Nanotechnology
Nanotechnology
3 years ago

Friction effect of stator in a multi-walled CNT-based rotation transmission system.

Qin, Cai, Shi, Zhang
The rotation transmission system made from co-axial multi-walled nanotubes (MWNT) has a function of regulating the input rotation from a nanomotor. The mechanism for the regulation is that the friction among the tubes during rotation governs the rotation of the rotors in the nanosystem. Integrating a rotary nanomotor and a nanobearing into a MWNT-based rotation transmission system, it is discovered that the stator (outer tube) provides relative greater friction on the rotors by penetrating the motor tube which has a higher stable rotational frequency. And the output rotation of the rotors in the system depends significantly on the temperature of the system as the rotor tubes are slightly longer than the motor tube. Briefly, at low temperature, say 8K, the rotors rotate synchronously with the motor. However, at high temperature, the rotors rotate slower than the motor with higher difference between their rotational frequencies. Hence, the output rotational frequencies can be adjusted by changing the temperature besides the input rotational frequency.

Publisher URL: http://doi.org/10.1088/1361-6528/aa930a

DOI: 10.1088/1361-6528/aa930a

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