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• W2517750521 abstract "Reaction wheel systems (RWSs) are beneficial in improving bipedal walking stability, and theoretical work has shown that they can also improve the efficiency of preplanned walking motions. This work provides the first demonstration of RWS-related efficiency improvements on a physical robot and identifies the energy-saving paradigm. Gaits for a five-link planar biped are generated via trajectory optimization with and without reaction wheels. Comparisons of the resulting system behavior show a 5-10% efficiency advantage for robots with an RWS under typical walking conditions and a larger advantage near regions of marginal dynamic feasibility. The savings are mainly accomplished by enabling trajectories with better joint motor utilization, not by minimizing impact losses or acting as a kinetic energy recovery system. The RWS also improves centroidal angular momentum regulation, with the reduction in centroidal angular momentum amplitude reaching 30% at high speeds. Simulations and experiments with a five-link planar biped validate the efficiency improvements seen in optimization. This demonstrates the viability of using efficient inertial actuators to improve the efficiency of complex walking robots." @default.
• W2517750521 created "2016-09-16" @default.
• W2517750521 creator A5067699324 @default.
• W2517750521 creator A5073029557 @default.
• W2517750521 date "2016-10-01" @default.
• W2517750521 modified "2023-09-27" @default.
• W2517750521 title "Reaction Wheel Actuation for Improving Planar Biped Walking Efficiency" @default.
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• W2517750521 doi "https://doi.org/10.1109/tro.2016.2593484" @default.
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