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Filtering by: Creator Smart, William D. Remove constraint Creator: Smart, William D. Degree Field Mechanical Engineering Remove constraint Degree Field: Mechanical Engineering

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  • Improving robotic grasping performance using machine learning techniques

    Creator:
    Goins, Alex Keith
    Abstract:
    Robots are being utilized in ever more complex tasks and environments to help humans with difficult or dangerous tasks. However, robotic grasping is still in its infancy and is one of the limiting factors which prevent the deployment of robots in the home and other assisted living scenarios. Traditional methods...
    Resource Type:
    Masters Thesis
    Full Text:
    ) Sarah (b) Shadow (c) iRobot (d) Sandia. 3 2.1 Flow chart of experimental procedure

  • Performance of a smart direct fire penetrator using a ram air controlled mechanism

    Creator:
    Chandgadkar, Siddharth Suhaschandra
    Abstract:
    The effectiveness of a direct fire penetrator projectile equipped with an actively controlled ram air mechanism is investigated through dynamic simulation. The ram air control mechanism consists of a rotary sleeve valve which directs air flow from an inlet at the center of the nose to side ports. The projectile...
    Resource Type:
    Masters Thesis
    Full Text:
    : Performance of a Smart Direct Fire Penetrator using a Ram Air Controlled Mechanism. Abstract approved: Mark

  • Multiagent learning for locomotion and coordination in tensegrity robotics

    Creator:
    Iscen, Atil
    Abstract:
    Tensegrity structures are composed of pure compressional elements that are connected via a network of pure tensional elements. The concept of tensegrity promises numerous advantages to the field of robotics. Tensegrity robots are, however, notoriously difficult to control due to their oscillatory nature and nonlinear interaction between the components. Multiagent...
    Resource Type:
    Dissertation
    Full Text:
    to show similarities. Subfigure (d) shows that groups of signals have similar patterns

  • Non-Myopic Distributed Coordination and Planning for Robotic Teams

    Creator:
    Smith, Andrew
    Abstract:
    As robotic systems become increasingly prevalent in our lives (e.g., by harvesting food, assisting with disaster response and defense, and transporting persons and our goods around the world) there is a growing need to ensure that they can cooperate to achieve their intended goals. Robotic cooperation in the real-world is...
    Resource Type:
    Dissertation
    Full Text:
    . Hollinger William D. Smart As robotic systems become increasingly prevalent in our lives (e.g., by

  • 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:
    V do 2: d[u] := f [u] := infinity initialize vertex u 3: color[u] = WHITE 4: p[u] := u 5: end for 6

  • Photonic Sintering of Nanoparticle Inks : Experimental Characterization, Computational Modeling and System Design for Additive Manufacturing

    Creator:
    MacNeill, William D.
    Abstract:
    Photonic sintering of nanoparticles is a relatively new process for sintering of nanoparticles, deposited on a substrate, into functional solid structures. The working principle of this process is the incidence of large-area broad-spectrum light onto deposited nanoparticles, which results in heat generation in the nanoparticles and their subsequent densification. Key...
    Resource Type:
    Masters Thesis
    Full Text:
    OF William D. MacNeill for the degree of Master of Science in Mechanical Engineering presented

  • From running birds to walking robots : optimization as a unifying framework for dynamic bipedal locomotion

    Creator:
    Hubicki, Christian M.
    Abstract:
    Bipedal locomotion is a complex phenomenon to understand and control, making it difficult for legged robots to achieve the speed, agility, efficiency, and robustness of their animal counterparts. This thesis argues for the use of numerical optimization to investigate and implement bipedal control as it applies to biology, dynamical models,...
    Resource Type:
    Dissertation
    Full Text:
    [120] (d) final prototype mono- pod (used for experiments in sections 4.4.2.4 and 4.4.3.3) (e) ATRIAS

  • Indentation hardness of Douglas fir and Western hemlock lumber related to density

    Creator:
    Corder, Stanley E.
    Abstract:
    Indentation hardness tests were made on sections of 211 pieces of Douglas fir and 208 pieces of Western hemlock at a moisture content of about 11 percent. Specific gravity and visual-density evaluations were also determined. Correlation coefficients for linear regression of density, as measured by specific gravity, on average standard...
    Resource Type:
    Masters Thesis
    Full Text:
    approved William D. McMullen Indentation hardness tests were made on sections of 211 pieces of Douglas

  • The effect of alpha phase morphology on the impact energy of commercial purity titanium

    Creator:
    York, James Michael
    Abstract:
    Samples of commercial purity titanium were heat treated above the beta transformation temperature and within the two phase alpha-beta phase field, followed by cooling at varying rates. Testing of the samples in tension and by instrumented impact indicated that some strengthening could be imparted by these heat treatments, although at...
    Resource Type:
    Masters Thesis
    Full Text:
    privacy William D. McMullen Samples of commercial purity titanium were heat treated above the beta

  • Effects of selected minor alloying additions on the structure deformation characteristics of beryllium

    Creator:
    Dooley, George Joseph, III
    Abstract:
    Solid solution alloying was employed in an attempt to produce some relatively ductile form of beryllium. If the c/a ratio could be significantly altered, it was felt new or different slip systems could be activated. The following elements were selected on the basis of atomic size, melting point, crystal structure...
    Resource Type:
    Dissertation
    Full Text:
    Abstract approved: William D. McMullen Solid solution alloying was employed in an attempt to produce