Sökning: "normal-mode analysis"
Visar resultat 1 - 5 av 8 avhandlingar innehållade orden normal-mode analysis.
1. Computer simulations of condensed phases with icosahedral local order
Sammanfattning : Understanding the fundamental aspects, and the formation mechanisms of glasses remains an outstanding unsolved problem of condensed-matter physics.Glass-formation in simple atomic systems is generally associated with the icosahedral local order. LÄS MER
2. Finite Difference and Discontinuous Galerkin Methods for Wave Equations
Sammanfattning : Wave propagation problems can be modeled by partial differential equations. In this thesis, we study wave propagation in fluids and in solids, modeled by the acoustic wave equation and the elastic wave equation, respectively. LÄS MER
3. Active Health Monitoring of Aerospace Composite Structures by Embedded Piezoceramic Transducers
Sammanfattning : The objectives of the thesis work were to study theinteraction between embedded piezoceramic transducers andcomposite structures as well as determine techniques tosimplify the Lamb waves analysis. Firstly, this studyconsidered the design of the embedded piezoceramic transducers. LÄS MER
4. Numerical Methods for Aeroacoustic Analysis of Turbomachines
Sammanfattning : Numerical simulations are important tools for developing new aircraft that can meet future needs. When numerical simulations are used to compute aircraft noise, a two-step procedure is often employed. In the first step, the noise sources are determined using, e.g. LÄS MER
5. High Order Finite Difference Methods in Space and Time
Sammanfattning : In this thesis, high order accurate discretization schemes for partial differential equations are investigated. In the first paper, the linearized two-dimensional Navier-Stokes equations are considered. LÄS MER