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Full-Text Articles in Engineering

Optimization Of Miniaturized Resonant Microwave Cavities For Use In Q-Thrusters, Joshua Steven Pennington Aug 2017

Optimization Of Miniaturized Resonant Microwave Cavities For Use In Q-Thrusters, Joshua Steven Pennington

Graduate Theses and Dissertations

A gedankenexperiment was considered to compare a hypothetical thruster that used no reaction mass to propulsion methods currently in use. A brief discussion of previous research work done on closed resonant cavity thrust devices was conducted. Using the previous work as a template, a simulation plan was devised. Computational models of resonant microwave cavities were constructed and investigated using COMSOL software. These COMSOL simulations were verified against known analytical solutions using Matlab software as a computational tool. Multiphysics simulations were created to study the microwave heating environment of the resonant cavities. From the COMSOL study outputs, the electromagnetic field magnitude, …


Hev To Phev Conversion Compatibility, Steven D. Jenkins, Mehdi Ferdowsi Sep 2008

Hev To Phev Conversion Compatibility, Steven D. Jenkins, Mehdi Ferdowsi

Electrical and Computer Engineering Faculty Research & Creative Works

This paper includes some of the information gathered regarding the feasibility of converting a series-parallel configured electric vehicle to a plug-in hybrid electric vehicle versus using a series configured electric vehicle to a plug-in hybrid electric vehicle. It will explain the theory behind how a series configured hybrid electric vehicle (HEV) might be a better option due to the power rating of the electric motor. Using ADVISOR (Advanced Vehicle Simulator) it will explain test results and form conclusions regarding the efficiency of a series-parallel configured HEV vs. a series configured HEV as it relates to their feasibility of conversion to …


Dc Power Bus Modeling Using A Circuit Extraction Approach Based On A Mixed-Potential Integral Equation Formulation And An Iterative Equation Solver, Jun Fan, James L. Drewniak, James L. Knighten Oct 2000

Dc Power Bus Modeling Using A Circuit Extraction Approach Based On A Mixed-Potential Integral Equation Formulation And An Iterative Equation Solver, Jun Fan, James L. Drewniak, James L. Knighten

Electrical and Computer Engineering Faculty Research & Creative Works

A quick and simple approach is developed to perform circuit simulations for an equivalent circuit extracted from a first principles formulation for DC power bus structures. The simulations are done by solving the system equation using an iterative method. Good agreement between modeling and measurements demonstrate the effectiveness of the method, which is very suitable and computationally efficient for frequency-domain DC power modeling.


Transient Stability Simulation By Waveform Relaxation Methods, Marija D. Ilić, M. A. Pai, Mariesa Crow Nov 1987

Transient Stability Simulation By Waveform Relaxation Methods, Marija D. Ilić, M. A. Pai, Mariesa Crow

Electrical and Computer Engineering Faculty Research & Creative Works

In this paper, a new methodology for power system dynamic response calculations is presented. The technique known as the waveform relaxation has been extensively used in transient analysis of VLSI circuits and it can take advantage of new architectures in computer systems such as parallel processors. The application in this paper is limited to swing equations of a large power system. Computational results are presented.