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    Dynamics simulation of human box delivering task

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    Owens_P_2018.pdf
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    Author
    Owens, Paul Davis
    Chair
    Xiang, Yujiang
    Committee
    Peterson, Rorik
    Chen, Cheng-fu
    Keyword
    Lifting and carrying
    Computer simulation
    Human body
    Human mechanics
    Models
    Human skeleton
    Design
    Human factors
    Metadata
    Show full item record
    URI
    http://hdl.handle.net/11122/8738
    Abstract
    The dynamic optimization of a box delivery motion is a complex task. The key component is to achieve an optimized motion associated with the box weight, delivering speed, and location. This thesis addresses one solution for determining the optimal delivery of a box. The delivering task is divided into five subtasks: lifting, transition step, carrying, transition step, and unloading. Each task is simulated independently with appropriate boundary conditions so that they can be stitched together to render a complete delivering task. Each task is formulated as an optimization problem. The design variables are joint angle profiles. For lifting and carrying task, the objective function is the dynamic effort. The unloading task is a byproduct of the lifting task, but done in reverse, starting with holding the box and ending with it at its final position. In contrast, for transition task, the objective function is the combination of dynamic effort and joint discomfort. The various joint parameters are analyzed consisting of joint torque, joint angles, and ground reactive forces. A viable optimization motion is generated from the simulation results. It is also empirically validated. This research holds significance for professions containing heavy box lifting and delivering tasks and would like to reduce the chance of injury.
    Description
    Thesis (M.S.) University of Alaska Fairbanks, 2018
    Table of Contents
    Chapter 1 Introduction -- Chapter 2 Skeletal Human Modeling -- Chapter 3 Kinematics and Dynamics -- Chapter 4 Lifting Simulation -- Chapter 5 Carrying Simulation -- Chapter 6 Delivering Simulation -- Chapter 7 Conclusion and Future Research -- Reference.
    Date
    2018-05
    Type
    Thesis
    Collections
    Engineering

    entitlement

     

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