Searched for: subject:"Compliant"
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Daan, Boris (author)
For steel flexures, complex geometries are required to reach high support stiffness and limit axis drift over large ranges of motion. These complex flexures are expensive and difficult to manufacture. This paper presents a method of designing short, polymer wire flexures with high support stiffness and modelling their axis drift using a novel...
master thesis 2020
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Valentijn, Maurice (author)
The objective of this thesis is to show that warping can be used in a thin-walled beam to create a suitable replacement for a classical differential mechanism. This normally negated deformation of the cross section can be used to create an inverse transmission mechanism, used to create a monolithic and simple alternative to a classic...
master thesis 2020
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Kok, Sjaak (author)
Elastic neutral stability involves elastic deformation without stiffness or loads. It is a remarkable appearance, since the deformation of materials is normally associated with an increase of potential energy and a resulting opposing reaction force or moment. Neutrally stable mechanisms can be used to overcome unnecessary actuation which makes...
master thesis 2020
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Hester, T. (author)
This thesis contains the design process of a compliant shape adaptive chicory gripper for robotic sorting processes. The robotic sorting line consists of an input and output conveyor-belt. The input line contains unsorted chicories which are scanned by a robotic vision system. Overhead FlexPicker robots, equipped with chicory grippers, sort the...
master thesis 2020
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Joosten, S.T. (author)
Inspired by phenomena in the plant world, a<br/>meteoro-sensitive rotational actuator is developed. The design<br/>uses a hygro-active shell, whose water-based swelling is restricted<br/>at selective locations to form a helicoid structure. The influence<br/>of geometrical parameters on the performance is investigated<br/>using a numerical...
master thesis 2020
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Ras, Meindert (author)
The Atalanta is a palm-sized, insect-inspired, flapping-wing micro air vehicle developed by the University of Technology Delft. In its current form, the Atalanta has a lift-to-mass ratio of 0.12 which inhibits it from taking off. Getting the Atalanta to fly would greatly benefit the research into areas such as aerodynamic modelling, on-board...
master thesis 2020
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Soek, Thomas (author)
2D flexure elements fulfil a pivotal role in the field of precision positioning systems as they do not suffer from backlash, friction or play and exhibit highly repeatable behaviour. However, planar building blocks are characterized by a limited design space as the majority of the flexure elements are flat and straight. In this thesis, it is...
master thesis 2020
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Chatzimanolis, Manolis (author)
The advent of miniaturized satellites has sparked an interest in effective methods of exploiting their capabilities. Potential has been found in propulsionĀ­enabled units, and TU Delft is at the forefront of researching and developing suitable propulsion modules for thrust generation or attitude control of small satellites classified as Cubesats...
master thesis 2020
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Verzendaal, Jan Maarten (author)
This thesis studies the possibility of energy increase in tape-spring assemblies through stacking, defined as the practice of placing tape-springs on top of each other in parallel. consists of five chapters. Chapter 2 consists of a paper that presents a theoretical approach to stacking of tape-springs, and studies the potential of energy storage...
master thesis 2020
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Nobel, Max (author)
Prostate cancer is the most common cancer in men and third in terms of mortality. High dose rate brachytherapy is a common and effective treatment to treat this cancer. High dose rate brachytherapy requires the implantation of several needles into the prostate trough which a radiation source is introduced. This implantation can present a number...
master thesis 2020
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Gomes, Robin (author)
Compliant mechanisms consist of a monolithic body and obtain motion through elastic deformation. Multiple compliant flexure designs are known but their range of motion and load capacity are often limited. When considering rotational hinges, improving the operational range requires reducing the rotation stiffness while increasing normal stiffness...
master thesis 2020
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Huisjes, Ad (author)
Current multi-DoF compliant manipulators are still rarely implemented in the industry because their range of motion (ROM) is limited as their designs are heavy and bulky or obtained by a serial set of multiple stacked flexure systems, which limits their compactness. The goal of this article is to overcome these limitations by considering them as...
master thesis 2020
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Joosten, S.T. (author)
The mechanisms that move plants can serve as biological role models for engineers, designers and architects. This practice is slowly being implemented in various engineering fields, with architects often being pioneers. Various methodologies have been written about the subject, but often only from an architectural point of view.<br/>The...
student report 2020
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Siers, Sebas (author)
A LED induced fluorescent technique based test setup is introduced , which is used to measure the water film thickness of compliant hydrostatic bearings. Fluorescent particles have the characteristic of absorbing light of a certain wavelength and emitting light of a higher wavelength. A LED with a wavelength of 540 nm (green light) is used to...
master thesis 2020
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Klok, Jan-Willem (author)
Laparoscopic or minimally invasive surgery (MIS) has seen a lot of development. For the patient, laparoscopic surgery has many beneļ¬ts. However, for surgeons this is not the case. For example, laparoscopic grasper design exhibit play and hysteresis during surgical tasks such as grasping and palpating. This impedes haptic feedback, resulting in...
master thesis 2019
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van Willigen, Jan (author)
Hydrostatic bearings are well known for having low friction and low wear in combination with high loading capacity.Traditionally, the running surfaces for a hydrostatic bearing are plane, rigid and smooth, ensuring a parallel lubricating film in the full range of movement. In this paper, we consider a new type of compliant, hydrostatic bearing...
master thesis 2019
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Schonebaum, Johan (author)
Running robots at insect scale are an upcoming research field, because of their numerous potential applications like exploration of hazardous environments such as collapsed buildings, natural disaster sites and debris. To date no report exists on such a robot that either exploits its resonance, or that is monolithic. These properties, however,...
master thesis 2019
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Juwita, Adinda Bunga (author)
Multi-material compliant mechanisms have shown the potential to be utilized in the upper-limb prosthesis. The mechanisms consist of flexural and rigid parts, where the flexural components can serve as flexible joints between rigid bodies in the device (e.g., finger and finger segments). This configuration is feasible to be fabricated using a...
master thesis 2019
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van der Geer, Cees (author)
This report presents the design of a 2-DOF compliant mechanism, capable of describing a closed spatial surface. The mechanism is designed with the intended application as leg in an omnidirectional walking machine. Therefore, a conceptual design of a way of coupling a multitude of these mechanisms is also presented. By means of a kinematic...
master thesis 2019
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Broshuis, Ab (author)
Present stroke rehabilitation devices for the arm are often difficult to use by the patient himself and cannot be used at home. A compliant shell mechanism could overcome the shortcomings of the current available devices. By the use of monolithic shell mechanisms a simple to use device can be designed, which can be made wearable. It would make...
master thesis 2019
Searched for: subject:"Compliant"
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