Hybrid Carbon Nanotube Yarn as Artificial Muscles
J. Foroughi1, G.M. Spinks1, G.G. Wallace1, M. Lima2, R.H. Baughman2
1 University of Wollongong, Wollongong, Australia
2 University of Texas at Dallas, Dallas, USA
We designed guest-filled, twist-spun carbon nanotube yarns having useful topological complexity as
electrolyte-free muscles that provide fast, high- force, large-stroke torsional and tensile actuation.
Over a million reversible torsional and tensile actuation cycles are demonstrated, wherein a muscle
spins a rotor at an average 11,500 revolutions/minute or delivers 3% tensile contraction at 1,200
cycles/minute. This rotation rate is 20 times higher than previously demonstrated for an artificial
muscle and the 27.9 kW/kg power density during muscle contraction is 85 times higher than for
natural skeletal muscle.
ACTUATOR 2014 Manuscript B5.4
Publication date: 09/04/2015
Manuscript B5.4 published in Conference Proceedings ACTUATOR 2014
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