DEVELOPMENT AND CONTROL OF A SHOULDER JOINT FOR HUMANOID ROBOTICS APPLICATION
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Date
2021-05
Authors
Otarbay, Zhenis
Journal Title
Journal ISSN
Volume Title
Publisher
Nazarbayev University School of Engineering and Digital Sciences
Abstract
Humanoid robotics represents an important sub-field of Robotics that has many applica-
tions, such as house assistance, surveillance, medical assistance, dangerous environments,
repetitive works, and rehabilitation. Human joints are difficult to replicate in a humanoid
robot. The available biological models may differ from the real-life robotic models. This
work aims at modeling, building, and controlling a low-inertia, high-stiffness, tendon-
driven shoulder joint. Force and position sensors are integrated for further study of the
system dynamics. A Python-V-REP model of the joint is developed to study the joint
motion and to optimize its design. Also, a Python interface is used to visualize the control
mechanism and to represent the force sensor and magnetic encoder values that facilitate
monitoring and controlling the actuators’ status. We explored the possibility to use EEG
(Electroencephalogram) signals to control the robotic joint, taking into account possible
applications in telerobotics and as prosthesis. A parallel manipulator with three curved
limbs can be used in a humanoid robots as a shoulder and wrist joints. Describing the
kinematics of this type of platform is a challenging process. This work tried also to ex-
amine two methods to find the direct and inverse kinematics of the parallel manipulator.
The successive screw method is applied to one limb of the manipulator with the assump-
tion that the other two legs will follow the first one. The geometric method describes a
change in the height of the manipulator where pulleys are located.
Description
Keywords
Type of access: Embargo, Research Subject Categories::TECHNOLOGY, humanoid robotics, EEG, electroencephalogram
Citation
Otarbay, Z. (2021). Development and Control of a Shoulder Joint for Humanoid Robotics Application (Unpublished master's thesis). Nazarbayev University, Nur-Sultan, Kazakhstan