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Now showing items 681-690 of 714
Theoretical and experimental study into the dynamics and control of a flexible beam with a DC-servo motor actuator
(Virginia Polytechnic Institute and State University, 1985)
Position and vibration control of a flexible beam is studied analytically and in the laboratory. Two different motor types are compared as actuators throughout the thesis: a standard voltage controlled motor and a torque ...
An analysis of self-cooling with infiltrated porous composites including the effect of the melt layer
(Virginia Polytechnic Institute, 1968)
A detailed analytical model was developed to include the effect of the melting process on a porous composite which retards its own heating rate by sacrificing its infiltrant. A transient one-dimensional heat-transfer ...
The development of a computer program using a modified room acoustics approach to determine sound levels in regular rooms
(Virginia Polytechnic Institute and State University, 1974)
A program was developed which calculated sound pressure levels at an array of points in a room. Necessary inputs are the room dimensions, sound power or sound pressure levels for the sources, absorption coefficients for ...
The evoluation of 'Boxes' to quantized inductive learning: a study in inductive learning
(Virginia Tech, 1996)
An inductive learning method is analyzed for use in on-line control. The controller has the benefit of being designed without a system model and is able to adapt itself to varying system parameters. Numerical experiments ...
Computer aided design of the RCCC spatial mechanism
(Virginia Polytechnic Institute and State University, 1986)
The purpose of this work is to create a software package for the computer aided design of the RCCC spatial mechanism.
The RCCC mechanism has been synthesized for three precision positions and the solutions have been ...
Equipment design to measure the film coefficient of superheated steam flowing in conduits
(Virginia Polytechnic Institute, 1964)
After reviewing all available literature on heat transfer to superheated steam at high temperatures and pressures, it was concluded that further investigation of this problem would be of value.
The thesis was concerned ...
Design analysis of a drilled geothermal well
(Virginia Polytechnic Institute and State University, 1974)
An insulated coaxial pipe for a 50,000 ft drilled geothermal well was designed, in order to remove heat from the earth's crust by the circulation of water through a single well. The design took into consideration means of ...
Design of apparatus to determine Reynolds' number of various lubricating oils under varying conditions
(Virginia Polytechnic Institute, 1947)
The original intention regarding the Reynolds’ Number Apparatus was to design, construct, and operate extensively the experimental machinery. The extensive operation of the apparatus, however, would entail not only the ...
A study of contact between a profile meter stylus and polymer films on roughened substrates
(Virginia Tech, 1985-12-05)
When a polymer film is deposited onto a roughened substrate, the film masks over the underlying substrate roughness. Then when attempting to measure the roughness of the polymer film surface using a stylus-type profile ...
An experimental investigation of heat transfer through insulation uniformly applied to a flat end cylinder
(Virginia Polytechnic Institute, 1951)
The determination of the heat transfer through a flat wall of which one surface is isothermal at a temperature of t<sub>a</sub> and the other surface is isothermal at a temperature t<sub>b</sub> is the simple problem of ...