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Filtering by: Dspace Collection Electronic Theses and Dissertations Remove constraint Dspace Collection: Electronic Theses and Dissertations Committee Member Mullet, Kathy Remove constraint Committee Member: Mullet, Kathy Degree Field Mechanical Engineering Remove constraint Degree Field: Mechanical Engineering

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  • How personality affects creativity in concept ideation

    Creator:
    Berthelsdorf, Friederich A.
    Abstract:
    This thesis uses the manuscript option, and consists of a previously-published paper and a paper that has been accepted for publication. Manuscript One details an independent confirmatory study to Choo et al. (2014), which demonstrated that correlations exist between personality type and the outcome of concept ideation methods. This is...
    Resource Type:
    Masters Thesis
    Full Text:
    manuscripts are presented – one published and one accepted for publication. These detail research findings

  • Ontologies to Support Repeatable and Valid Customer Requirements Generation

    Creator:
    Lemke, Mark T.
    Abstract:
    Due to the growing complexity, sophistication, and interconnectedness of present day engineered products and services, the use of ontologies in engineering design is becoming more widespread. An ontology provides a standardized way of describing concepts in a domain of interest and the relationships between these concepts to better understand the...
    Resource Type:
    Masters Thesis
    Full Text:
    interest and the relationships between these concepts to better understand the domain as a whole. The

  • Design of Complex Engineered Systems Using Multiagent Coordination

    Creator:
    Soria Zurita, Nicolás Francisco
    Abstract:
    This thesis is the combination of two research publications working toward a unified strategy in which the design of complex engineered systems can be completed using a multiagent coordination approach. Current engineered system modeling techniques segment large complex models into multiple groups to be simulated independently. These methods restrict the...
    Resource Type:
    Masters Thesis
    Full Text:
    structure that is dependent on individuals belonging to and interacting with multiple groups may make these

  • Reverse engineering, modeling, and redesign of a vibratory conveyor

    Creator:
    Foglesong, Timothy J.
    Abstract:
    Some successful products are still developed and produced without the benefit of modern design techniques. One such product is a vibratory conveyor that has been developed largely through prototype iteration. The manufacturer has collaborated with Oregon State University to introduce model-based design into the development process. This research details a...
    Resource Type:
    Masters Thesis
    Full Text:
    these differences in mind, we will apply aspects of both approaches in the framework and case study

  • Grasping complex casting shapes with an underactuated parallel jaw gripper on an industrial robot

    Creator:
    Carpenter, Ryan Joseph
    Abstract:
    Steel foundries are in great need of automation as current operations involve many hazardous manual tasks. Automating foundry operations is very challenging due to the variety of tasks that must be performed on physical objects that vary significantly in size, shape, and weight. This thesis focuses on robotically automating the...
    Resource Type:
    Masters Thesis
    Full Text:
    costs competitive and workers safe. To capture this gain in both effi- ciency and safety, many of these

  • A framework for assessing and improving the resilience of complex engineered systems during the early design process

    Creator:
    Mehrpouyan, Hoda
    Abstract:
    As modern systems continue to increase in size and complexity, they pose significant safety and risk management challenges. System engineers and much of the government research efforts are focused on understanding the attributes and characteristics that emerge from the interactions of components and subsystems. As a result, the objective of...
    Resource Type:
    Dissertation
    Full Text:
    necessary encouragement and nurturing throughout my life. This dissertation is written in memory of my

  • Design and performance of a small scale waste heat recovery unit

    Creator:
    Ward, Christopher
    Abstract:
    A microchannel heat exchanger was designed for diesel waste heat recovery and its performance was evaluated. The 21x15x8 cm unit was constructed from diffusion brazed stainless steel lamina and weighed 11 kg. Operating from a 13.4 kW generator with an exhaust temperature of 500 °C the unit delivered 11.1 kW...
    Resource Type:
    Masters Thesis
    Full Text:
    gradients and higher heat transfer per unit volume. These concepts are explored in more detail in the

  • Clearing bubble blockages in micro channels using a model predictive controller

    Creator:
    Patton, Chris
    Abstract:
    Micro scale systems are being utilized in a wide variety of chemical, biological and heat exchanger applications, but suffer from the development of vapor bubbles inside the microchannels due to convective boiling, leading to decreases in system performance. In this work, a simulation-based control strategy is employed to eliminate flow...
    Resource Type:
    Masters Thesis
    Full Text:
    moveable objects are identified, and the fluid in these cells is made to behave like a solid object or a

  • Modeling innovativeness in consumer products with the influence of environmental sustainability

    Creator:
    Gilchrist, Brady
    Abstract:
    This thesis is the result of two research publications, which together form a framework for the evaluation of product innovativeness with potential future applications to early design. Innovation is a challenging concept to quantify. Experts seemingly have a grasp of what innovation is when they see it, however this evaluation...
    Resource Type:
    Masters Thesis
    Full Text:
    several other pairs of innovative and common products. These product’s environmental impacts were

  • 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
    Full Text:
    applications. Specific importance in this dissertation will be placed on design theory and methodology to