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Filtering by: Creator Ullman, David J. Remove constraint Creator: Ullman, David J. Degree Name Doctor of Philosophy (Ph.D.) Remove constraint Degree Name: Doctor of Philosophy (Ph.D.)

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  • An architecture for a function driven mechanical design solution library

    Creator:
    Wood, Stephen L.
    Abstract:
    The engineering design process and the advancement of future computer-aided-design systems need new design aids to be used during the conceptual design phase. This design phase is where information gathering and understanding of the problem are developed, analyzed and broken into small more manageable elements. These elements consist of customer...
    Resource Type:
    Dissertation
    Full Text:
    Driven Mechanical Design Solution Library. Abstract approved: Dr. David Ullman The engineering

  • 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

  • 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

  • A theory of product design process measurement

    Creator:
    Wright, Alan Louis
    Abstract:
    This dissertation approaches the problem of how to design process measurements by identifying process attributes which are common to all product development processes. By classifying the generic attributes of a product development process and their relationships, a framework is established which gives definition and context to individual measurements. At the...
    Resource Type:
    Dissertation
    Full Text:
    Redacted for Privacy Redacted for Privacy Acknowledgment I would like to thank Dr. David Ullman for

  • 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

  • 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

  • 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

  • Schedule-based material requirements planning : an artificial intelligence approach

    Creator:
    Kim, Sunuk
    Abstract:
    The objective of this research project was to identify the limitations associated with schedule-based Material Requirements Planning (SBMRP) and to present a knowledge-based expert system (KBES) approach to solve these problems. In SBMRP, the basic strategy is to use backward or forward scheduling based on an arbitrary dispatching rule, such...
    Resource Type:
    Dissertation
    Full Text:
    te j School Date thesis is presented July 3, 1990 Typed by B. McMechan for Sunuk Kim

  • Optimal design of traction drive continuously variable transmissions

    Creator:
    Lim, Kyoung Ho
    Abstract:
    The optimal design technique for minimum power loss in traction drive continuously variable transmissions is developed. The mathematical model is developed to evaluate the traction force and torque in traction drive contact. Kinematic analysis of general traction drive contact is conducted to find the best configuration for minimum power loss....
    Resource Type:
    Dissertation

  • Machine learning in engineering : techniques to speed up numerical optimization

    Creator:
    Cerbone, G. (Giuseppe)
    Abstract:
    Many important application problems in engineering can be formalized as nonlinear optimization tasks. However, numerical methods for solving such problems are brittle and do not scale well. For example, these methods depend critically on choosing a good starting point from which to perform the optimization search. In high-dimensional spaces, numerical...
    Resource Type:
    Dissertation
    Full Text:
    . Gordon Reistad was always available for suggestions as the Graduate School Representative. David Ullman