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  • 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:
    design and control a real flying model, but rather to investigate the use of optimal control theory in

  • Adaptive model reference control of highly maneuverable high performance aircraft

    Creator:
    Collins, David C. (David Charles), 1969-
    Abstract:
    This thesis presents an adaptive model reference controller for a highly maneuverable high performance aircraft, in particular, a modified F18. An adaptive controller is developed to maneuver an aircraft at a high angle of attack. Thus, the aircraft is required to fly over a highly nonlinear flight regime. The adaptive...
    Resource Type:
    Masters Thesis
    Full Text:
    Adaptive model reference control of highly maneuverable

  • Theoretical modeling and experimental analysis of the flight mechanics of Lepidoptera

    Creator:
    Wilson, Tyler
    Abstract:
    Development of micro air vehicles has led to a strong interest in the biomechanics of flapping fliers such as bats, birds, and insects, due to their ability to perform extreme unsteady maneuvers and fly in confined spaces. Determining the methods and mechanisms used by these fliers is a valuable source...
    Resource Type:
    Masters Thesis
    Full Text:
    analysis of Lepidoptera flight, including the development of a numerical model of a flapping Tree Nymph

  • Minimum-cost multi-item coordinated ordering models with dependent set up cost

    Creator:
    Kim, Jae Yearn
    Abstract:
    In this paper, we discuss extensions of two coordinated ordering methods which reduce inventory costs for multi-item systems. Goyal's method, which is useful for constant demand, decreases cost by assigning an order interval for each item, and an optimum number of purchase orders per period. Goyal's method is modified to...
    Resource Type:
    Masters Thesis
    Full Text:
    - Page 1. istics 4 2. Multi-echelon model 5 3. Behavior of an item under a can order policy 34 4

  • Optimal allocation of screening inspection effort for nonserial production systems

    Creator:
    Yum, Bong Jin
    Abstract:
    The economic aspects of quality control have received wide concern since its developmental stages, however, they have not been sufficiently explored. Moreover, as the need for complex products of high precision and reliability increases, most industrial firms have experienced some difficulties in meeting that need at reasonable costs with their...
    Resource Type:
    Masters Thesis
    Full Text:
    efforts within a production process, a mathematical model has been developed for determining the optimal

  • High resolution root locus plots

    Creator:
    Swenson, Edward James
    Abstract:
    A technique is presented for obtaining high resolution root locus plots and Bode diagrams. This is done by translating the origin of coordinates to the area of interest by an appropriate change of variable. The method is applicable to hand calculations or use of a potential analog computer. Examples include...
    Resource Type:
    Masters Thesis
    Full Text:
    the design of high-speed tracking antenna systems and booster control systems. HIGH RESOLUTION

  • Critical evaluation of Ouyang's model reduction method

    Creator:
    Jia, Zuxin
    Abstract:
    A model reduction method for stable, linear, time-invariant, continuous systems is critically studied. This method, proposed by Prof. Ouyang, is based on the concept of power dispersion and the least-squared estimation technique. The reduced models obtained by this method retain the stability of the stable, high order original systems and...
    Resource Type:
    Masters Thesis
    Full Text:
    model can lead to acceptable simplified control system structures (Shahriar, 1981). This topic has

  • Decentralized control of a cable-stayed beam structure

    Creator:
    Volz, Patrick U.
    Resource Type:
    Masters Thesis
    Full Text:
    Model 24 3.3 The Control Law 25 3.4 Proof of Stability (Outline) 28 3.5 Controller Performance 30

  • Clearing bubble blockages in micro channels using a model predictive controller

    Creator:
    Patton, Chris
    Abstract:
    Micro scale systems are being utilized in a wide variety of chemical, biological and heat exchanger applications, but suffer from the development of vapor bubbles inside the microchannels due to convective boiling, leading to decreases in system performance. In this work, a simulation-based control strategy is employed to eliminate flow...
    Resource Type:
    Masters Thesis
    Full Text:
    Micro Channels using Model Predictive Control Abstract approved: John Schmitt Micro scale systems are

  • Production rates of skyline, balloon, and helicopter yarding systems from gross time study analysis

    Creator:
    Curtis, Richard James
    Abstract:
    This paper describes the analysis of data from a three-year gross time study of skyline, balloon, and helicopter yarding systems operating in Western Oregon. Data collection activities were designed and supervised by the Pacific Northwest Forest and Range Experiment Station, U.S.D.A. Forest Service. The specific logging systems studied were running...
    Resource Type:
    Masters Thesis
    Full Text:
    : Control Skyline Sheaves Engine Dropline drum Capacity Speed Skyline clamp Load capacity Weight