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Mian, Osama (author)Vibrations have been studied in various engineering fields due to their detrimental and even destructive effects on structures. Suppressing low-frequency vibrations has been a research challenge for decades and is mostly achieved by implementing active vibration control techniques. In the last two decades, the emergence of locally resonant...master thesis 2023
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Miltenburg, Hero (author)This paper presents a validation of a parametric compliance matrix of a circularly curved leaf flexure (CCLF), which has been obtained using the direct method. This is done for three case studies. In case study one, the compliance matrix of a single flexure is evaluated. The results are compared with the results from a finite element analysis...master thesis 2023
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LEE, Tzu (author)This study proposes a novel design of monolithic compliant variable torsional stiffness (VTS) mechanism whose stiffness can be tuned continuously. This mechanism is then used to create a compliant variable stiffness (VS) ball joint. This compliant VS ball joint can be beneficial in various applications such as exoskeletons, prostheses, and bio...master thesis 2023
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Venkata Shanmukha Sreeramagiri, Souri (author)Energy dissipation plays a crucial role in mitigating noise and vibration in a wide range of applications. In the field of assistive devices, energy dissipation is used to improve the stability of joint motion and protect the musculoskeletal system from excessive loads. It is not surprising that considerable effort has gone into developing...master thesis 2023
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Amoozandeh, A. (author)Industrial passive exoskeletons have been developed for years as a tool to reduce the physical workload of their users. They accomplish this by compensating for the user’s body weight and decreasing fatigue caused by repetitive loads. Despite their advantages, current exoskeletons have drawbacks that make them less convenient for users and thus...doctoral thesis 2023
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Lemmens, Cas (author)<br/>This thesis report presents research on small walking robots. The report begins with an introduction that explains the project’s origin, outlines the project’s goal, and provides an overview of the report’s contents. Following the introduction, a literature study is conducted to investigate the current state-of- the-art steering mechanisms...master thesis 2023
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Horstman, Bart (author)This study introduces a new design for the drivetrain of a robotic ball. An application for the robotic ball is a rehabilitation device for young children. With these children, movement can be stimulated in a more intuitive way when a robotic ball is used compared to other training programs. Since the ball will be kicked and played with, an...master thesis 2023
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van den Berg, Yannick (author)Compliant mechanisms are often used in precision mechanism design as a suspension for translational stages. Their light weight makes them efficient and they do not suffer from friction or backlash. They transmit and transform a finite motion along their degrees of freedom via elastic deformation and provide high stiffness along their degrees of...master thesis 2023
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Iedema, Menno (author)High-tech machines are being improved by extend- ing product quality inspections through implementing better sensors. The resolution of an integrated optical sensor can be optimized through mechanical amplification. In this work mechanical sensitivity enhancement of a Fiber Bragg Grating based sensor is realized, through optimizing output...master thesis 2023
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Koentges, Saralina (author)This work aims to achieve a softening moment-angle response by utilizing compliant parts. The approach uses the principle of contact release, which involves initially prestressed torsional bars arranged in series, separated by rigid bodies. By stepwise activation of the torsional bars, a softening behavior is achieved. Mechanical stops are...master thesis 2023
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Wielaard, Bram (author)This thesis describes the process of designing a visual effect to replace the needle indicator of a rattrapante complication. The mechanisms of the chronograph and rattrapante are explained as well as the importance of aesthetics in the luxury watchmaking industry. After establishing a method to determine a feasible design, the criteria that...master thesis 2023
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Ding, Haolang (author)Mode coupling has extensive use in the MEMS field, including frequency division, vibration direction conversion, and energy transfer. In practice, these applications can be used to improve the performance of various devices such as sensors and energy harvesters. Nonlinear spring also has a wide application in MEMS field. Various nonlinear spring...master thesis 2023
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de Jong, Martin (author)In the field of mechanical metamaterials, unconventional physical properties are realized by changing the geometric structure of a unit cell. A metamaterial is composed of numerous unit cells. Researchers have taken it a step further by making a reprogrammable unit cell. A reprogrammable metamaterial has additional elements or mechanisms in the...master thesis 2023
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Pels, Jasper (author)The bending stiffness of a structure is highly dependent on its shape, and this relation can be utilized to allow for a structure to morph into different shapes during deformation. This paper focuses on shape-morphing into multiple shapes (Multi Shape-Morphing), and presents a design method for a parametric<br/>structure consisting of beams,...master thesis 2023
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Formidabile, Martina (author)TOP contoured nozzles, with large area-ratios, are commonly employed in rocket propulsion systems as they feature an excellent thrust-to-weight ratio. A significant shortcoming to this design is that, during the startup and shutdown transients of a LRE, the internal nozzle flow progresses through a series of overexpanded flow states - Free Shock...master thesis 2023
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van den Oever, Sam (author)A growing energy demand has sparked interest into harvesting energy from the human body. Often, a rotational proof mass is used to harness energy for a wearable from kinetic motion of its user. The addition of a spring has the potential to significantly increase efficiency for these low-power rotational energy harvesters. In this research a...master thesis 2023
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Colin, Flip (author)Flexure mechanisms are widely utilized in precision mechanisms, but their practical use is limited by three major factors, namely restricted range of motion, parasitic motion, and significant reduction in support stiffness when deflected. To address this limitation, in this research the potential of variable thickness flexures in minimizing the...master thesis 2023
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Moens, Tieme (author)Flying drones have been a well-established field of engineering for many years now. With the wave of bio-inspired design came the idea of flapping wing micro air vehicles (FWMAVs). These drones use flapping wings instead of fixed or rotary wings to generate their lift, giving them the potential for agile movement and application in confined...master thesis 2023
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Villalba, Víctor (author)Imagery collected from space provides very useful information about our planet. Today there are many Earth Observation satellites in orbit which allow us to collect information which is used for environmental monitoring, response to catastrophes, surveillance and security, urban planning, economic analysis and many other applications. Thus,...doctoral thesis 2023
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Samuels, Luuk (author)The use of elastic frequency multipliers presents the ideal platform to address the coupling between the footprint and range of motion of elastic mechanisms. By transmitting unidirectional into reciprocating motion they efficiently increase the range of motion without a huge compromise in size. In this thesis, an elastic<br/>frequency doubler...master thesis 2023