Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 16 of 16 for “"lightweight design"”.
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Application of stiffness geometries in the lightweight design and optimization of automotive monolithic deep-drawn hard-shell rooftops
… activities such as camping and overlanding. The designs that are currently available in the market rely on multi-part (polylithic) structures that are manufactured separately and joined using mechanical fasteners (bolts, nuts, rivets), adhesives, or welding. This leads to design, manufacturing …
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Novel Topology for Capacitively Isolated Switched Capacitor Converter
… the Dickson converter framework, the proposed design seeks to leverage the inherent advantages of switched-capacitor converters—such as compactness, lightweight design, and higher efficiency at low to moderate power levels—over traditional magnetic converters. Additionally, the incorporation of …
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Design of a Robotic Arm Manipulator Camera Unit for Mini Underwater Remotely Operated Vehicles
… not because no camera tool has been specifically designed to support the low-cost, lightweight design of a mini ROV. This thesis discusses the design considerations, component selection, and system prototype (including the use of image processing to improve the underwater image for the operatorʼs …
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The Application of Series Elastic Actuators in the Hydraulic Ankle-Foot Orthosis
… have been trending toward more powerful and lightweight devices. A type of wearable device that fits into this trend is the Ankle-Foot Orthosis (AFO), which is a device that restrains or strengthens the movement of an ankle to assist the user during gait. A powered AFO uses an actuator and …
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Design of High-Performance, Dual-Motor Liquid-Cooled, Linear Series Elastic Actuators for a Self-Balancing Exoskeleton
… ratios, while maintaining a small lightweight design. These analyses and trade studies have resulted in the design of a dual-motor liquid-cooled actuator capable of producing a peak force 8500N with a maximum travel speed of 0.267m/s, and three different single-motor actuators …
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Lightweight plywood construction assembly : a lightweight approach to the elegant utilitarian form
… fundamental aspect and concern of today's good design? As global energy reserves deplete over the coming decades, a strategy of reduced consumption will be essential to the production of furniture and architecture, alike. A lightweight design strategy is a way for designers to participate in …
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Receiver-Assigned CDMA in Wireless Sensor Networks
… over IEEE 802.15.4. The protocol's simple and lightweight design eliminates significant overhead compared to other protocols while meeting performance requirements, and could further enable the deployment of RA-CDMA WSNs.
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Decentralised velocity feedback control for thin homogeneous and lightweight sandwich panels
… feedback control for thin homogeneous and lightweight sandwich panels. This research is motivated by the increasing interest in lightweight design for fuel efficient transportation vehicles. Lightweight sandwich panels are very appealing due to their high stiffness to weight ratio but also …
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Parametric Design and Optimization of an Upright of a Formula SAE car
… requires finding the right balance between lightweight design and ample stiffness, crucial for maintaining precise steering geometry and overall vehicle dynamics, especially under intense loads. Furthermore, there is a need to explore the system of structural optimization and seamlessly …
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Towards High-Performance Reflectarray Antennas: Phase Sensitivity Reduction for Wide Bandwidth
… communication systems due to their high gain and lightweight design. However, their limited bandwidth poses a significant challenge because phase behavior varies across different frequencies. This thesis aims to address this limitation by proposing methods to widen the bandwidth while maintaining …
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Combined Mechanical and Command Design for Micro-Milling Machines
… their accuracy because of the mechanical design of the machines themselves. If the mechanical design of micro-mills and other machines consider flexible and lightweight design alternatives that utilize input shaping for vibration suppression instead of stiff and heavy designs, then faster …
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Technologieentwicklung zur großserientauglichen Herstellung automobiler Interieur-Bauteile in neuartiger Sandwichbauweise
Steigende Leichtbauanforderungen führten in den vergangenen Jahren zu einer verstärkten Weiterentwicklung neuer Leichtbauwerkstoffe und besonders leistungsfähiger Verfahrenstechnik für die Umsetzung leichter Automobilkomponenten in Großserie. Im Fahrzeuginterieur konnten sich naturfaserverstärkte …
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Study on Bandgap Manipulation and Structural Vibration Control in Sandwich Metastructures
… material properties derived from artificially designed unit cells, metastructures place greater emphasis on the structural design of practical engineering components and are therefore better suited for vibration control in real structures. In particular, locally resonant metastructures show …
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Graphene derivatives for Li-ion batteries
… exceptional energy density, extended lifespan, lightweight design, and minimal maintenance requirements. However, conventional Li-ion batteries with graphite anodes fall short of meeting the escalating energy demands due to their limited nominal capacity of 372 mAh g⁻¹. To address this …
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Multi-Material Topology Optimization Incorporating Practical Considerations in Response, Material Type Selection and Dissimilar Materials Joint
… (TO) is a well-established method for achieving lightweight designs. Historically, TO has evolved from considering a single candidate material to incorporating multiple candidate materials, thereby increasing design flexibility. The objective of this thesis is to propose an advanced …
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Secure and Efficient Implementations of Cryptographic Primitives
… great challenges in cryptographic system designs: how to protect privacy, authentication, and integrity in this distributed and connected computing world, and how to satisfy the requirements of different platforms, ranging from resource constrained embedded devices to high-end servers. …