Index Catalog // ScholarsArchive@OSU

Design and Fabrication of a Public Locker for Non-Motorized Watercraft

Creator:: Cordisco, Jonathan
Abstract:: Visitors to waterways need a way to securely lock up their non-motorized watercrafts to allow for exploration of the local area and communities. The Willamette Water Trail Steering committee recognized this problem and approached the Oregon State University Prototype Development lab to develop and fabricate a solution. The engineering design...
Resource Type:: Honors College Thesis
Full Text:: Fabrication of a Public Locker for Non-Motorized Watercraft Abstract approved: John Parmigiani Visitors to

Synthetic Lubricant Performance in Enclosed Gearbox Applications at Extreme Temperature

Creator:: Marr, Carter J.
Abstract:: The goal of this paper is to evaluate how synthetic lubricants perform in an enclosed gearbox application when compared with a proven mineral oil. This is in an effort to improve gearbox efficiency with the desired effect of lower emissions from of improved energy output from power generation. Four liquid...
Resource Type:: Masters Thesis
Full Text:: Lubricant Performance in Enclosed Gearbox Applications at Extreme Temperature Abstract approved: John

Improved Lubrication Performance of Chainsaw Cutting Systems

Creator:: Sellars, Patrick V.
Abstract:: Chainsaws serve as one of the primary tools used by logging corporations, ranches, and farms for forestry management. Lubricating oil remains one of the heaviest operational expenditures for chainsaws. This largely in part due to chainsaw lubrication being a total loss system in which nearly all lubricating oil applied is...
Resource Type:: Masters Thesis
Full Text:: Lubrication Performance of Chainsaw Cutting Systems. Abstract approved: John Parmigiani Chainsaws serve as

Experimental characterization of saw chain cutting performance

Creator:: Otto, Andrew W.
Abstract:: Chainsaw users value cutting performance and safety. Knowledge of the forces exerted during sawing are necessary to understand and improve the cutting performance of saw chain. Additionally, cutting forces can be used to form metrics for evaluating performance tradeoffs when using a safety (i.e. low-kickback) saw chain versus a standard...
Resource Type:: Masters Thesis
Full Text:: : __________________________________________________________________ John P. Parmigiani Chainsaw users value cutting performance and safety. Knowledge of

Combustion gas emissions spectra of Otto cycle engine operating on H₂, CO, and gasoline using a calibrated vidicon detector spectrometer

Creator:: Freeburn, Scott Alan
Abstract:: The capabilities of the Tektronix Model J2C/7J20 Rapid Scanning Spectrometer for the determination of molecular species resulting from Otto cycle combustion were experimentally investigated after a literature search of the subject area. Combustion of hydrogen-air, carbon monoxideair, and gasoline-air mixtures in the combustion chamber of a Cooperative Fuel Research engine...
Resource Type:: Masters Thesis
Full Text:: John G. Mitre The capabilities of the Tektronix Model J2C/7J20 Rapid Scanning Spectrometer for the

Creep strength of aluminum alloy conductor

Creator:: Gerard, Thomas John
Resource Type:: Masters Thesis
Full Text:: STRENGTH OF ALUMINUM ALLOY CONDUCTOR by Thomas John Gerard A THESIS submitted to OREGON STATE

Development and design of veneer scarfing machinery

Creator:: Pearl, John Joseph
Resource Type:: Masters Thesis
Full Text:: AND DFIGN OF VTNDR SOART'ING Nk.CHINLI by JOhN JOSEPH PEARL A TNDSIS Slthflittr3d to

Analysis of airline operating costs and revenues

Creator:: Wintler, John Townsend
Resource Type:: Masters Thesis
Full Text:: OF AIRLINE OPERATING COSTS AND REVENUES by JOHN TOWNSEND WTLER A THISIS submitted to

Production of uniform condensation from saturated air flow in cooled porous media

Creator:: Postlewaite, John Edwin
Resource Type:: Masters Thesis
Full Text:: POROUS I'4EDIA JOHN E1IN POSTLEWAITE A THESIS submitted to OREGON STATE UN flrERS ITY in

Modern railway motive power trends in the West

Creator:: Rutherglen, John Alfred
Resource Type:: Masters Thesis
Full Text:: RAiLWAY MOTIYi POWER TRJD8 IN THE WEST by JOHN ALFRED RUTHE ROLEN à THESIS submitted to OREGON

Mixture control testing of a spark-ignition engine with anti-detonant admission

Creator:: Mingle, John Glenn
Resource Type:: Masters Thesis
Full Text:: tor-que-meaßurin devices. It is estimated that error is lese than one per cent. FUEL-CONSUMPTION

Creep studies on Pheasant, Narcissus and Chukar aluminum conductors

Creator:: Patton, John Dennis
Abstract:: This thesis is an engineering report on the creep behavior of power transmission line conductors. Laboratory creep test results are reported for Pheasant, Narcissus and Chukar conductors. The report follows a standard nomenclature and format suggested by the International Study Committee No. 6 of Conference Internationale des Grands Reseaux Electriques...
Resource Type:: Masters Thesis
Full Text:: Conductors AN ABSTRACT OF THE THESIS OF JOHN D. PATTON for the M. S. (Name) (Degree) Mechanical

Response of guyed offshore towers to stochastic loads in the presence of steady current

Creator:: Brynjolfsson, Sigurdur
Abstract:: The validity of the widely used stochastic linearization method for analysing the response of guyed towers to stochastic loads is investigated. The governing equations of a guyed tower have two main sources of nonlinearities, fluid-structure interaction and the restoring force of the cables. In this study, two models are considered....
Resource Type:: Dissertation
Full Text:: OFFSHORE TOWERS TO STOCHASTIC LOADS IN THE PRESENCE OF STEADY / Redacted tor Privacy Abstract approved

Design considerations for a miniature atmospheric engine with a magnet-actuated autonomously-reciprocating in-cylinder regenerator for portable power production

Creator:: Yarger, David J.
Abstract:: Driven by the need for high energy-density power sources, demand has stimulated the development of small-scale engines. A small-scale engine with a fuel supply could replace batteries and utilize higher energy-density liquid hydrocarbon fuels; such an advance could deliver a new age of portable devices. Currently, operable small-scale engines exist;...
Resource Type:: Masters Thesis
Full Text:: . His is a gift I will carry through life. Dr. John Lee taught me how to properly write mathematics

Design and Testing of a Tethered, Coaxial Rotor Micro Air Vehicle

Creator:: Shryer, Jacob R.
Abstract:: Unmanned Aerial System (UAS) technology is a rapidly developing technological marketspace. This thesis focuses on micro, tethered, coaxial UASs and the development of an electrically-tethered observation platform (ETOP). The thesis details the current status of the technology as well as current products on the market. Stability considerations, critical when adding...
Resource Type:: Honors College Thesis
Full Text:: Engineering John Selker, Committee Member, representing Biological and Ecological Engineering, Col- lege of

Analysis of ice formation with flow reversal for application to an ice-maker heat pump

Creator:: Aceves, Salvador M.
Abstract:: The problems of freezing and melting present special mathematical complexity and, except for the most elementary one-dimensional cases, require a numerical solution. However, these problems have a growing importance in engineering problems because of their application to metallurgical operations, food preservation, heating and air conditioning, etc. In the present work,...
Resource Type:: Masters Thesis
Full Text:: Davis and Dr. John Peterson. I also want to thank Dr. James Welty and Dr. Arturo Lara, to whom I owe

Effect of hydrous ethanol on crankcase oil dilution

Creator:: Khalifa, Gamaleldin A.
Abstract:: Adequate lubrication is of the utmost importance in internal combustion engines. Low temperature operation with low-proof alcohol may create some operational problems if alcohol and or water accumulates in the crankcase oil. Condensates of unburned alcohol and water may be blown into the crankcase oil with blow by gases. The...
Resource Type:: Dissertation
Full Text:: , Professor Larry Slotta and Professor John Mingle for their kind help and assistance. I would like to

Pre-Prototyping Framework: An Early Design Prototyping Methodology for Human-Centered Products and Workplaces

Creator:: Ahmed, Salman
Abstract:: Prototyping is a crucial step in product design and development, but it is also known as the highest sunk cost. The top 20 Research and Development (R&D) department spends 142 billion dollars, yet 40 to 46 percent of this money goes into developing products that cannot even make to the...
Resource Type:: Dissertation

Systematic design of biologically-inspired engineering solutions

Creator:: Nagel, Jacquelyn Kay
Abstract:: Biological organisms, phenomena and strategies, herein referred to as biological systems, provide a rich set of analogies that can be used to inspire engineering innovation. Biologically-inspired, or biomimetic, designs are publicly viewed as creative and novel solutions to human problems. Moreover, some biomimetic designs have become so commonplace that it...
Resource Type:: Dissertation
Full Text:: been possible. I would like to express my sincere appreciation to my committee members, Dr. John

Creep of Gr/BMI composite laminates in compression

Creator:: Tyagi, Sanjeev R.
Abstract:: The main source of the time-dependent behavior of fiber-reinforced composites is their polymeric matrix, which causes concerns about their long term durability. Although for composites where organic fibers such as Graphite are used, the fibers are also a contributing factor. A composite material may exhibit an appreciable amount of creep,...
Resource Type:: Masters Thesis

A thermodynamic study of energy absorbed by a motored four cycle engine with positive exhaust pressure as applied to commercial exhaust brakes

Creator:: Thompson, Ralph Allen
Resource Type:: Masters Thesis
Full Text:: UNIVERSITY in partial fulfillment ot the requirement• tor the degree of MASTER OF SCIENCE June 1962

Mechanical and stress-optical properties of photoelastic materials

Creator:: Teshima, Yoshio
Resource Type:: Masters Thesis
Full Text:: • • • • • • • • • • • • • 66 18. Optical Creep Test for Laminae 4116-4134 Cured tor 6 Hours at 150 F ••••••••••••• 67 19

Biaxial fatigue behavior of commercially pure titanium Ti-50A (Grade 2) and low-alloy titanium Ti-Code 12 (Grade 12) heat exchanger materials

Creator:: Tobias, Benjamin C.
Abstract:: Material failures in heat exchangers are often closely tied to events associated with the conditions of service and operating parameters. These events can generally be attributed to adverse load application and higher than optimum operating temperatures that could lead to changes in the microstructure of the materials and fatigue failure...
Resource Type:: Dissertation
Full Text:: - symmetrically with a combination of push-pull and tor- sional moment so that a biaxial state of stress was im

A model reference adaptive system for control of a flexible mechanical manipulator

Creator:: Lee, Byeung Kyun
Abstract:: For control of a flexible manipulator, the assumed- mode method is applied to the mathematical model of the model reference adaptive system. In the assumed-mode method, the flexible, continuous manipulator is described by a limited number of degrees of freedom. A modified model reference adaptive system is studied for direct...
Resource Type:: Dissertation
Full Text:: manipula- tor is described by a limited number of degrees of freedom. A modified model reference adaptive

Repeated stress tests on carbon steels variously heat treated

Creator:: Morris, Homer Blair
Resource Type:: Masters Thesis
Full Text:: sto1. Tor the first aïìd second ann3a1ins tha number of 1macts necessar' for rupture shov. n

Simplified method of determining the acoustical coefficient of absorption of materials

Creator:: Lind, Edward Raymond
Resource Type:: Masters Thesis
Full Text:: absorption. This is a coripsrison method, comparin, the meter reading tor an unknown sample with the

System of zirconium-tantalum alloys zirconium rich portion

Creator:: Kleint, Roderic Emil
Resource Type:: Masters Thesis
Full Text:: . Dilatometric Analysis Dilation vs temperature curves were obtained tor alloys lbb and 167. Lack of the

Investigation of plutonium-bearing fuel elements for the plutonium recycle test reactor (PRTR)

Creator:: Bailey, Wendell Jack
Resource Type:: Masters Thesis
Full Text:: PRTR caJ.ls for the insertion of 48-6o nstural u~ fuel assemblies tor the first :fuel loading, plus

The conversion of solar radiation to heat energy using a trough-type parabolic mirror

Creator:: Mackie, Keith Leroy
Resource Type:: Masters Thesis
Full Text:: , p. 1349). John Ericcson erected a parabolic trough -type collector in New York, in 1883. Iron

The effect of a canard surface on the total lift of an unswept wing in subsonic flow

Creator:: Rasmussen, Maurice Lee
Resource Type:: Masters Thesis
Full Text:: x-r, since x occurs only in tue deno:4na- tor of 4.LJx By exanining the integral of the terras R

Modeling, simulation, and analysis of two hydraulic power take-off systems for wave energy conversion

Creator:: Casey, Sean (Sean Michael)
Abstract:: Hydraulic power take-off (PTO) systems have been implemented in several wave energy converter (WEC) designs in recent years. Two popular hydraulic PTO configurations coupled to a point absorber hydrodynamic model are simulated in waves representative of an energetic sea state likely to be found in deep waters off the coast...
Resource Type:: Masters Thesis

Comparison of European and American heavy machinery design, manufacturing, and economics influencing licensing agreements

Creator:: Gayer, George Frederick William
Resource Type:: Masters Thesis
Full Text:: I INrRODUJTION Two yoar8 ago the r1ter, aa Chief' 1ng1ier, acoompan1d John M:Cor, President of

Intergranular corrosion and diffusion in 24S aluminum alloy sheet as related to heat treatment

Creator:: Arents, Chester Abbo
Resource Type:: Masters Thesis
Full Text:: temperature tor a period of time to bring about a solid solution of the alloying constituents followed by

A multichannel single frequency radio control system

Creator:: Hugelman, Rodney Dale
Resource Type:: Masters Thesis
Full Text:: 17 shows the schematic diararn tor the decoder circuit. Since the transmitter and receiver units

On the lyapunov-based approach to robustness bounds

Creator:: Jo, Jang Hyen
Abstract:: The objective of this investigation is the development of improved techniques for the estimation of robustness for dynamic systems with structured uncertainties, a problem which was approached by application of the Lyapunov direct method. This thesis considers the sign properties of the Lyapunov function derivative integrated along finite intervals of...
Resource Type:: Dissertation
Full Text:: (n x n dimensional vec- tor) and A is an n x n constant nonsingular ma- trix. It is a necessary and

Optimization Across Decomposition : A Multiagent Model of Collaboration in Decomposed System Design

Creator:: Hulse, Daniel E.
Abstract:: Complex engineered systems design is a collaborative activity. To design a system, experts from the relevant disciplines must work together to create the best overall system from their individual components. This situation is analogous to a multiagent system in which agents solve individual parts of a larger problem. Current multiagent...
Resource Type:: Masters Thesis
Full Text:: experts, guided by a facilita- tor, design a complex engineered system over the course of a few three

The use of a Stirling hot-air engine in converting solar energy to mechanical power

Creator:: Boehme, Martin Leon
Resource Type:: Masters Thesis
Full Text:: . Processes are beine sought which will produce fresh water in this way tor less than one dollar per

Exploring experimental test stand design and operation within a system reliability research methodology

Creator:: Koopmans, Michael, 1986-
Abstract:: In cases where complex systems routinely experience extreme operating conditions, preventative maintenance is often employed to guard against system failure. Yet, with accessible real-time data and the standard practice becoming prohibitively expensive, the test stand can serve as a vital contributor to the development of system health and reliability estimations....
Resource Type:: Masters Thesis
Full Text:: ARW environment, the actual failure rates were multiplied by the appropriate fac- tor. However, the

Generalized Preconditioning to Accelerate Simulations with Large Multiphase Chemical Kinetics Models

Creator:: Walker, Anthony S.
Abstract:: Combustion emissions produced from burning real transportation fuels have many environmental impacts. However, detailed chemistry across multiple phases, time scales, and thermodynamic conditions make predicting combustion emissions challenging. Detailed modeling of the gas phase alone is prohibitively expensive, due to the large size and stiffness of the kinetic models. The...
Resource Type:: Dissertation
Full Text:: ]. We apply our extended method on ideal gas, constant-pressure reac- tor simulations, with the goal of

Achieving Transparency in Human-Collective Systems

Creator:: Roundtree, Karina A.
Abstract:: Collective robotic systems are biologically-inspired and exhibit behaviors found in spatial swarms (e.g., fish), colonies (e.g., ants), or a combination of both (e.g., bees). Collective robotic system popularity continues to increase due to their apparent global intelligence and emergent behaviors. Many applications can benefit from the incorporation of collectives, including...
Resource Type:: Dissertation

The determination of ignition temperatures of organic materials

Creator:: Adams, Edward Erick
Resource Type:: Masters Thesis
Full Text:: the thesis, t'An Apparatus tor Determining the Ignition Temperatures ot Organic Substances," by

Normal modes in nonlinear nonsymmetrical systems with two degrees of freedom, and applications to air springs

Creator:: Moustafa, Mahmoud Abd-Elfattah
Abstract:: The study of nonlinear vibrations of systems having two degrees of freedom has met considerable attention during the past few years. Nonlinear symmetrical systems have received most of it. Normal mode motion of a system is defined as a periodic motion such that the masses of the system assume repeated...
Resource Type:: Dissertation
Full Text:: parLial fulfillment of t:he requirements for the degree of DOC TOR OF PHILOSOPHY Augus t L964

A framework to model reliability and failures in complex systems during the early engineering design process

Creator:: O'Halloran, Bryan M.
Abstract:: An open area of research in complex systems is to move reliability and failure assessments earlier in the engineering design process. When compared to later design, early decisions are cost effective and have a large impact on the system. Standard methods are limited by the availability of data and often...
Resource Type:: Dissertation

Testing and design procedures for electric propellant pumps for suborbital bi-propellant rockets

Creator:: Verna-Ketel, Dominic
Abstract:: An electrically driven propellant pump (HALE E-Pump) was analysed and tested to determine its viability for use in a bi-propellant launch vehicle for the High-Altitude Liquid Engine (HALE) student rocket team at Oregon State University (OSU). The pump, manufactured in 2022 by students in OSU machine shops, was hydrostatically tested...
Resource Type:: Honors College Thesis
Full Text:: 6: Conclusion It was determined through hydrostatic testing that the space between the mo- tor and

Heat utilization in a sewage disposal plant

Creator:: Peterson, Roy Stanley
Resource Type:: Masters Thesis
Full Text:: waste heat, supply heat with water in coils or by use of heat exchangers, electric mo-tor

Pure torsion of a slotted channel member

Creator:: Benedetti, Gerald Andrew
Resource Type:: Masters Thesis
Full Text:: The fourth assumption made in deriving the non-uniform tor sion equation (see p. 17 ) implies that

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:: . John R. Kellogg and Mr. David G. Goodrich is gratefully acknowledged. The Marshall controller used

Feasibility study of a surface vehicle utilizing a unitary control system

Creator:: Bassett, David Arthur
Abstract:: A feasibility and practicality study was made of an automotive-type surface vehicle that employed a centralized or unitized means of control. The control functions consisted of: steering, acceleration, deceleration, clutch actuation, gear changes, turn signal operation and horn actuation. These controls were arranged in such a manner that the driver...
Resource Type:: Masters Thesis
Full Text:: . illustration of vehicle parameters. 150 1. 022 Path //--tor z / O a 75 O. 512 Ay, ft Final tract

Modeling and optimization of a combined cycle Stirling-ORC system and design of an integrated microchannel Stirling heat rejector

Creator:: Ingram-Goble, Robbie
Abstract:: The performance of a combined Stirling-ORC power cycle is evaluated, and an integrated microchannel heat exchanger is designed as an annular cold-side heat rejector for a free piston Stirling engine. Reasonable designs for a combined cycle can increased power output efficiency by 3 - 9% compared to that of a...
Resource Type:: Masters Thesis

Numerical analysis of liquid cooling by natural convection for heated protusions simulating vertical plate-mounted electronic components facing an opposing plate

Creator:: Park, Sung-kwan
Resource Type:: Dissertation

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