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Huaxin Liu

3 accepted papers

2021

Vertical Jumping by a Legged Robot With Upper and Lower Leg Bi-Articular Muscle-Tendon Complexes

RA-L 2021

The bi-articular muscle-tendon complex (MTC) in an animal's leg allows a transfer of mechanical power between adjacent joints and exertion of a large force at the toes. It is capable of storing and releasing elastic energy efficiently during motions. In our previous studies, we proposed mechanisms o

Cited by 15SourceScholar
2019

Design of Robot Leg with Variable Reduction Ratio Crossed Four-bar Linkage Mechanism

IROS 2019poster

Generally, large knee joint torque is required when a leg is flexed. However, the large torque motor will increase the robot size and total weight. Also, a large reduction ratio gear box to realize the large torque will decrease output speed and lower backdrivability of the joint. It makes the robot…

Cited by 16SourceScholar
2016

Cat-inspired mechanical design of self-adaptive toes for a legged robot

IROS 2016poster

Cats have protractible claws to fold their tips to keep them sharp. They protract claws while hunting and pawing on slippery surfaces. Protracted claws by tendons and muscles of toes can help cats anchoring themselves steady while their locomotion trends to slip and releasing the hold while they ret…

Cited by 10SourceScholar