Carbon/epoxy composite foot structure for biped robots

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Although aluminum structures are generally used for robot structures due to their high specific strength, aluminum feet for fast running biped robots are vulnerable to fatigue failure due to the low fatigue limit and low vibration damping of aluminum structures under repeated impact loadings on the feet. On the other hand, carbon/epoxy composites not only have a much higher specific fatigue limit but also have a higher material damping than that of aluminum. In this study, a carbon/epoxy composite foot structure of a biped robot was developed. The composite foot structure was designed for optimum performances such as weight saving, natural frequency, damping, and compliance for vibration isolation. Then its performances were analytically and experimentally obtained and compared with those of an aluminum foot structure. Finally, an optimum configuration of the composite foot structure was suggested for the reliable dynamic performance of the biped robot.
Publisher
ELSEVIER SCI LTD
Issue Date
2016-04
Language
English
Article Type
Article
Citation

COMPOSITE STRUCTURES, v.140, pp.344 - 350

ISSN
0263-8223
DOI
10.1016/j.compstruct.2016.01.022
URI
http://hdl.handle.net/10203/209351
Appears in Collection
ME-Journal Papers(저널논문)
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