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This paper investigates the effects of ankle joint stiffness on gait selection of dynamic bipedal walking with flat feet. We present a dynamic bipedal walking model with upper body, flat feet and compliant joints. The model can generate the three common gaits of dynamic bipedal walking. Simulation experiments are carried out to verify the analytical results and provide further results on gait comparison...
This paper presents a bio-inspired below-knee exoskeleton to assist human walking. Different from the passive orthotic devices, the proposed exoskeleton includes powered compliant ankle and toe joints, which can output sufficient power to help the one with exoskeleton relearn normal walking gaits. We first propose a passivity-based dynamic bipedal model to analyze the effects of segmented foot and...
This paper presents a seven-link dynamic walking model that is more close to human beings. We add hip actuation, upper body, flat feet and compliant ankle joints to the model. Walking sequence of the flat-foot walker has several sub-streams that form bipedal walking with dynamic series of phases, which is different with the motion of round-foot and point-foot models. We investigate the characteristics...
This paper presents a passive dynamic walking model with segmented feet. The model extends the Simplest Walking Model with the addition of flat feet and torsional springs based compliance on ankle joints and toe joints, to achieve stable walking on a slope driven by gravity. The push-off phase includes foot rotations around toe joint and around toe tip, which shows a great resemblance to human normal...
This paper investigates three-dimensional quasi-passive dynamic bipedal walking on level ground with flat feet and compliant ankles. We present pointmass dynamic models to analyze and tune the characteristics of the bipedal gait. Simulations are carried out to study the effects of flat feet and ankle stiffness on the stability in both sagittal plane and frontal plane. Based on the theoretical analysis,...
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