Kinematic Modeling and Dynamic Aspects of an Accelerating Quadruped

dc.contributor.advisorNicolls, Frederick
dc.contributor.authorVan Der Leek, Casey
dc.date.accessioned2024-11-05T10:52:19Z
dc.date.available2024-11-05T10:52:19Z
dc.date.issued2024
dc.date.updated2024-07-09T13:15:41Z
dc.description.abstractBio-inspired robotics engineers look to the natural world for clues to aspects of motion dynamics and morphologies that may be incorporated in the design of these robots. The mimicking and transfer of these aspects of a live subject to a modern day robot is limited by the technologies available such as computational resources, materials engineering, mathematical modeling constraints and efficient systems engineering. With this in mind, a reasonable strategy is to reproduce the functionality of a subject with current technology. A monocular camera and deep learning algorithm allow non-invasive image pose extraction of an accelerating cheetah subject, which is represented as a mechanism of rigid links interconnected by joints, and this information forms the data basis of subsequent operations. In addition, a non-linear least squares optimiser is formulated and coded specifically for the quadruped robot that produces estimates of the relative link angles, a base link length and trajectory of a reference point so that a three dimensional configuration evolution of the system is rendered. A secondary consideration is the deployment of inverse kinematics to determine the end effector trajectory of the front leg, both in the real spatial frames and phase space domains, as well as the angular rates required for these target manifolds. The parameterised inverse kinematics models were also able to generate smooth task space trajectories to within acceptable tolerances of the target position and for a single, full gait the corresponding joint space trajectories were deemed to be sufficiently closed.
dc.identifier.apacitationVan Der Leek, C. (2024). <i>Kinematic Modeling and Dynamic Aspects of an Accelerating Quadruped</i>. (). ,Faculty of Engineering and the Built Environment ,Department of Electrical Engineering. Retrieved from http://hdl.handle.net/11427/40681en_ZA
dc.identifier.chicagocitationVan Der Leek, Casey. <i>"Kinematic Modeling and Dynamic Aspects of an Accelerating Quadruped."</i> ., ,Faculty of Engineering and the Built Environment ,Department of Electrical Engineering, 2024. http://hdl.handle.net/11427/40681en_ZA
dc.identifier.citationVan Der Leek, C. 2024. Kinematic Modeling and Dynamic Aspects of an Accelerating Quadruped. . ,Faculty of Engineering and the Built Environment ,Department of Electrical Engineering. http://hdl.handle.net/11427/40681en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Van Der Leek, Casey AB - Bio-inspired robotics engineers look to the natural world for clues to aspects of motion dynamics and morphologies that may be incorporated in the design of these robots. The mimicking and transfer of these aspects of a live subject to a modern day robot is limited by the technologies available such as computational resources, materials engineering, mathematical modeling constraints and efficient systems engineering. With this in mind, a reasonable strategy is to reproduce the functionality of a subject with current technology. A monocular camera and deep learning algorithm allow non-invasive image pose extraction of an accelerating cheetah subject, which is represented as a mechanism of rigid links interconnected by joints, and this information forms the data basis of subsequent operations. In addition, a non-linear least squares optimiser is formulated and coded specifically for the quadruped robot that produces estimates of the relative link angles, a base link length and trajectory of a reference point so that a three dimensional configuration evolution of the system is rendered. A secondary consideration is the deployment of inverse kinematics to determine the end effector trajectory of the front leg, both in the real spatial frames and phase space domains, as well as the angular rates required for these target manifolds. The parameterised inverse kinematics models were also able to generate smooth task space trajectories to within acceptable tolerances of the target position and for a single, full gait the corresponding joint space trajectories were deemed to be sufficiently closed. DA - 2024 DB - OpenUCT DP - University of Cape Town KW - Engineering LK - https://open.uct.ac.za PY - 2024 T1 - Kinematic Modeling and Dynamic Aspects of an Accelerating Quadruped TI - Kinematic Modeling and Dynamic Aspects of an Accelerating Quadruped UR - http://hdl.handle.net/11427/40681 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/40681
dc.identifier.vancouvercitationVan Der Leek C. Kinematic Modeling and Dynamic Aspects of an Accelerating Quadruped. []. ,Faculty of Engineering and the Built Environment ,Department of Electrical Engineering, 2024 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/40681en_ZA
dc.language.rfc3066Eng
dc.publisher.departmentDepartment of Electrical Engineering
dc.publisher.facultyFaculty of Engineering and the Built Environment
dc.subjectEngineering
dc.titleKinematic Modeling and Dynamic Aspects of an Accelerating Quadruped
dc.typeThesis / Dissertation
dc.type.qualificationlevelMasters
dc.type.qualificationlevelMSc
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