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Filtering by: Committee Member Paasch, Robert Remove constraint Committee Member: Paasch, Robert Degree Field Mechanical Engineering Remove constraint Degree Field: Mechanical Engineering

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  • A design framework for identifying automation opportunities

    Creator:
    Nagel, Robert Lewis, 1982-
    Abstract:
    Since the Industrial Revolution, automated systems have increasingly become a part of everyday life. Automated systems range in scale and scope from simple assists to complete robotic replacements. Inexpensive integrated circuits, sensors and microprocessors have allowed automated systems to become smaller, cheaper and more prevalent. Identifying appropriate opportunities for automation,...
    Resource Type:
    Dissertation
    Full Text:
    Opportunities AN ABSTRACT OF THE DISSERTATION OF Robert Lewis Nagel for the degree of Doctor of Philosophy

  • A methodology for iterative design using physical test data

    Creator:
    Morris, Wesley T.
    Abstract:
    This thesis addresses a common knowledge gap that was identified amongst the Society of Automotive Engineers (SAE) competition design teams at Oregon State University. Students that join the SAE teams at Oregon State University typically do not have experience using physically collected data during a design process. This leads to...
    Resource Type:
    Masters Thesis
    Full Text:
    them and their ideals, this would not have been possible. I would like to thank Dr. Robert

  • A study of cavitation instabilities in solids

    Creator:
    Puttapitukporn, Tumrong
    Abstract:
    Cavitation instabilities in elastic-plastic solids under spherically-symmetric and axisymmetric loadings were investigated using the finite element method. Both quasi-static and dynamic analyses were used to solve these problems. In the quasi-static analyses, we investigated a cavitation instability in elastic/perfectly-plastic, linear hardening elastic-plastic, power hardening elasticplastic, and constrained silver materials. Here,...
    Resource Type:
    Dissertation
    Full Text:
    ., Professor Yim, Solomon C. S., Associate Professor Paasch, Robert K. and Associate Professor Gupta, Rakesh

  • Adaptive methods for robust commercial vehicle control

    Creator:
    Junell, Jaime L.
    Abstract:
    This thesis explores the implementation of learning based control with predictive cruise control and the potential this technology has for increasing fuel efficiency while keeping on a well maintained schedule for commercial trucks. Traditional cruise control is wasteful when maintaining a constant velocity over rolling hills. Predictive cruise control is...
    Resource Type:
    Masters Thesis

  • Automated Tradeoff Analysis of Cost Versus Machinability for Design Feedback

    Creator:
    Grier, Alan Thomas
    Abstract:
    As CAD tools become more sophisticated, engineers are able to more easily create complex part geometries with minimal mass given strength and stiffness requirements. However, these complex part geometries can be difficult to subtractively manufacture, which consequently increases manufacturing cost and production time. This thesis presents a method independent of...
    Resource Type:
    Masters Thesis
    Full Text:
    to Profs. Karl Haapala, Bob Paasch, and Wade Marcum for serving on my thesis committee and providing

  • Comparing and Contrasting the Merits of Additive Manufactured Electric Vehicle Suspension Components: GFR Case Study

    Creator:
    Peraza-Garcia, Jesus
    Abstract:
    This thesis compares the implementation of additive manufactured suspension uprights against subtractive manufactured suspension uprights from concept generation, design, and validation through simulation. Additive manufactured suspension uprights were designed for Global Formula Racing’s 2023 electric vehicle. Utilizing Siemens NX, Nastran, Fusion 360, and Ansys Workbench both subtractive and additive manufactured...
    Resource Type:
    Masters Thesis

  • Design analysis using function-based failure propagation in failed system states

    Creator:
    Jensen, David Charles
    Abstract:
    For safety critical complex systems, reliability and risk analysis are important design steps. Implementing these analyzes early in the design stage can reduce costs associated with redesign and provide important information on design viability. In the past several years, various research methods have been presented in the design community to...
    Resource Type:
    Masters Thesis

  • Design, modeling, and performance of miniature reciprocating thermocompressor

    Creator:
    Edwards, Michael J.
    Abstract:
    Research in the miniaturization of thermomechanical systems in recent years has proven to be both rewarding and challenging. Micro-scale devices have tremendous technological potential but come with a new set of design problems. One such problem is energy storage. Heat actuated systems, driven primarily by thermal energy, take advantage of...
    Resource Type:
    Masters Thesis
    Full Text:
    readily available and supportive. I would like to thank my committee members Kevin Drost, Robert

  • 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

  • Distortion-induced fatigue cracking of girder-to-crossbeam connection

    Creator:
    Aljutaili, Dhari S.
    Abstract:
    Oregon Department of Transportation’s bridge no. 9743b is a multi-span, two-girder steel deck bridge connecting the busy interstates 5 and 205. Vertical cracks have been detected in the welded girder-to-crossbeam connections at the bents. Distortion-induced fatigue is suspected to be responsible for the cracking. Linear elastic beam analysis, 2-D and...
    Resource Type:
    Masters Thesis
    Full Text:
    -to-Crossbeam Connection. Abstract approved: Robert K. Paasch Oregon