Nonlinear Coupling Design for Dynamic Humanoid Legs
Design and Analysis of a Nonlinear Parallel Mechanism Coupling for Dynamic Humanoid Legs
This paper introduces a nonlinear knee-ankle coupling for humanoid legs, reducing distal inertia and improving dynamic performance. The design redistributes load and enhances efficiency through shared actuator capacity.
Source: arXiv Robotics — research abstracts · Read original article ↗
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What the source reports
Publisher-reported claims, with original evidence. These results have not been independently verified by RoboSignal.
Reported numbers
effective reflected mass
0.37
leg mass
6
Source excerpts and review record
Automatically extracted; no manual editorial approval recorded.
hem in simulation and on hardware. The design shows that the shared transmission lets both joints draw on each other's actuator capacity by easing the knee's peak torque demand under load and the ankle's peak speed demand during fast motion. %Together With the leg's proximal actuator placement, the leg achieves an effective reflected mass of 0.37kg at the foot for a 6kg leg, demonstrating very low distal leg inertia
Open source S4
Source：arXiv Robotics — research abstracts · arxiv.org