Searched for: subject%3A%22Pneumatics%22
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Burghoorn, Rick (author)
Air bearings are a vital component to high tech machines and have been in widespread use since the 1960s. They provide near frictionless motion, have high stiffness and a near infinite lifetime. When looking at existing literature the influence of the porosity on the dynamic characteristics has not been researched in depth. Especially when...
master thesis 2023
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van Leeuwen, Clint (author)
The focus of this project was the research and development of an affective social touch wearable. AffectiveAir uses pneumatic actuation on the shoulder to convey a library of haptic sensations. The goal was to overcome physical limitations in potential digital communication contexts, by a non-verbal, tactile, and possibly intimate social touch...
master thesis 2023
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Hoppener, Bruce (author)
Focal laser ablation is a new, promising method to treat tumors. The current focal laser ablation approach is to insert an optical fiber into the patient using rigid needles. A side effect of this approach is that during the needle insertion, tissue damage occurs. The larger the diameter of the needle, the more tissue damage. If the diameter of...
master thesis 2023
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van der Windt, Bob (author)
Fluid-controlled actuators are widely used in lower limb prostheses. Most fluid-controlled actuators have valves integrated into the cylinder systems and require complex manufacturing steps, making these systems expensive. A cost-effective production method for these complex actuator valve systems is 3D-printing. The goal of this research is to...
master thesis 2022
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Zoumhani, Oualid (author)
master thesis 2022
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de Vries, Jelle (author)
Mobile soft robots show great potential for exploration of unknown and hard to navigate environments. Sadly, most of these robots are currently being held back by their power sources and control systems. These components, which are usually quite heavy and bulky, need to be integrated before mobile soft robots can cut their tethers and explore...
master thesis 2021
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Zillen, Eva (author)
<b>Background</b> Pneumatic actuators are widely used in applications like (medical) robots, or prosthetics. They require tight tolerances to keep them leakage-free. Over the last decade 3D-printing, or additive manufacturing, has emerged as a cost-effective production method in these applications.<br/><b>Objective</b> The goal of this research...
master thesis 2021
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Yikilmaz, Semih (author)
Developments in minimally invasive surgery such as natural orifice transluminal endoscopic surgery and single port laparoscopic surgery have pushed medical devices to be higher articulated and more dexterous. These surgery methods have proven to greatly decrease bleeding, scar tissue, hospital time, and cost. The procedures involve the...
master thesis 2021
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Mastenbroek, Merel (author)
Background Upper limb prostheses help people with an upper limb deficiency in performing activities of daily living. They can be divided into two categories; body-powered and externally powered prostheses. The advantage of body-powered prostheses is that they provide feedback to the user. The advantage of externally powered prostheses is the low...
master thesis 2021
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Amory, Tijmen (author)
Cephalopods (e.g. squids, octopuses, cuttlefish) are able to actively adapt their appearance in terms of color, texture or transparency. The goal of this project is to mimic this ability with a simple and mechanical solution and apply this technology to a product or environment. This resulted in a pneumatic mechanism which folds open after...
master thesis 2021
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Boogaard, Lars (author)
Lower limb exoskeletons enable paraplegic patients to stand-up and walk again. However, the weight and overall functional performance of the exoskeleton prevents them from being widely used. To reduce the weight and increase<br/>the performance, pneumatic actuators can be used as an alternative to the commonly used electromechanical actuators....
master thesis 2021
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Kieft, J. (author)
Introduction: Almost 57 percent of above elbow amputees stop using their prosthesis. One of the main factors of non-wear is the high weight. Pneumatic actuation can be more lightweight than electronic actuation, and might therefore help with reducing the mass of a prosthesis and...
master thesis 2020
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Hoek, A.L. (author)
Hand prostheses commonly advertise on three main selling points: strength, speed and lightweight. Most conventional hand prostheses are only able to combine two of these three attributes. Therefore, combining all three attributes into a single device can result in a commercially attractive hand prosthesis. Another interesting point, particularly...
master thesis 2020
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Vervaet, joost (author)
A large proportion of upper extremity prostheses are abandoned by their users. <br/>Commonly, the main reasons for abandonment are related to comfort, control and cosmetics.<br/>Prostheses are often experienced as too heavy and have limited functionality. <br/>A pneumatic power source is able to provide a relatively high force using a small and...
master thesis 2020
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Romaniuk, Filip (author)
The master's thesis explores the possibilities of reusing abandoned post-industrial structures and objects of architectural heritage. Objects, which are usually difficult to renovate due to high costs and their poor physical condition, could be filled with new inflatable volumes and thus be filled with new space, function, and life. The work is...
master thesis 2020
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Das, Hemjyoti (author)
Pneumatic cylinders provide an environment-friendly actuation means by minimizing the leakage of any harmful industrial fluids, as occurs for hydraulic actuators. Thus, pneumatic actuators require less maintenance, compared to hydraulic actuators. Moreover, for a similar weight of hydraulic actuator, the cost of a pneumatic actuation system is...
master thesis 2020
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Bekooy, M.J. (author), van Hilten, A.J. (author), van der Kamp, N.B. (author), Kouwenhoven, R.M.H. (author), de Wolf, M.J. (author)
Working with pneumatics can be done using a Programmable Logic Controller (PLC), which commands the individual actuators. To start, the movements of each component are described in a displacement diagram. From this diagram, ladder logic can be extracted, which is a set of conditions with corresponding actions. These actions are executed when the...
bachelor thesis 2020
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van der Helm, Simon (author)
The Sit-to-Stand (SitTS) and Stand-to-Sit (StandTS) transitions are among the most demanding activities of daily living in terms of required muscle strength. Many elderly struggle with the transitions, which become even harder after a transfemoral amputation. The current state of the art in knee prostheses does not supply any support to reduce...
master thesis 2020
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Neevel, Stephan (author)
A future version of the DEMCON Needle Placement System (NPS) for use in the Magnetic Resonance Imaging (MRI) scanner requires accurate and small actuators that are MR (Magnetic Resonance) safe; actuators that can safely operate without interfering with the MR environment. The pneumatic stepper motor was chosen for actuation of the aiming...
master thesis 2019
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Baan, Maureen (author)
People with Duchenne muscular dystrophy (DMD) will suffer from a limited hand function. Therefore, a dynamic hand orthosis could be one of the solutions to improve their hand function and quality of life. However, at this moment, none of the obtainable hand orthoses fits their special needs. The goal of this research is to design a flat dynamic...
master thesis 2019
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