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Design Optimization and Health Monitoring for Multi-Directional Composite Flywheel Energy Storage Systems
(2008-09-09)
Flywheels are used to store kinetic energy through the rotation of an inertial mass, which usually rotates at very high speeds. Generally, that energy can be extracted (using a motor-generator system) in the form of ...
Health Monitoring for Flywheel Rotors Supported By Active Magnetic Bearings
(2008-09-09)
Magnetic bearings are not a new technology in themselves, yet the control and implementation of such devices is still a budding science. Magnetic bearings are particularly attractive for some applications because of the ...
Dynamic Modeling of Polymer Electrolyte Membrane Fuel Cell Stack with 1D and 2D CFD Techniques
(2008-09-09)
The PEM fuel cell is a potential candidate for use as an alternative power source in future vehicle and power conditioning applications. The electric power, as a load, continuously varies as a function of time in the ...
Simulation, Estimation, and Experimentation of Vehicle Longitudinal Dynamics That Effect Fuel Economy
(2008-09-09)
In this thesis, longitudinal vehicle dynamics are researched with an emphasis on heavy trucks and fuel economy. Commercial vehicles display large variations in their parameters, and due to many current trends in transportation ...
Some Studies on Modeling and Simulation of a Disc Brake System for Squeal Prediction
(2008-09-09)
Most mechanical systems that involve a sliding contact experience some degree of friction induced self-excited vibration. A well known example is brake squeal which is a top concern for automotive companies, who must spend ...
Microstructural effects on fracture behavior of particulate composites: Investigation of toughening mechanisms using optical and boundary element methods
(2008-09-09)
Particulate polymer composites are used in a variety of engineering applications. These are generally two phase materials with polymeric phase reinforced by a filler phase to improve overall mechanical, thermal and/or ...
Experimental Investigation of Cavity Induced Two Phase Flow in Silicon Microchannels
(2008-09-09)
Modern developments in microelectronics manufacturing and architecture continue to lead to reductions in feature sizes on microprocessor chips. The demand for faster and more powerful systems has approached the limits of ...
Experimental And Analytical Investigation Of A Dynamic Gas Squeeze Film Bearing Including Asperity Contact Effects
(2008-09-09)
This thesis presents a theoretical and an experimental investigation of planar gas squeeze film bearings. The thickness and pressure profile of the gas squeeze film are obtained by simultaneously solving the Reynolds ...
Feasibility Study of Ultrasound Measurements on the Human Lumbar Spine
(2009-02-23)
This study is a part of a research project that aims to measure the variation in the intervertebral distance of patients that are subjected to lumbar flexion-distraction chiropractic manipulation. The purpose of this ...
Characterization and Prediction of Material Response of Micro And Nano-Underfills for Flip Chip Devices
(2008-09-09)
Silica particles are used as a filler material in electronic underfills to reduce coefficient of thermal expansion of the underfill-epoxy matrix. In traditional underfills, the size of silica particles is in the micrometer ...