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Now showing items 21-30 of 33
An analytical and numerical model to determine stresses in a Rock Melt Drill produced glass liner for potential use on Mars
(Texas A&M University, 2000)
A numerical and analytical model was constructed to determine the resultant stress state imposed on a Rock Melt Drill produced liner. The purpose of this study was to determine if the liner produced would possess the ...
Measurements of imbalance response for a rigid rotor fully supported on squeeze film dampers
(Texas A&M University, 2000)
Modern high performance turbomachinery providing increased power to weight ratios and larger efficiencies are designed to operate at higher speeds than prior designs. These machines are more sensitive to imbalance since ...
Chatter prediction from orthogonal cutting force data and stability analysis of peripheral end milling
(Texas A&M University, 2000)
Machine tool chatter has been the focus of extensive research due to its adverse impact on productivity and quality of machining. The objective of this thesis is to characterize tool motion from orthogonal cutting force ...
Detection of instabilities and transition in milling operation using wavelets
(Texas A&M University, 2000)
Machining operations are an intrinsic part of the manufacturing industry and, as a result, they are under constant scrutiny for development and technological enhancements. Mechanical instabilities that occur during machining ...
Visualization of flow boiling in an annular heat exchanger under reduced gravity conditions
(Texas A&M University, 2000)
This work examines the effects of gravitational acceleration on the flow boiling process. A test facility focusing on an annular heat exchanger was designed, built out of borosilicate glass, and flown on NASA's KC-135 ...
A comparison of the static and dynamic characteristics of straight-bore and convergent tapered-bore honeycomb annular gas seals
(Texas A&M University, 2000)
Results are presented from tests conducted with straight-bore and convergent tapered-bore honeycomb annular gas seals. The test seals had a 114.3 mm bore with an L/D = 0.75 and a nominal radial clearance of 0.19 mm. The ...
Study of Cubic Splines and Fourier Series as Interpolation Techniques for Filling in Short Periods of Missing Building Energy Use and Weather Data
(Texas A&M University, 2000)
To define a single technique that can be reliably used for evaluation of missing data in time series of weather and building energy use data is a complex task. This thesis evaluates the application of spline and Fourier ...
Investigation of spark discharge processes and ignition systems for spark-ignited internal combustion engines
(Texas A&M University, 2000)
Spark ignition of the air-fuel mixture at the appropriate time is important for successful flame initiation and complete combustion thereafter without unnecessary emissions. The physical and chemical reactions taking place ...
Modeling of air brakes for onboard diagnostics of heavy trucks
(Texas A&M University, 2000)
Accidents involving commercial vehicles have disastrous consequences; most of the times they result in human fatalities, environmental damage, traffic congestion leading to fuel wastage and associated productivity losses. ...
An experimental investigation into oil mist lubrication
(Texas A&M University, 2000)
Oil mist lubrication offers many advantages over sump lubrication. Unfortunately, mist lubrication generates sub-micrometer sized aerosol particles (fines) that escape from the oil mist lubrication system. These particles ...