Design of a Variable Stiffness Quasi-Direct Drive Cable-Actuated Tensegrity Robot
Tensegrity robots excel in tasks requiring extreme levels of deformability and robustness. However, there are challenges in state estimation and payload versatility due to their high number of degrees of freedom and unconventional shape. This paper introduces a modular three-bar tensegrity robot fea...
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| creator | Mi, Jonathan Tong, Wenzhe Ma, Yilin Huang, Xiaonan |
| description | Tensegrity robots excel in tasks requiring extreme levels of deformability and robustness. However, there are challenges in state estimation and payload versatility due to their high number of degrees of freedom and unconventional shape. This paper introduces a modular three-bar tensegrity robot featuring a customizable payload design. Our tensegrity robot employs a novel Quasi-Direct Drive (QDD) cable actuator paired with low-stretch polymer cables to achieve accurate proprioception without the need for external force or torque sensors. The design allows for on-the-fly stiffness tuning for better environment and payload adaptability. In this paper, we present the design, fabrication, assembly, and experimental results of the robot. Experimental data demonstrates the high accuracy cable length estimation ( |
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| subjects | Actuators Cables Formability Robot control Robots State estimation Stiffness Tensegrity Torque sensors (robotics) |
| title | Design of a Variable Stiffness Quasi-Direct Drive Cable-Actuated Tensegrity Robot |
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