Sökning: "Aerospace Engineering"
Visar resultat 1 - 5 av 254 avhandlingar innehållade orden Aerospace Engineering.
1. Improving Fixed Wing UAV Endurance, by Cooperative Autonomous Soaring
Sammanfattning : The ever-expanding use and development of smaller UAVs (Unmanned Aerial Vehicles) has highlighted an increasing demand for extended range and endurance for this type of vehicles. In this thesis, the development of a concept and system for autonomous soaring of cooperating unmanned aerial vehicles is presented. LÄS MER
2. Optimization of Vehicle Structures under Uncertainties
Sammanfattning : Advancements in simulation tools and computer power have made it possible to incorporate simulation-based structural optimization in the automotive product development process. However, deterministic optimization without considering uncertainties such as variations in material properties, geometry or loading conditions might result in unreliable optimum designs. LÄS MER
3. Sense, Actuate and Survive : Ceramic Microsystems for High-Temperature Aerospace Applications
Sammanfattning : In aerospace applications, but also in manufacturing, mining, energy industry and natural hazards, high temperature, corrosion, erosion and radiation, challenge the performance and being of hardware.In this work, high-temperature co-fired ceramic (HTCC) alumina and platinum have been used for a range of devices intended for aerospace applications at up to 1000°C. LÄS MER
4. Enhanced Composite Joint Performance through Interlacement of Metal Inserts
Sammanfattning : The work in this thesis investigates bolted joints in fibre reinforced composites with particular focus on a novel insert concept. The concept is characterised by replacing all composite plies with stacked metal patches, locally around a bolt hole, so that they jointly form a solid metal reinforcement. LÄS MER
5. Automated layup and forming of prepreg laminates
Sammanfattning : Composite materials like carbon fiber-reinforced polymers (CFRPs) present highly appealing material properties, as they can combine high strength with low weight. In aerospace applications, these properties help to realize lightweight designs that can reduce fuel consumption. LÄS MER
