期刊
INTERNATIONAL JOURNAL OF ROBOTICS RESEARCH
卷 25, 期 9, 页码 903-912出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/0278364906069150
关键词
biorobotics; legged locomotion; hexapod; compliance
类别
We describe the design features that underlie the operation of iS-prawl, a small (0.3 kg) autonomous, bio-inspired hexapod that runs at 15 body-lengths/second (2.3 m/s). These features include a tuned set of leg compliances for efficient running and a light and flexible power transmission system. This transmission system permits high speed rotary power to be converted to periodic thrusting and distributed to the tips of the rapidly swinging legs. The specific resistance of iSprawl is approximately constant at 1.75 for speeds between 1.25 m/s and 2.5 m/s. Examination of the trajectory of the center of mass and the ground reaction forces for iSprawl show that it achieves a stable, bouncing locomotion similar to that seen in insects and in previous (slower) bio-inspired robots, but with an unusually, high stride frequency for its size.
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