2023
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Smits, Rudi (author)Single photon detectors are an important optical sensing tool in many industries. However, these highly efficient detectors suffer from variations in the size of an optical cavity when cooling down to 3K. An active positioning system is therefore required to correct the relative position of the fibre to the detector, so an optimal and...master thesis 2023
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Patel, Ansh (author)Wind turbine wakes have been a topic of intense research since the maturation of wind energy. This is justified given the complexity of the physics involved and their crucial impact on the operation of a wind turbine. Only recently though, the advancement in computational resources and the development of models like the Actuator Line Method (ALM...master thesis 2023