The purpose of this paper is to study a 7-DOF humanoid cable-driven robotic arm, implement kinematics and dynamics analysis, present different cable-driven designs and evaluate their merits and drawbacks. Since this is a redundant mechanism, kinematics optimization is used to avoid joint limits, singularities and obstacles. Cable kinematics analysis studies the relationships between cable length and the end-effector pose. This is a design modified from the literature. Several new designs are compared in pseudostatics analysis of the arm and a favorable design is suggested in terms of motion range and the cable tensions. Linear programming is used to optimize cable tensions. Dynamics analysis shows that the energy consumption of a cable-driven arm is much less than that of traditional motor-driven arm. Cable-driven robots have potential benefits but also some limitations.
- Design Engineering Division and Computers and Information in Engineering Division
7-DOF Cable-Driven Humanoid Robotic Arm
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Ding, J, & Williams, RL, II. "7-DOF Cable-Driven Humanoid Robotic Arm." Proceedings of the ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. Volume 6: 35th Mechanisms and Robotics Conference, Parts A and B. Washington, DC, USA. August 28–31, 2011. pp. 1317-1326. ASME. https://doi.org/10.1115/DETC2011-48276
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