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Filtering by: Creator Fahey, Robert T. Remove constraint Creator: Fahey, Robert T. Degree Field Mechanical Engineering Remove constraint Degree Field: Mechanical Engineering Degree Name Doctor of Philosophy (Ph.D.) Remove constraint Degree Name: Doctor of Philosophy (Ph.D.)

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  • Development of vehicle dynamics tools for motorsports

    Creator:
    Patton, Chris
    Abstract:
    In this dissertation, a group of vehicle dynamics simulation tools is developed with two primary goals: to accurately represent vehicle behavior and to provide insight that improves the understanding of vehicle performance. Three tools are developed that focus on tire modeling, vehicle modeling and lap time simulation. Tire modeling is...
    Resource Type:
    Dissertation
    Full Text:
    : ______________________________________________________________________________ Robert K. Paasch In this dissertation, a group of vehicle dynamics simulation tools is

  • 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

  • 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

  • Performance and optimum design analysis/ computation for propeller type wind turbines

    Creator:
    Walker, Stel Nathan
    Abstract:
    Development of a performance analysis for propeller type wind turbines is presented. The analysis uses a strip theory approach that includes tip-loss and blade interference. A comparison is presented between analysis and test data. The comparison indicates that the analysis predicts wind turbine performance to an accuracy that is within...
    Resource Type:
    Dissertation
    Full Text:
    many. It is with pleasure that I acknowledge their assistance. Dr. Robert F. Wilson, my major

  • Linearized model for wind turbines in yaw

    Creator:
    Chaiyapinunt, Somsak
    Abstract:
    The analysis of rigid hub, three-bladed horizontal-axis, axisymmetric wind turbines in yaw is made using a linearized, four-degree-of-freedom model. The linearized equations of motion of rotor and nacelle are developed using quasi-steady blade element theory and Lagrange's equations. The yaw behavior of the system is studied from coefficients of the...
    Resource Type:
    Dissertation
    Full Text:
    : Redacted for privacy Konem t. wiison The analysis of rigid hub, three-bladed horizontal-axis

  • Wind tunnel simulation and field measurements of flow over a coastal headland

    Creator:
    Brownlow, Roger West
    Abstract:
    An experimental study was made of the average and turbulent wind characteristics of the flow over a model of a coastal headland. The scale of the model was 300:1, corresponding to a prototype size of 500 m. The data for validation of the model study was obtained from instruments mounted...
    Resource Type:
    Dissertation
    Full Text:
    Abstract approved: RObert E. Wilson An experimental study was made of the average and turbulent wind

  • Theory and application of vector space similarity measures in computer assisted conceptual design

    Creator:
    Poppa, Kerry R.
    Abstract:
    A number of computational tools now exist to aid in developing conceptual solutions based on a functional description of a design problem. A key limitation of these tools is the way results are organized for presentation to the user. In general, results are an undifferentiated mass of potential solutions. Analysis...
    Resource Type:
    Dissertation
    Full Text:
    Computer Assisted Conceptual Design Abstract approved: Robert B. Stone Irem Y. Tumer A

  • Turbulence induced loads on a teetered rotor

    Creator:
    Weber, Timothy L.
    Abstract:
    Development of variable speed horizontal axis wind turbines has resulted in a need for an analysis code with a rotor speed degree-of-freedom. This study develops a five degree-of-freedom time domain computer code that evaluates blade and rotor, mean and cyclic loads with nonlinear aerodynamics together with atmospheric turbulence as a...
    Resource Type:
    Dissertation
    Full Text:
    Abstract approved: Robert E. Wilson Development of variable speed horizontal axis wind turbines has

  • Stochastic loads on horizontal axis wind turbine blades

    Creator:
    Freeman, Lisa Nalani
    Abstract:
    The objective of this work was to develop a method for determining stochastic loads on horizontal axis wind turbine blades. Stochastic loads caused by wind turbulence are a major consideration in designing for long life, cost effective wind turbines. The rotor blades are of particular concern because the blades are...
    Resource Type:
    Dissertation
    Full Text:
    Horizontal Axis Wind Turbine Blades. Abstract approved: Robert E. Wilson The objective of this work was to

  • Evaluation of horizontal axis wind turbine blade loads using unsteady aerodynamics

    Creator:
    Hartin, John R.
    Abstract:
    Most existing analyses of the blade loads on horizontal axis wind turbines are conducted using linear steady-state aerodynamics, but evaluation of loads resulting from wind turbulence or gusts may not be adequate using these techniques. This study develops single-parameter approximations for both the shed wake and trailing wake components of...
    Resource Type:
    Dissertation
    Full Text:
    Turbine Blade Loads Using Unsteady Aerodynamics Redacted for Privacy Abstract approved: Robert E. Wilson