Essays about: "Eigenmodes"

Showing result 11 - 15 of 22 essays containing the word Eigenmodes.

1. 11. Global Analysis of Tall Buildings with Tubed Mega Frame Structures

   University essay from KTH/Betongbyggnad

   Author : Jenny Svärd; Arezo Partovi; [2016]
   Keywords : ;

   Abstract : Today, tall buildings are generally built with a central core that transfers the loads down to the ground. The central core takes up a large part of the floor space and there is less room for the actual purpose of the building, such as offices and apartments. The consequence of this is also less rental profit. READ MORE

3. 12. Pilot Testing of a Hydraulic Bridge Exciter

   University essay from KTH/Bro- och stålbyggnad

   Author : Richard Borg; Olivier Dymén; [2015]
   Keywords : Hydraulic bridge exciter; controlled excitation; modal testing; experimental modal analysis; railway bridges; measurements; load shaker; FEM; FE-modelling; script; Hydraulisk broexciterare; kontrollerad excitering; modala tester; experimentell modal analys; järnvägsbroar; mätningar; lastexciterare; FEM; FE-modellering; script;

   Abstract : In the design of a railway bridge that is meant for train speeds larger than 200 km/h, the Swedish Traffic Administration requires a dynamic analysis in addition to the conventional static design. The models used for static design may not always be suitable for dynamic analysis, which could lead to inaccurate estimations of the dynamic response. READ MORE

4. 13. Absorption of light through isolated and coupled resonances in horizontal InP nanowire arrays

   University essay from Lunds universitet/Fasta tillståndets fysik; Lunds universitet/Fysiska institutionen

   Author : Ali Hosseinnia; [2015]
   Keywords : Coupling; Optical resonances; Horizontal nanowires; Periodic Array; Indium Phosphide; Finite Element Method; Scattering Matrix Method; Eigen function method; Mie Theory; Scattering; Absorption; Nano-Optics; Nanowire; Physics and Astronomy;

   Abstract : We have studied the interaction of light with two types of closely related nanostructures: a single horizontal InP nanowire and an infinite periodic array of such nanowires. The study has been done theoretically by calculating the absorption cross section of the nanowires via a semi analytical method, the Mie theory, and two numerical methods, the scattering matrix method (SMM) and the finite element method (FEM) to perform electromagnetic modeling. READ MORE

5. 14. Design of MIMO Antenna for a Realistic Mobile Phone Platform Using Characteristic Modes

   University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

   Author : John Ako Enohnyaket; Augustine Sekyere; [2015]
   Keywords : MIMO Antenna; Characteristic Modes; Technology and Engineering;

   Abstract : The Theory of Characteristic Modes (TCM) provides an alternative means of antenna synthesis in compact mobile handsets by taking into account the chassis. This makes it possible to create dual-element Multiple-Input Multiple-Output (MIMO) antennas in mobile handsets with very little coupling and correlation between the two antennas. READ MORE

6. 15. Finite Element Modeling of Dynamic Properties of Power Supply for an Industrial Application

   University essay from Blekinge Tekniska Högskola/Institutionen för maskinteknik

   Author : Mostafa Mohammadnejad; Mahdi Ghazvini; [2014]
   Keywords : Finite element model; Dynamic properties; Experimental modal analysis; Eigenfrequency; Eigenmodes; Harmonic analysis;

   Abstract : In this thesis, the dynamic properties of the mechanic structure of Power Supply for an Industrial Application, an Alstom company product, are considered. A finite element model of the Power Supply mechanic structure have been generated with the aid of the MSC Marc software. READ MORE