Index Catalog // ScholarsArchive@OSU

Design, analysis, and validation of composite c-channel beams

Creator:: Koski, William C.
Abstract:: A lightweight carbon fiber reinforced polymer (CFRP) c-channel beam was previously designed using analytical theory and finite element analysis and subsequently manufactured through a pultrusion process. Physical testing revealed the prototype did not meet the bending and torsional stiffness of the beam model. An investigation revealed that the manufactured prototype...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF William C

Thermal and seismic analysis of piping systems using classical methods

Creator:: Nisargand, Arun L.
Abstract:: "Piping Design and Engineering" first published in 1963 by Grinnell, Co. is widely used by engineers to perform approximate thermal stress analysis of high-temperature piping systems. The text consists of numerical constants to calculate end reactions and maximum bending stresses in a variety of piping configurations from known properties of...
Resource Type:: Masters Thesis
Full Text:: . William C. Kinsel,/ Lecturer of Mechanical Engineering in charge of major Redacted for Privacy Dr

Evaluation of copper to superconductor area ratio measurement techniques for niobium-titanium composite superconducting wire

Creator:: Pyon, Taeyoung
Abstract:: Measurement of the copper to superconductor ratio (Cu/SC) in composite superconducting wires is necessary for process control, quality assurance, and characterization of the final wire properties. A comparison has been made of three techniques for measuring the Cu/SC ratio on a set of commercial wires produced for the Superconducting SuperCollider...
Resource Type:: Masters Thesis
Full Text:: Composite Superconducting Wire Redacted for Privacy Abstract approved : William H. Warnes Measurement of

Mixed reactant single chamber fuel cell, using products generated from the electrolysis of an aqueous electrolyte

Creator:: Jost, William C.
Abstract:: A Mixed Reactant Single Chamber (MRSC) Fuel Cell is a relatively recent concept in the field of fuel cell engineering originally developed in the late 1950’s. Typical fuel cells have separated reactants (a separated fuel and oxidizer) that react on their usually non-selective electro-catalytic materials. A mixed reactant fuel cell...
Resource Type:: Masters Thesis
Full Text:: THESIS OF William C. Jost for the degree of Master of Science in Mechanical Engineering presented on

NOx emissions for a gas turbine as a function of fuel-bound nitrogen and other variables

Creator:: Faye, William C.
Abstract:: Emissions of oxides of nitrogen from a small (15 kW) turbine generator burning high fuel bound nitrogen fuels were measured by a chemiluminescence method. Kerosene was used as the base fuel and pyridine was added to achieve different fuel bound nitrogen levels. Mixtures of 0.0%, 0.5%, and 1.0% (by weight)...
Resource Type:: Masters Thesis
Full Text:: nitrogen and other variables AN ABSTRACT OF THE THESIS OF William C. Faye for the degree of Master of

Wind turbulence input model for horizontal axis wind turbines

Creator:: Lin, Shuh-ren
Abstract:: In order to estimate wind turbine residL2;characteristics in the presence of atmospheric turbulence, the important atmospheric sources for the force excitations felt by the wind turbine system must be identified and characterized. The goal of this research is to develop the wind turbulence input model for horizontal axis wind turbines....
Resource Type:: Dissertation
Full Text:: Abstract approved: Redacted for privacy Dr. William E`: -- ;Holley!{ In order to estimate wind turbine

Mechanics of Nb-Ti superconducting composites

Creator:: Guo, Zhiqiang
Abstract:: Mechanical behavior of Nb-Ti superconducting composites with copper matrices have been studied experimentally and theoretically. Experimental work includes extensive measurements of Cu/Nb-Ti composite system. Techniques for fine fiber testing and composite wire measurement have been developed. Experimental parameters examined in this research include geometry, hardness, Young's modulus, Poisson's ratio, yield...
Resource Type:: Dissertation
Full Text:: Abstract approved: ,oercond cting Composi s William H. Warnes Mechanical behavior of Nb-Ti

Vehicle dynamic validation and analysis from suspension forces

Creator:: Murray, William S.
Abstract:: Several standardized courses for Formula SAE (FSAE) testing are introduced and described with sufficient detail to be reproduced by any Formula SAE team. Basic analysis methods for the courses are given as well as explanations of how those analyses could be used. On-car data from the Global Formula Racing (GFR)...
Resource Type:: Masters Thesis
Full Text:: William S. Murray for the degree of Master of Science in Mechanical Engineering presented on March 21

Development of acoustic emissions testing procedures applicable to conventionally reinforced concrete deck girder bridges subjected to diagonal tension cracking

Creator:: Lovejoy, Steven C.
Abstract:: A need exists to develop a non-destructive testing technique that can identify the formation and propagation of diagonal tension cracks in conventionally steel reinforced concrete deck girder (RCDG) highway bridges in the State of Oregon. Such a technique could be included into a structural health monitoring (SHM) system installed on...
Resource Type:: Dissertation
Full Text:: Steven C. Lovejoy for the degree of Doctor of Philosophy in Mechanical Engineering presented on May 30

Micromechanics of heterogeneous materials under compressive loading

Creator:: Laird, George
Abstract:: In mining and mineral processing, compressive loading is often encountered during the comminution of ore bearing minerals and in the wear resistant materials used in the comminution circuit. A common thread joining many of the materials that are primarily used under compressive loading is the presence of a high modulus...
Resource Type:: Dissertation
Full Text:: would also like to thank Drs. Charles E. Smith, Michael E. Kassner, James C. Rawers, and William C

The effect of alpha phase morphology on the impact energy of commercial purity titanium

Creator:: York, James Michael
Abstract:: Samples of commercial purity titanium were heat treated above the beta transformation temperature and within the two phase alpha-beta phase field, followed by cooling at varying rates. Testing of the samples in tension and by instrumented impact indicated that some strengthening could be imparted by these heat treatments, although at...
Resource Type:: Masters Thesis
Full Text:: privacy William D. McMullen Samples of commercial purity titanium were heat treated above the beta

Failure analysis of pre-notched composite laminated plates under four-point bending conditions

Creator:: Arias Gonzales, Sergio
Abstract:: Ever since composite laminate technology was introduced into the aerospace and automotive industry, there has been a need to fully understand the damage progression experienced by composite laminated plates in the presence of a notch. While numerous research studies have been conducted on this matter when subjected to in-plane loads,...
Resource Type:: Dissertation
Full Text:: Bending Conditions Abstract approved: __________________________________________ Timothy C

Properties of veneer sliced from serpentine-end-matched flitches

Creator:: Liu, Yuqing
Abstract:: Eighteen Ponderosa Pine (Pinus ponderosa Dougl.ex.laws) veneer flitches were randomly selected and crosscut into paired flitches. Serpentine-end-matched (SEM) joints were machined in the flitches, joint amplitude equal to the width in one half of the paired flitch and joint amplitude equal to 2/3 width in the other half of the...
Resource Type:: Masters Thesis

An investigation into the electrochemical removal of unwanted residual material protrusions from parts

Creator:: Bingham, Bruce C.
Abstract:: Manuscript I: The removal of residual casting material from gating has traditionally been performed by abrasive grinding techniques. However, high amounts of belt wear can occur when working with high strength alloys, especially those typically seen in the aerospace industry. An alternative machining process called electrochemical machining (ECM) uses electrolysis...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Bruce C

Effects of selected minor alloying additions on the structure deformation characteristics of beryllium

Creator:: Dooley, George Joseph, III
Abstract:: Solid solution alloying was employed in an attempt to produce some relatively ductile form of beryllium. If the c/a ratio could be significantly altered, it was felt new or different slip systems could be activated. The following elements were selected on the basis of atomic size, melting point, crystal structure...
Resource Type:: Dissertation
Full Text:: Abstract approved: William D. McMullen Solid solution alloying was employed in an attempt to produce

Computational modeling of a diffusion bonded microchannel under high pressure and temperature

Creator:: Pratte, William
Abstract:: Diffusion bonded microchannels provide significant benefits by reducing space requirements while improving thermal efficiency when used in heat exchangers. In particular, these microchannels have potential to improve efficiencies for combining concentrated solar power with supercritical CO2 Brayton cycles, where structures operate at high temperatures (760 ˚C) and high pressures (25...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF William H

Dynamic modeling of a refrigerant boiler for power applications

Creator:: Curry, Thomas Haitsch
Abstract:: A dynamic model of a refrigerant boiler has been produced by the use of distributed parameter modeling techniques. A number of elementary cases were studied and were used as an aid in the final model formulation. Modeling using distributed parameters employed the use of mesh equations which were then reorganized...
Resource Type:: Masters Thesis
Full Text:: Power Applications Abstract approved: Redacted for Privacy k L.! Ad, v N.^-nati Dr. William E

Metallurgy and superconductivity of niobium-titanium-tantalum ternary alloy systems

Creator:: Li, Na
Abstract:: The metallurgy and superconductivity of the Nb-Ti-Ta ternary alloy system were studied. The Nb-Ti, and Ta-Ti binary samples, and Nb-Ti-Ta ternary samples were precipitation heat treated under different schedules. After the precipitating heat treatment, the samples were characterized by X-Ray Diffraction (XRD) techniques. Equilibrium binary and ternary phase diagrams based...
Resource Type:: Masters Thesis
Full Text:: Niobium-Titanium-Tantalum Ternary Alloy System. Abstract approved: William H. Warnes The metallurgy

Periodic system analysis with application to wind turbines

Creator:: Bahrami, Mohsen
Abstract:: An algorithm is developed to compute the time averaged, output statistics of a linear system with periodic coefficients forced by stationary white noise. The algorithm makes use of Floquet theory and introduces the averaged system dynamics matrix to obtain more favorable numerical performance. The time series approach to averaged statistics...
Resource Type:: Dissertation
Full Text:: . William E. Holley, whose help and guidance has been the main impetus for this accomplishment. It should

Application of linear quadratic control in reduction of aerodynamic forces on aircraft

Creator:: Wei, Shou Yuan
Abstract:: A problem found in high speed transport aircraft is excessive tail loading when flying at cruise speeds through turbulence. Attempts to reduce these areodynamic forces on the tail may result in unstable aircraft motions. Using a linear quadratic regulator in conjunction with a Kalman filter, the feasibility of designing an...
Resource Type:: Dissertation
Full Text:: . William E: Holle A problem found in high speed transport aircraft is excessive tail loading when flying

Properties of a niobium-titanium multilayer thin film

Creator:: Norris, Jeffrey A., (Jeffrey Alan), 1965-
Resource Type:: Masters Thesis
Full Text:: a Niobium-Titanium Multi layer Thin Film. Abstract approved: William H. Warnes A multilayer thin

Microstructures and properties of Nb/Ti multilayered thin films

Creator:: Faase, Kenneth James
Resource Type:: Dissertation
Full Text:: Multi layered Thin Films. Abstract approved: William H. Warnes The microstructures and properties of

Discrete-time explicit model reference adaptive control for robotic manipulators

Creator:: Yuh, Junku
Abstract:: In this dissertation a direct approach to discrete-time model reference adaptive control (MRAC) based on hyperstability theory is proposed to control industrial robotic manipulators. For industrial robots and manipulators, which usually have highly nonlinear and complex dynamic equations and often have unknown inertia characteristics, it is very difficult to achieve...
Resource Type:: Dissertation
Full Text:: ,_ br. William E. Holley In this dissertation a direct approach to discrete-time model reference

Mechanical properties of Nb-Ti composite superconducting wires

Creator:: Liu, He
Abstract:: Mechanical properties of Nb-Ti composite superconducting wires were tested at room temperature. The results were analysed using simple composite theory, the rule of mixtures. The objective is to predict the mechanical properties of Nb-Ti superconducting composite wires as a function of volume ratio and geometry of the components, the composite...
Resource Type:: Masters Thesis
Full Text:: Wires. /i/ Ai /, Abstract approved: Redacted for Privacy William H. Warnes Mechanical properties of Nb

Indentation hardness of Douglas fir and Western hemlock lumber related to density

Creator:: Corder, Stanley E.
Abstract:: Indentation hardness tests were made on sections of 211 pieces of Douglas fir and 208 pieces of Western hemlock at a moisture content of about 11 percent. Specific gravity and visual-density evaluations were also determined. Correlation coefficients for linear regression of density, as measured by specific gravity, on average standard...
Resource Type:: Masters Thesis
Full Text:: approved William D. McMullen Indentation hardness tests were made on sections of 211 pieces of Douglas

Critical current distributions and the V(1) transition in Nb-Ti superconducting composites

Creator:: Narang, Girish
Abstract:: It is well established that the extended range V(I) transition behavior in filamentary superconducting composites depends strongly on the processing conditions of the composite. Based on previous work, a model proposed by Warnes et al predicts that the second derivative of the V(I) transition is related to a more fundamental...
Resource Type:: Masters Thesis
Full Text:: DISTRIBUTIONS AND THE V(I) TRANSITION IN Nb-Ti SUPERCONDUCTING COMPOSITES. Abstract approved: WILLIAM H

Small sample, low-temperature calorimetry

Creator:: Wolochuk, Lee
Abstract:: A calorimeter capable of measuring the heat capacity of 1 mg size samples from 4.2 to greater than 100 K has been designed, constructed, and tested. The sample is bonded to the end of a 0.002 inch diameter, 0.5 cm long chromel-constantan thermocouple (type E) and heated optically with a...
Resource Type:: Masters Thesis
Full Text:: appreciation and gratitude to my advisor, Dr. William H. Warnes, for guiding me throughout this project

The effect of small amounts of magnesium on the superplastic behavior of an aluminum-zinc alloy

Creator:: Abbott, Vaughn William
Abstract:: The base Al-Zn superplastic alloy was investigated at 250°C to determine the effect of small amounts of magnesium on mechanical properties. Six alloys of nominal composition 0.00, 0.10, 0.25, 0.50, 0.75, and 1.00 weight percent magnesium, constant 78 weight percent zinc, and variable 21 to 22 weight percent aluminum were...
Resource Type:: Masters Thesis
Full Text:: superplastic behavior of an aluminum-zinc alloy AN ABSTRACT OF THE THESIS OF VAUGHN WILLIAM ABBOTT for the

Large-strain softening of aluminum in shear at elevated temperature

Creator:: Alhajeri, Saleh N.
Abstract:: Pure aluminum deformed in torsion (shear) at elevated temperatures reaches a broad "peak" stress and then undergoes about a 17% decrease in flow stress with deformation to roughly 1-2 equivalent uniaxial strain. Beyond this strain the flow stress is approximately constant. The sources for this softening are unclear. The suggested...
Resource Type:: Masters Thesis
Full Text:: . Timothy C. Kennedy, Dr. William H. Wames, and Dr. R. Logen Logendran. I appreciate their time investment

A numerical analysis of ice fog produced by automobiles

Creator:: Nelson, William George
Abstract:: A model of an exhaust plume was developed and programmed on a digital computer. The purpose of the model was to predict the concentration and size distribution of ice particles produced from automobile exhaust during arctic conditions. The model accounted for the nucleation, growth, and freezing of the condensed water...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF WILLIAM GEORGE NELSON for the

An analytical model for predicting truck performance on interstate highways

Creator:: Cantwell, William Curtis
Abstract:: This thesis describes a Truck Performance Simulation Model developed for use in a United States Department of Transportation university research project entitled "The Energy, Economic and Environmental Consequences of Increased Vehicle Size and Weight." The performance of the truck is found by specifying its engine, driveline and tire characteristics and...
Resource Type:: Masters Thesis
Full Text:: interstate highways AN ABSTRACT OF THE THESIS OF William Curtis Cantwell for the degree of Master of

Temperature profiles, thermal diffusion factors, and molecular diffusion coefficients for flow-coupled diffusion in a two-dimensional flow field

Creator:: Laity, Walter William
Resource Type:: Dissertation
Full Text:: THE THESIS OF WALTER WILLIAM LAITY for the DOCTOR OF PHILOSOPHY (Name of student) (Degree) in

Analysis of heat pump coupled aquifer seasonal thermal energy storage systems

Creator:: McMahon, William R.
Resource Type:: Masters Thesis
Full Text:: energy storage systems AN ABSTRACT OF THE THESIS OF William R. McMahon for the degree of Master of

Design of a Gas Engine Muffler

Creator:: Farnsworth, William Yates
Abstract:: Simple as may seem. the subject, "A gas engine muffler," to the reader on first thought, if he will but take time to consider the importance of such a device in connection with the operation of internal combustion engines, he will probably come to the conclusion that it is not...
Resource Type:: Undergraduate Thesis
Full Text:: OF A GAS ENGINE MUFFLER. Submitted to the Faculty of the O R E G O N A G R I C U L T U R A L C

Tentative equilibrium diagram for the nickel-rich end of the nickel-zirconium system

Creator:: Armstrong, Asa William
Resource Type:: Dissertation
Full Text:: -ZIRCONIUM SYSTEM by ASA WILLIAM ARMSTRONG A TIESIS submitted to OREGON STATE COLLEGE in partial

Simulaton of a solar heating and cooling system with experimental evaluation

Creator:: Layton, William Clifford
Abstract:: This thesis is concerned with simulating two forms of energy retrieval. Standard computer programs are routinely used to simulate such energy systems. However, the accuracy of these simulations is not well documented. The main objective of the work presented here is to evaluate the validity of this type of simulation...
Resource Type:: Masters Thesis
Full Text:: Experimental Evaluation AN ABSTRACT OF THE THESIS OF William Clifford Layton for the degree of Master of

The radial load rating of anti-friction bearings

Creator:: Anderson, Albert William
Resource Type:: Masters Thesis
Full Text:: . THE RADIAL LOAD RATING OF TI-FRICTION BEARINGS by ALBERT WILLIAM ANDERSON A THESIS submitted

Photonic Sintering of Nanoparticle Inks : Experimental Characterization, Computational Modeling and System Design for Additive Manufacturing

Creator:: MacNeill, William D.
Abstract:: Photonic sintering of nanoparticles is a relatively new process for sintering of nanoparticles, deposited on a substrate, into functional solid structures. The working principle of this process is the incidence of large-area broad-spectrum light onto deposited nanoparticles, which results in heat generation in the nanoparticles and their subsequent densification. Key...
Resource Type:: Masters Thesis
Full Text:: OF William D. MacNeill for the degree of Master of Science in Mechanical Engineering presented

Heat and mass transfer rates associated with the drying of Southern pine and Douglas fir veneer in air and in steam at various temperatures and angles of impingement

Creator:: Laity, Walter William
Abstract:: Southern pine and Douglas fir veneer samples were dried in air under the following conditions: air temperatures were 350, 600, and 750°F; air velocities were 50, 100, and 150 feet per second, and angles of impingement of air against the veneer surfaces were 0°, 45°, and 90°. The resulting drying...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF WALTER WILLIAM LAITY for the

An apparatus for determining the ignition temperatures of organic substances

Creator:: Harrison, Charles William
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT 0F THE ThESIS 0F Charles William Harrison for

An experimental investigation of heat transfer in the transition and turbulent regimes for natural convection in mercury in a uniformly heated vertical channel

Creator:: Humphreys, William Warren
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF William Warren Humphreys for

Development of a control system for a walking machine leg

Creator:: Thompson, Eric William
Abstract:: This thesis presents a control system for a walking machine leg. The leg is representative of one of the six legs required for a proposed walking machine based on the geometry of the darkling beetle. Each of the three joints is controlled by a DC servo motor mounted to the...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Eric William Thompson for the degree of Master of Science in

Heat Treatment of Carbon Steel

Creator:: Taylor, William Everett
Abstract:: All carbon steel that is used in tools, springs, and machine parts where tempering is necessary undergoes three distinct heat treatments: first, heating for forging; second, heating for hardening; and third, heating for tempering.
Resource Type:: Undergraduate Thesis
Full Text:: of BACHELOP OF SCIENCE in MECHANICAL EPT. Redacted for privacy Date, APPROVED, - C

The effect of operating variables on piston ring wear as determined by radioactive tracers

Creator:: Peterson, Reuben William
Resource Type:: Masters Thesis
Full Text:: determined by radioactive tracers AN ABSTRACT OF THE THESIS OF Reuben William Peterson for the MS In _Mo

Electronic instrumentation for measuring detonation in spark and compression ignition engines

Creator:: Hanley, William Vincent
Resource Type:: Masters Thesis
Full Text:: ;r1otion prino-tp).c is dAcribd. Thie engine indicator oonii5te essentially of a rnioto8trictivo nickel

The significance and measurement of the Tsai-Wu normal interaction parameter F₁₂

Creator:: Hansen, William Christian
Resource Type:: Masters Thesis
Full Text:: normal interaction parameter F₁₂ AN ABSTRACT OF THE THESIS OF William Christian Hansen for the degree

Economics of personal airplane operation

Creator:: Skinner, William James
Resource Type:: Masters Thesis
Full Text:: 57 Figure 4. Transportation Cost Cornparison.................... 68 C[LRTS Chart 1. Variable

Dancer in the Wind Farm: Automated Eagle Monitoring and Deterrence

Creator:: Maurer, William G.
Abstract:: Improving the coexistence of eagles and wind energy is a critical effort for the sustainable expansion of the wind energy sector. Information about eagle activity and interactions with wind turbines enables verification of deterrence methods. This information can be broken into two categories: eagle activity in the airspace around wind...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF William G

Bird and bat interaction vision-based detection system for wind turbines

Creator:: Maurer, William Gage
Abstract:: Bird and bat collisions with wind turbine blades are an occurrence which are extremely variable in frequency. With the expansion of wind farms, determining the true quantity of collisions and the species involved is imperative for preventing ecological damage. Explored in this thesis is a blade mounted camera for wirelessly...
Resource Type:: Honors College Thesis
Full Text:: for Wind Turbines by William Gage Maurer A THESIS

Feasibility of utilizing an integrating nephelometer to measure visibility

Creator:: Nelson, William George
Abstract:: An integrating nephelometer was set up at the Eugene Airport which is located five miles north of Eugene, Oregon, on Highway 99 West. Continuous atmospheric scattering coefficient readings were obtained from July 1, 1969, to August 28, 1969. These data are converted to meteorological range through the use of the...
Resource Type:: Masters Thesis
Full Text:: measure visibility AN ABSTRACT OF THE THESIS OF WILLIAM GEORGE NELSON for the M. S. (Name of student

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