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Filtering by: Creator Long, Deng Remove constraint Creator: Long, Deng Degree Field Mechanical Engineering Remove constraint Degree Field: Mechanical Engineering

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  • Functional analysis to inform early design decisions for novel systems with substantial operations and maintenance costs

    Creator:
    Algarra, Nathan
    Abstract:
    Long field-life systems are those for which operational, as opposed to capital, expenditures dominate the life time cost of the system. In established product categories, operational experience and historical maintenance data allows engineers to make informed decisions influencing maintenance during the early design stages when design changes are at their...
    Resource Type:
    Masters Thesis
    Full Text:
    Costs Abstract approved: Andy Dong Long field-life systems are those for which operational, as opposed

  • Development of a singulation device for stonefly larva

    Creator:
    Williams, Kate S. (Kate Shreeve)
    Abstract:
    Population counts of aquatic insects can be a credible indicator of the overall health of a waterway. Stonefly (Plecoptera) larva are very sensitive to chemicals present within the waterway, however obtaining population counts of the larvae can be very labor intensive and thus costly. The BugID project has been working...
    Resource Type:
    Masters Thesis
    Full Text:
    published work by the group (Deng et. al., 2007; Larios et. al., 2007; Mortensen et. al, 2005; Mortensen

  • Adaptive Multiagent Traffic Management for Autonomous Robotic Systems

    Creator:
    Rebhuhn, Carrie
    Abstract:
    There is growing commercial interest in the use of unmanned aerial vehicles (UAVs) in urban environments, specifically for package delivery applications. However, the size, complexity and sheer numbers of expected UAVs makes conventional air traffic management that relies on human air traffic controllers infeasible. To enable UAVs to safely and...
    Resource Type:
    Dissertation
    Full Text:
    that is adaptive to traffic conditions and learns long-term effects of management decisions. • Create

  • Numerical Modeling of Powder Metallurgy Hot Isostatic Pressing

    Creator:
    Sobhani, Samaneh
    Abstract:
    Powder Metallurgy Hot Isostatic Pressing (PM-HIP) is a widely recognized powder metallurgy manufacturing process to produce near-net-shape and net-shape components. During general PM-HIP processes the metal powders are filled within a capsule (die), heated and loaded with high pressure simultaneously, and solidified to form the final product. Due to the...
    Resource Type:
    Dissertation
    Full Text:
    capsule design is critical for achieving dense net shape or near net shape components. Deng et al. [14

  • Mechanical design under changing customer requirements case study : BugID

    Creator:
    Fagan, Chris R.
    Abstract:
    Customer requirements and engineering specifications will influence the direction of the design in any product, so it is crucial to make the requirements as stable as possible so quality designs can be produced on time within a budget. It would be optimal for requirements and specifications to remain constant but...
    Resource Type:
    Masters Thesis
    Full Text:
    environment [16]. Requirement changes are likely to occur in long-lived systems and, by embedding

  • Design of an automated system for imaging and sorting soil mesofauna

    Creator:
    Chamblin, Mike A.
    Abstract:
    Identification and population counts of soil mesofauna can be an important tool for soil ecologists to determine the soil biodiversity. Information provided from population counts can give insight to soil ecologists about the effects of human land use, monitoring soil and water health, benefits of soil biodiversity in agriculture, and...
    Resource Type:
    Masters Thesis
    Full Text:
    new smaller species of arthropods, including soil mesofauna. The long-term goal is to develop a

  • The energy extraction performance of an oscillating rigid and flexible foil

    Creator:
    Totpal, Alexander D.
    Abstract:
    The aerodynamic performance of an oscillating pitching and plunging foil operating in the energy harvesting mode is investigated. Experiments are conducted in a closed-loop recirculating wind tunnel at Reynolds numbers of 24,000 to 48,000, and reduced frequencies (k = fc/u) of 0.042 to 0.083. Foil kinematics are varied through the...
    Resource Type:
    Masters Thesis

  • Micro-bubble dynamics in two-phase flow through a micro-channel

    Creator:
    Shepard, Thomas G.
    Abstract:
    An experimental investigation into the behavior of micro-bubbles flowing through a micro-channel has been conducted. Experiments were performed within a rectangular micro-channel with dimensions of 5 cm x 13.2 mm x l30 jim. Bubbles were generated in an electrolyte solution by electrolysis at the lower channel wall near the inlet....
    Resource Type:
    Masters Thesis
    Full Text:
    heat transfer in two- phase flows (Deng et al. 2003), for medical imaging through ultrasound

  • Numerical and Experimental Evaluation of Membrane Based Energy Recovery Ventilator Performance with an Internal Support Structure

    Creator:
    Armatis, Paul D.
    Abstract:
    Large amounts of energy are wasted when conditioned air in buildings is exhausted to meet ventilation requirements. There are several technologies to recover some of this energy, including the recent development of membrane based energy recovery ventilators (ERVs). ERVs exchange sensible heat and moisture between incoming fresh and outgoing exhaust...
    Resource Type:
    Masters Thesis
    Full Text:
    negligible for modeling purposes (Niu & Zhang, 2001; Yang et al., 2015; Y. Zhang, Jiang, Zhang, Deng, & Jin

  • Product innovation for interdisciplinary design under changing requirements : mechanical design for the Bug ID project

    Creator:
    Peterson, Clint W.
    Abstract:
    It is crucial for the development of high quality products that design requirements are identified and clarified as early as possible in the design process. In many projects the design requirements and design specifications evolve during the project cycle. Shifting needs of the customer, advancing technology, market considerations and even...
    Resource Type:
    Masters Thesis