Searched for: department:"Precision%5C+and%5C+Microsystems%5C+Engineering"
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Timmerman, R.R. (author)
Most conventional actuation methods have a very limited degree of freedom, simply moving from point A to B. In contrast to the concept of distributed actuation which divides up actuation in such a way that a networked structure of smaller actuators operating in tandem is able to take on various forms. Previous research by other groups has...
master thesis 2017
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van Manen, T. (author)
Materials and devices with advanced functionalities often need to include functionalities such as surface features into complex 3D geometries. Precisely controlled bio-nanopatterns, printed electric components and sensors/actuators are all examples of such surface features. However, the vast majority of the refined technologies that are...
master thesis 2017
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Luo, T. (author)
master thesis 2017
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Chang, C.T. (author)
Wearable technologies are receiving a growing attention from research and industry in many different scientific areas [1]. Many of the commercialized devices are mainly based on the detection of gravitational, electric or acoustic impulse and environmental sensors [2]. However, for various healthcare applications it is of vital importance to be...
master thesis 2017
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Joziasse, B.L. (author)
master thesis 2017
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Scholten, T.C. (author)
Topology optimization is widely used within the academic environment. It is however not yet a standard design tool within the commercial industry. My research aims to shorten this gap by applying a topology optimization for an industrial design load. The design load is from a Printed Circuit Assembly (PCA) that requires active cooling in order...
master thesis 2017
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Fellinger, B.J. (author)
The repeatability of precision positioning systems can be improved by reducing the effects of stick-slip in the system. Stick-slip effects introduce a spontaneous jerking motion when overcoming the static friction coefficient, creating accelerations that are hard to predict. Contactless bearing types, such as magnetic levitation or fluid...
master thesis 2017
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Kortleve, J.P. (author)
From the results it can be concluded that a fixed and a free voice-coil actuated impact drive mechanism can be used as a positioning system in a precision environment, such as the semiconductor industry and extreme large telescopes, to position an object within 1 nanometer and hold the position passively stable within 10nm/hr. The empirically...
master thesis 2017
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Van Moorsel, L. (author)
master thesis 2017
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Overwijk, T.T. (author)
Static balancing is a technique to create static equilibrium in a mechanism for any configuration. Auxiliary links and many springs are usually added to achieve static balance for spatial parallel mechanisms. This increases inertia and complexity of the system. This paper first presents a theoretically perfect static balancing solution for a...
master thesis 2017
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van Boven, M.M.A. (author)
Currently the production process of acoustic guitar factories does not result in instruments with equal dynamical behaviour, due to the varying material properties of wood from tree to tree. Experienced individual guitar builders are able to handle those material variations, but this is a labour intensive process because there is no structured...
master thesis 2017
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Smorenberg, P.G.J. (author)
Optical systems in high precision equipment become increasingly more complex due to the raising number of optical mounts used for mounting and positioning of optical components. Additional, the installation of electronics and inert gas purging systems to protect the optics against the abrasive optical beam extends the amount of components in the...
master thesis 2017
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Klaassen, S.W.B. (author)
master thesis 2017
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Stolk, M. (author)
Since its introduction, Topology Optimization (TO) has been applied to a broad range of design cases. TO is a material distribution method which finds the optimal material lay-out for a given design space while upholding given constraints and boundary conditions. This has made the method popular in structural mechanics where it is used to find...
master thesis 2017
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Hulsebos, M. (author)
With electron beam lithography, a cutting edge technology has been developed that might introduce new possibilities in the design of chips. The word "might" has been used here because e-beam lithography is not yet available for the mass production market. One of the bottlenecks in the development of e-beam lithography is the positioning...
master thesis 2017
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Wernsen, M.W.F. (author)
master thesis 2017
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Nijssen, J.P.A. (author)
master thesis 2017
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Wezenbeek, S. (author)
During a rocket launch a spacecraft is, among other loads, exposed to a potentially damaging acoustic load. Prior to space flight, ground tests are performed to determinewhether a spacecraft, or a specific part thereof, can withstand the acoustic load. These tests take place in a reverberation chamber. An acoustic feedback control algorithm...
master thesis 2016
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Marinangeli, L. (author)
In the past decades research on Active Vibration Control (AVC) has found increasing interest in control of flexible thin-walled structures, mainly made of new advanced materials such as composite carbon fibre. These types of composite structures combine high stiffness with good flexibility in achieving complex shapes, and are mostly used in...
master thesis 2016
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Greeuw, R. (author)
master thesis 2016
Searched for: department:"Precision%5C+and%5C+Microsystems%5C+Engineering"
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