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Filtering by: Creator True, K. Remove constraint Creator: True, K. Degree Field Mechanical Engineering Remove constraint Degree Field: Mechanical Engineering

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  • Development of a singulation device for stonefly larva

    Creator:
    Williams, Kate S. (Kate Shreeve)
    Abstract:
    Population counts of aquatic insects can be a credible indicator of the overall health of a waterway. Stonefly (Plecoptera) larva are very sensitive to chemicals present within the waterway, however obtaining population counts of the larvae can be very labor intensive and thus costly. The BugID project has been working...
    Resource Type:
    Masters Thesis
    Full Text:
    : ______________________________________________ Robert K. Paasch Population counts of aquatic insects can be a credible indicator of the

  • Monitoring and diagnosis of a multi-stage manufacturing process using Bayesian networks

    Creator:
    Wolbrecht, Eric T.
    Abstract:
    This thesis describes the application of Bayesian networks for monitoring and diagnosis of a multi-stage manufacturing process, specifically a high speed production part at Hewlett Packard. Bayesian network "part models" were designed to represent individual parts in-process. These were combined to form a "process model", which is a Bayesian network...
    Resource Type:
    Masters Thesis
    Full Text:
    probability of variable B having state True may be more likely if the variable A has state True and the

  • Optimal troubleshooting plan for a complex electro-mechanical system

    Creator:
    Durgi, Parthsarathy
    Abstract:
    The decision sequences used for troubleshooting of complex electro-mechanical systems are often ad hoc and less than optimal. This research investigated Decision Analysis and Bayesian Networks for generating an optimal decision sequence for troubleshooting. The model that was used in this research was the bleed air control system of the...
    Resource Type:
    Masters Thesis
    Full Text:
    Troubleshooting Plan for a Complex Elerctro-Mechanical System Abstract approved: Robert K. Paasch The decision

  • 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:
    : Robert K. Paasch Several standardized courses for Formula SAE (FSAE) testing are introduced and

  • High cycle fatigue modeling and analysis for deck floor truss connection details

    Creator:
    DePiero, Anthony H.
    Abstract:
    The Oregon Department of Transportation is responsible for many steel deck truss bridges containing connection details that are fatigue prone. A typical bridge, the Winchester Bridge in Roseburg, Oregon, was analyzed to assess the loading conditions, stress levels, and fatigue life of the connection details. The analysis included linear-elastic beam...
    Resource Type:
    Masters Thesis
    Full Text:
    Analysis for Deck Floor Truss Connection Details. Abstract approved: Robert K. Paasch The Oregon

  • Design of an automated system for imaging and sorting soil mesofauna

    Creator:
    Chamblin, Mike A.
    Abstract:
    Identification and population counts of soil mesofauna can be an important tool for soil ecologists to determine the soil biodiversity. Information provided from population counts can give insight to soil ecologists about the effects of human land use, monitoring soil and water health, benefits of soil biodiversity in agriculture, and...
    Resource Type:
    Masters Thesis
    Full Text:
    : Robert K. Paasch Identification and population counts of soil mesofauna can be an important tool

  • Simulation Automation for the Evaluation of Formula Student Aerodynamic Concepts

    Creator:
    Sanchez, Adrian
    Abstract:
    The design of a competition-winning aero package must consider multiple vehicle attitudes. Aerodynamic concepts simulated in heave, pitch, roll, high-speed yaw, and low-speed yaw to design a stable and predictable aero package. The methodology automates the simulation setup process of five vehicle attitudes. The overall and subsystem force coefficients are...
    Resource Type:
    Masters Thesis
    Full Text:
    for the Evaluation of Formula Student Aerodynamic Concepts Abstract approved: Robert K. Paasch

  • Drilling process evaluation by predicting drilled hole quality and drill bit wear with on-line acoustic emission signals

    Creator:
    Wang, Kuang-Jen, 1962-
    Abstract:
    Improvement of manufacturing productivity is dependent on the successful automation of manufacturing processes, the success of which is based in turn upon the availability of information which describes the state of manufacturing operations. Acoustic Emission (AE) signals related to the cutting process and tool wear have been recently applied to...
    Resource Type:
    Dissertation
    Full Text:
    . Abstract approved: Robert K. Paasch Improvement of manufacturing productivity is dependent on the

  • An experimental approach to analyze large notched composite panels loaded in out-of-plane shear

    Creator:
    Froemming, Tyler M.
    Abstract:
    Identifying material characteristics of composites is important in designing any structural system. The aerospace industry relies on these material properties not only to design a functional aircraft, but also a safe and reliable one. Since carbon fiber composites are relatively new materials, little is known about its characteristics under certain...
    Resource Type:
    Masters Thesis
    Full Text:
    : _______________________________________________________________________ Brian K. Bay Identifying material characteristics of composites is important in

  • Analysis, testing, and redesign of an environmental control system for an engine dynamometer

    Creator:
    Morris, Taylor H.
    Abstract:
    This project analyzes, tests, and redesigns an environmental control system for Global Formula Racing’s (GFR) dynamometer. It seeks to develop a working system to test GFR’s car engine under air conditions similar to those faced during competition. A model is developed to predict the performance of the environmental control system,...
    Resource Type:
    Honors College Thesis
    Full Text:
    : ______________________________________________________ Robert K. Paasch This project analyzes, tests, and redesigns an environmental control

  • Multi Objective Aerodynamic Design in Formula SAE

    Creator:
    Arscott, Phillip J.
    Abstract:
    This thesis examines the effect of aerodynamics on Formula SAE cars. Due to the different objectives of the Formula SAE events, an understanding of the car's complete aerodynamic design is necessary. Using a half car computational fluid dynamics (CFD) model, a series of sensitivity studies are conducted to determine trends...
    Resource Type:
    Masters Thesis
    Full Text:
    Abstract approved: ______________________________________________________ Robert K. Paasch This

  • Race Car Monocoque Design? A Loaded Question Suspension Kinematics, Loads & Sandwich Panel Optimization Methodologies

    Creator:
    Gray, Gabriel M.
    Abstract:
    As designers continue to develop the ability to improve a component or system design relative to any number of metrics, priorities and objectives, the need for advanced methodologies which focus efforts and steer design decisions to best meet the needs of the organization becomes increasingly important. This work develops such...
    Resource Type:
    Masters Thesis
    Full Text:
    : ______________________________________________________ Robert K. Paasch As designers continue to develop the ability to improve a component or

  • Evaluation of failure diagnosis in conceptual design of mechanical systems

    Creator:
    Ruff, David N.
    Abstract:
    A methodology for improving quality and reducing life cycle costs of mechanical systems is described. The principal concept is that a system can be designed, in the conceptual stages, to be easier to diagnose for failures. To perform this, functional decomposition and form to function mapping are utilized both as...
    Resource Type:
    Masters Thesis
    Full Text:
    Design of Mechanical Systems Redacted for Privacy Abstract approved: Robert K. Paasch A

  • In-Situ Stereo Vision Metrology for Metal Powder Bed Fusion Additive Manufacturing

    Creator:
    Mosher, Daniel P.
    Abstract:
    Powder Bed Fusion (PBF) techniques are additive manufacturing (AM) technologies with paradigm-shifting potential for the production industry. However, before they can become viable production solutions for quality critical industries, issues with process consistency and repeatability need to be addressed. There is a need for in-situ sensing systems that characterize process...
    Resource Type:
    Dissertation
    Full Text:
    . Abstract approved: ______________________________________________________________________ Brian K. Bay

  • Implementation and evaluation of a participating media radiation model in the TEMPEST thermal-hydraulic computer code

    Creator:
    Rector, David R.
    Abstract:
    In this work, a method for solving the differential form of the radiative transfer equation was implemented into an existing three-dimensional thermal-hydraulic computer program known as TEMPEST. The method used was the P-l approximation, where the angular distribution of the radiation intensity is represented by a truncated series of spherical...
    Resource Type:
    Masters Thesis
    Full Text:
    Code Abstract approved: Redacted for Privacy Dennis K. Kreid In this work, a method for solving the

  • Mechanical characterization of a simple gel in a prototype device that models a degenerative intervertebral disc

    Creator:
    Cenar, Yannick
    Abstract:
    A large part of low-back pain occurrences are due to disc herniation or prolapse of the nucleus pulposus. An alternative technique to existing treatments of low back pain includes nucleus pulposus replacement by an artificial material to relieve pain and restore normal function. To date, there has been a deficiency...
    Resource Type:
    Masters Thesis
    Full Text:
    Intervertebral Disc. Abstract approved: Brian K. Bay A large part of low-back pain occurrences

  • Utilizing the thermodynamic properties of E85 to increase the specific efficiency of a high specific output single cylinder Formula SAE engine

    Creator:
    Duncan, Derek N.
    Abstract:
    Formula SAE is a collegiate engineering competition that has participants from around the globe. Of the 1000 points available throughout the event, 100 (10%) are dedicated to the fuel efficiency of the student built race cars. Competition rules allow either gasoline or E85, a mix of 85% ethanol and 15%...
    Resource Type:
    Masters Thesis
    Full Text:
    : ______________________________________________________ Robert K. Paasch Formula SAE is a collegiate engineering competition that has participants

  • Engineering Design Matrix for Carbon Fiber Monocoque Chassis Selection

    Creator:
    Zuck, Austin L.
    Abstract:
    The Formula Society of Automotive Engineers (FSAE) has provided a platform for teams like Oregon State’s own Global Formula Racing Team (GFR) to produce a formula style race car and compete with other schools across the world. The GFR team has used the same carbon fiber monocoque chassis since the...
    Resource Type:
    Honors College Thesis
    Full Text:
    : ______________________________________________________________________ Robert K. Paasch The Formula Society of Automotive Engineers (FSAE) has provided a

  • Practical application of steady-state 6-DoF aerodynamic model for vehicle system loads analysis

    Creator:
    Torris, Connor J.
    Abstract:
    This work develops the Global Formula Racing computational fluid dynamics (CFD) model in StarCCM+ to allow for vehicle attitude studies to be ran to evaluate Formula Student (FS) vehicle aerodynamic loads. Attitudes that this model allows to be studied include roll, pitch, yaw, heave, tire angle, and vehicle speed. The...
    Resource Type:
    Masters Thesis
    Full Text:
    Abstract approved: ______________________________________________________ Robert K. Paasch

  • The Design, Manufacturing, and Testing of the 2014 Side-Pods for the Global Formula Racing Vehicle

    Creator:
    Volk, Austin R.
    Abstract:
    For many years, engine overhearing has been the major cause for vehicle breakdowns and engine malfunctions for most teams in Endurance events at Formula Society of Automotive Engineers (FSAE) Series competitions. Additionally, with a growing importance of aerodynamics to the overall success of the Global Formula Racing at these events,...
    Resource Type:
    Honors College Thesis
    Full Text:
    : ______________________________________________________ Robert K. Paasch For many years, engine overhearing has been the major cause for