Sökning: "shape optimization"
Visar resultat 1 - 5 av 153 avhandlingar innehållade orden shape optimization.
1. Shape Optimization for Acoustic Wave Propagation Problems
Sammanfattning : Boundary shape optimization is a technique to search for an optimal shape by modifying the boundary of a device with a pre-specified topology. We consider boundary shape optimization of acoustic horns in loudspeakers and brass wind instruments. LÄS MER
2. Cost Optimization of Aircraft Structures
Sammanfattning : Composite structures can lower the weight of an airliner significantly. Due to the higher process complexity and the high material cost, however, the low weight often comes with a significant increase in production cost. The application of cost-effective design strategies is one mean to meet this challenge. LÄS MER
3. Numerical Methods for Aerodynamic Shape Optimization
Sammanfattning : Gradient-based aerodynamic shape optimization, based on Computational Fluid Dynamics analysis of the flow, is a method that can automatically improve designs of aircraft components. The prospect is to reduce a cost function that reflects aerodynamic performances. LÄS MER
4. Shape Optimization for Electromagnetic and Quasimagnetostatic Applications
Sammanfattning : This thesis uses a continuum formulation of sensitivity for shape optimization in two-dimensional microwave scattering and quasimagnetostatic problems. The continuum sensitivity is obtained by solving an appropriate adjoint problem. LÄS MER
5. Development of shape optimization for internal flows
Sammanfattning : This thesis describes the development of an adjoint based optimizationmethod.The goal is to develop a robust method capable of handling multipledesign variables, whereastraditional methods have shown to be too costly for many design parameters.The main application is for internal flow geometries within theautomotive industry. LÄS MER