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  • Vortex Generator Flow Control for an Upper-Surface Blown Aircraft Wing with an Extended Coanda Flap

    Creator:
    Kelly, Bryan R.
    Abstract:
    Integrated Distributed Electric Augmented Lift (IDEAL) applies upper-surface blowing in a novel way using an array of electric ducted fans (EDFs) to achieve electric short take-off and landing to meet the growing need for urban air transportation. Additional research on the use of vortex generators (VGs) to reduce flow separation...
    Resource Type:
    Masters Thesis
    Full Text:
    . Abstract approved: ______________________________________________________ David G. Ullman

  • An empirical study on the process of mechanical design

    Creator:
    Stauffer, Larry A.
    Abstract:
    An information processing model of the problem-solving performance of mechanical designers is presented for four design tasks: conceptual assembly design, layout component design, detail component design, and catalog selection. These tasks are organized into six kinds of segments called episodes, which describe the goal structure of the designer while performing...
    Resource Type:
    Dissertation
    Full Text:
    Abstract approved: Redacted for Privacy David G. Ullman An information processing model of the problem

  • The application of a band variable-inertia flywheel to an urban transit bus

    Creator:
    Moosavi-Rad, Hamid
    Abstract:
    This dissertation investigates by means of computer simulation the potential of a Band Variable-Inertia Flywheel (BVIF) to store energy for an urban transit bus. Replacing both a fixed-inertia flywheel (FIF) and a continuously variable transmission (CVT), the Band Variable-Inertia Flywheel is capable of accelerating a vehicle from rest to a...
    Resource Type:
    Dissertation
    Full Text:
    -INERTIA FLYWHEEL TO AN URBAN TRANSIT BUS Abstract approved: Redacted for Privacy Professor David G

  • Mechanical design history content : the information requests of design engineers

    Creator:
    Kuffner, Tom A.
    Abstract:
    This thesis reports on research conducted to determine the information which should be included in a mechanical design history. This is part of a larger research effort aimed at developing a computer tool for storing and replaying mechanical design history information. Three question-asking protocols were conducted to determine what information...
    Resource Type:
    Masters Thesis
    Full Text:
    : Redacted for Privacy David G. Ullman, \..:1./ Associate Professor of Mechanical Engineering in charge of

  • An object oriented representation for mechanical design based on constraints

    Creator:
    McGinnis, Brian D.
    Abstract:
    A representation for the process of mechanical design, along with its computer implementation is presented and discussed. The representation consists of three fundamental concepts: design objects, constraints, and decisions. The design objects are the structures with which the physical artifacts of the design are described. A design object consists of...
    Resource Type:
    Masters Thesis
    Full Text:
    : -...'David G. Ullman A representation for the process of mechanical design, along with its computer

  • The design capture system : capturing back-of-the-envelope sketches

    Creator:
    Hwang, Teng-shang
    Abstract:
    A system which allows the computer to capture sketches made by a mechanical designer is described. The system not only recognizes basic features as they are sketched, but it also reasons the spatial relationships between features and builds a high level abstract representation (feature model) of the artifact. The temporal...
    Resource Type:
    Dissertation
    Full Text:
    -Envelope Sketches Redacted for Privacy Abstract approved: David G. Ullman A system which allows the

  • A computer-based design history tool

    Creator:
    Chen, Ai-hua
    Abstract:
    In current practice, design documentation often fails to support the activities of design understanding, communication, and redesign. A Design History Tool has been developed to improve current design documentation. This tool is a computerized design history that represents and plays back important information generated during the process of designing a...
    Resource Type:
    Dissertation
    Full Text:
    approved: David G. Ullman In current practice, design documentation often fails to support the activities

  • Static and dynamic testing of a recumbent bicycle's suspension components, and design of a damping coefficient-spring constant test machine

    Creator:
    Metaxides, Evangelos
    Abstract:
    The purpose of this study is to provide the necessary technical background and data for the development of a suspension system for a recumbent bicycle. For this reason, the customer requirements-design criteria for the development of the suspension system were set, and several static and dynamic tests were conducted on...
    Resource Type:
    Masters Thesis
    Full Text:
    . and Design of a Damping Coefficient-Spring Constant Test Machine. Abstract approved: David G

  • SketchPad for Windows : an intelligent and interactive sketching software

    Creator:
    Gulur, Sudheendra S.
    Abstract:
    The sketching software developed in this thesis, is aimed to serve as an intelligent design tool for the conceptual design stage of the mechanical design process. This sketching software, Sketch Pad for Windows, closely mimics the traditional paper-and-pencil sketching environment by allowing the user to sketch freely on the computer...
    Resource Type:
    Masters Thesis
    Full Text:
    Intelligent and Interactive Sketching Software. Abstract approved: David. G. Ullman The sketching

  • An Engineering Decision Support System (EDSS) with alternative-criterion pair evaluations

    Creator:
    Herling, Derald E.
    Abstract:
    An Engineering Decision Support System, EDSS, was developed using Bayesian mathematics which incorporates knowledge and confidence components observed in alternative-criterion pair decision making. The separation of knowledge and confidence has been previously unaccounted for in decision-making methods. EDSS provides decision support to individuals or teams which must make choices between...
    Resource Type:
    Dissertation
    Full Text:
    Decision Support System (EDSS) with Alternative-Criterion Pair Evaluations Abstract approved: David G