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  • Discrete-time explicit model reference adaptive control for robotic manipulators

    Creator:
    Yuh, Junku
    Abstract:
    In this dissertation a direct approach to discrete-time model reference adaptive control (MRAC) based on hyperstability theory is proposed to control industrial robotic manipulators. For industrial robots and manipulators, which usually have highly nonlinear and complex dynamic equations and often have unknown inertia characteristics, it is very difficult to achieve...
    Resource Type:
    Dissertation
    Full Text:
    control [6-9], and self-tuning regulators [10,11]. Among these the model reference adaptive control

  • A model reference adaptive system for control of a flexible mechanical manipulator

    Creator:
    Lee, Byeung Kyun
    Abstract:
    For control of a flexible manipulator, the assumed- mode method is applied to the mathematical model of the model reference adaptive system. In the assumed-mode method, the flexible, continuous manipulator is described by a limited number of degrees of freedom. A modified model reference adaptive system is studied for direct...
    Resource Type:
    Dissertation
    Full Text:
    Adaptive System 67 4.1.1 Lemma 6 72 4.1.2 Theorem 72 4.2 Application of the Model Reference Adaptive

  • The phase diagram of zirconium and chromium with special reference to the transformation in the intermetalic compound ZrCr₂

    Creator:
    Shen, Yuan-shou
    Abstract:
    The zirconium-chromium phase diagram was investigated in the region between 40% and 85% chromium. The ZrCr₂ intermetallic compound which has been the source of some controversy was especially considered. It was found that ZrCr₂ transforms from the low temperature C-15 (MgCu₂, FCC) structure to the high temperature C-14 (MgZn₂, HCP)...
    Resource Type:
    Dissertation
    Full Text:
    reference to the transformation in the intermetallic compound ZrCr2 AN ABSTRACT OF THE THESIS OF YUAN

  • Quantifying the total organic compound emissions during kiln drying of 2 by 6 coastal Douglas-fir lumber and analyzing the effects of drying conditions

    Creator:
    Wu, Jing
    Abstract:
    Volatile organic emissions (VOCs) from the kiln drying of lumber are of concern to government, research agencies, and the forest products industry. In the Pacific Northwest, neither the quantity of VOC emissions from kilns drying Douglas-fir is available, nor the effects of drying schedule and lumber-related characteristics on the emissions....
    Resource Type:
    Masters Thesis

  • Engineering design knowledge management and capture using a process overview document

    Creator:
    Zarins, Andis M.
    Abstract:
    An experiment was conducted to examine the possible impact of an engineering design and problem solving process overview document on knowledge management and capture. A process overview document was first created. Next, two multi-disciplinary design teams worked over a two-week span to develop concepts to address a problematic opportunity. One...
    Resource Type:
    Masters Thesis
    Full Text:
    group did not. Two hypotheses, related to the number of times individuals checked available reference

  • Stability of some commercial lubricating oil addition agents in an internal combustion engine

    Creator:
    Robidart, Charles Martin
    Abstract:
    In the mid 1930's the Diesel engine, which formerly was used only as a large, low-speed machine, was developed into a smaller high-speed engine for use in trucks, busses, and tractors. Along with these changes in mechanical design came many problems, of which a major one was lubrication. Because ordinary...
    Resource Type:
    Masters Thesis
    Full Text:
    Proofing Oil Wynoi 1 i pint to 9 pints reference oil J. pint to 6 pints reference oil 1 oz to 1

  • Self-adaptive Subsets for Stretched and Rotated Textures in Digital Image Correlation

    Creator:
    Gao, Zizhan
    Abstract:
    Digital image correlation (DIC) uses pairs of images, one in a reference state and one after in situ manipulation of the object, to measure full-field displacements and strains by tracking the motion of small image subsets. Subset selection is always a crucial part of DIC technique as it has a...
    Resource Type:
    Capstone Project
    Full Text:
    Preliminary subsets in original reference image Fig.6 Preliminary subsets in stretched reference image

  • Electrical Conductivity of Ceramic Material at High Temperature

    Creator:
    Kangsathein, Parm
    Abstract:
    The electrical conductivity data of ceramic material at high temperatures can be useful in the application of modeling, solid oxide fuel cell (SOFC), and magnetohydrodynamic (MHD). The existing data is considerably lacking at extreme temperatures. Our research focuses on bridging this gap by reporting the electrical conductivity measurements of sets...
    Resource Type:
    Honors College Thesis
    Full Text:
    can be used in various modeling as well as other applications and serves as a reference to the

  • Shocks and Awe : Damping Selection in Racecars to Maximize Grip

    Creator:
    Takaro, Trevor M. F.
    Abstract:
    This thesis covers the use of a quarter car model to select damping rates for aFormula Student (FS) car, focusing on minimizing vertical tire force variation to improvegrip. A 2 degree of freedom (DOF) quarter car model is cycled over the road frequenciesof interest and the results compared with the...
    Resource Type:
    Masters Thesis
    Full Text:
    standardized test tracks are utilized as well an artificial bump similar to that studied in reference [4

  • Design considerations for strain gage transducers

    Creator:
    Smith, Harlan Bradford
    Abstract:
    Design considerations are presented which apply to all types of electrical resistance strain gage transducers. While the concepts apply to mass produced transducers, the information should be most useful for the engineer or technician who designs one-of-a-kind or "home-made" transducers. Errors which affect the accuracy of strain gage transducers are...
    Resource Type:
    Masters Thesis
    Full Text:
    gage bridge systems, null balance, unbalance, reference bridges. Strain Gage Readings Vol. 1, No. 6:15