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Filtering by: Creator Putnam, Nathan F. Remove constraint Creator: Putnam, Nathan F. Degree Field Mechanical Engineering Remove constraint Degree Field: Mechanical Engineering

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  • 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:
    AN ABSTRACT OF THE THESIS OF STEL NATHAN WALKER for the degree

  • Dynamic modeling, control aspects and model predictive control of a parafoil and payload system

    Creator:
    Slegers, Nathan J.
    Abstract:
    Control issues are investigated for a parafoil and payload system with left and right parafoil brakes used as the control mechanism. It is shown through dynamic modeling and simulation that parafoil and payload systems can exhibit two basic modes of lateral control, namely, roll and skid steering. Using a small...
    Resource Type:
    Dissertation
    Full Text:
    Nathan J. Slegers for the degree of Doctor of Philosophy in

  • Turbulent Combustion Analysis of Large Hydrocarbon Fuels in a Reduced Pressure Environment

    Creator:
    Schorn, Nathan E.
    Abstract:
    The aviation industry is pushing for better fuels and gas turbine engines for several reasons: cost, emissions, and to a lesser extent high-altitude relights. One aspect that research has been focused on to help reduce costs, emissions and better understand high-altitude relights is studying the combustion behavior of the fuel...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Nathan E. Schorn for the degree of Master of

  • A study of bubble size in a large particle fluidized bed at elevated temperatures

    Creator:
    Hockman, Jeffrey Nathan
    Abstract:
    The literature cites several examples of investigations made concerning the size of bubbles rising in small particle fluidized beds at room temperature. In many practical applications, however, fluidized beds require the use of large particles at very high temperatures. Despite this fact, little information has been reported on bubble size...
    Resource Type:
    Masters Thesis
    Full Text:
    at elevated temperatures AN ABSTRACT OF THE THESIS OF Jeffrey Nathan Hockman for the degree of

  • 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:
    AN ABSTRACT OF THE THESIS OF Nathan Algarra for the

  • Analysis of spillway hydrodynamics for total dissolved gas prediction downstream of hydropower projects with free, plunging spillway jets

    Creator:
    Germann, Nathan A.
    Abstract:
    During spring and early summer hydropower projects are often forced to spill water through their spillways due to increased river flows of the runoff season. Flows which are directed through spillways--instead of through turbines--contain a substantial amount of energy. Stemming from the high energy content, spillway flows entrain air at...
    Resource Type:
    Masters Thesis
    Full Text:
    Nathan A. Germann for the degree of Master of Science in Mechanical Engineering presented on October 2

  • The Design of a Multidisciplinary Capstone Course

    Creator:
    Rust, Nathan R.
    Abstract:
    The end goal of any educational program is to prepare a student for the challenges they will see after completion of their studies. In the realm of engineering, the pinnacle of this occurs during a student’s final Capstone course series, where students are asked to apply their various skills learned...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Nathan Rust for

  • Modeling and control of a biologically inspired compliant structure

    Creator:
    Ray, Cody W.
    Abstract:
    We hypothesize that the extraordinary maneuverability and efficiency of bats in flight are in part due to the compliant nature of their wing structures. We utilize the parameters of bat bones measured by biologists to create a biologically inspired model of a flapping system consisting of a rotating hub actuator...
    Resource Type:
    Masters Thesis
    Full Text:
    ) Lm: Length of the tip mass (m) m: Mass at tip of beam (x = L) (kg) f(t): Disturbance force upon

  • Topological Design Considering Uncertainty and Hyperelasticity

    Creator:
    Pham, Trung
    Abstract:
    Topology optimization (TO) is a mathematical method to find the optimal size, shape and connectivity of a domain under specified conditions, and has had many applications in engineering design. However, challenges remain in realizing TO as an effective design tool for many design situations. Uncertainty is ubiquitous in nature and...
    Resource Type:
    Dissertation
    Full Text:
    (Chair), Dr. Matthew Campbell, Dr. Nathan Gibson, Dr. Onan Demirel, and Dr. Judy Liu−whose comments have

  • Bi-level flexible-robust optimization for energy allocation problems

    Creator:
    Biswas, Arpan
    Abstract:
    A common problem in energy allocation problems is managing the trade-off between selling surplus energy to maximize short term revenue, versus holding surplus energy to hedge against future shortfalls. For energy allocation problems, this surplus represents resource flexibility and is quantified as the surplus energy after meeting the demand. The...
    Resource Type:
    Masters Thesis
    Full Text:
    (𝑄𝑜𝑢𝑡,𝑡, ℎ�̃�𝑡(𝐹�̃�𝑡, TWt), ξ𝑡) 14 𝑡=1 (1), (2) Where