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Filtering by: Committee Member Powelson, R. L. Remove constraint Committee Member: Powelson, R. L. Degree Field Mechanical Engineering Remove constraint Degree Field: Mechanical Engineering

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  • Robustness of uncertain systems : globally optimal Lyapunov function

    Creator:
    Ahmadkhanlou, Fariborz
    Abstract:
    The Lyapunov direct method is utilized to determine the robustness bounds for nonlinear, time-variant uncertainies p[subscript i]. Determination of the robustness bounds consists of two principal steps: (i) generation of a Lyapunov function and (ii) determination of the bounds based on the generated Lyapunov function. Presently in robustness investigations, a...
    Resource Type:
    Dissertation
    Full Text:
    would also like to thank the members of my graduate committee, including Drs. R. R. Mohler, C. E

  • Development and Application of a Reduced Chemical Kinetics Model for Low-Speed Pre-Ignition Investigation

    Creator:
    Tran, Khang NV.
    Abstract:
    Gasoline direct injection engines, with downsized boosted technology, present a promising option for enhancing power density and reducing fuel consumption for next-generation engine designs to meet stringent fuel economy and emission standards. However, these developments in the low-speed and high-load operating regime are challenged by the occurrence of a new...
    Resource Type:
    Masters Thesis
    Full Text:
    Abstract approved: Christopher L. Hagen Kyle E. Niemeyer Gasoline direct injection engines, with downsized

  • Numerical modeling of the hydrodynamics of gas fluidized beds

    Creator:
    Wang, Yusan
    Abstract:
    This research involves a numerical study of the hydrodynamics of gas fluidized beds. We use the continuum model, treating both gas and particles as interpenetrating continua. The motion of gas and particles is strongly coupled by the interactions between them. For simplicity, we only consider drag forces. We use MacCormack's...
    Resource Type:
    Dissertation
    Full Text:
    Ml • 1 0.1 2> ucr M -JS 01 WH -J nen H Ul 1 O it «l ft Xh 1 M HO AI H| 6i U hO ff»l 1 1 1 1

  • An experimental investigation of combustion products through a flat, laminar, pre-mixed hydrocarbon-air flame

    Creator:
    Brenchley, David Lee
    Abstract:
    Flat, laminar, premixed hydrocarbon-air flames were stabilized on a porous-plate burner. In addition to temperature profiles, concentration profiles were measured for methane, ethane, ethylene, propane, acetylene, propylene, carbon monoxide, carbon dioxide and oxides of nitrogen. Dead space thickness, luminous flame zone thickness and hydrocarbon disappearance point responses were also monitored....
    Resource Type:
    Dissertation
    Full Text:
    Marion F. Palmateer for David L. Brenchley r ACKNOWLEDGMENTS The student -professor relationship

  • Experimental studies of a partially defluidized bed with immersed heat exchange tubes

    Creator:
    Sitthiphong, Norkun
    Abstract:
    The object of this research study is to investigate and provide some fundamental information about bed slumping in a partially defluidized bed combustor. Due to the difficulty in making measurements and observations at high temperature, a dynamically similar cold phase fluidized bed was used to model the high temperature case....
    Resource Type:
    Dissertation
    Full Text:
    assistance with my dissertation research. Also, I wish to thank Dr. Lorin R. Davis who is my former advisor

  • A study of laser generated Rayleigh and Lamb waves in graphite/epoxy composites

    Creator:
    Park, Heeyong
    Abstract:
    The application of laser generated ultrasonics was first demonstrated in the mid-seventies and has shown good potential when applied to isotropic materials. However, its use with composite materials is still in the early stages of development. This study explores the potential for application of laser generated Rayleigh and Lamb waves...
    Resource Type:
    Dissertation
    Full Text:
    committee members, T. C. Kennedy, M. N. L. Narasimhan, E. Wolff, and Graduate Committe Representative, R. H