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http://dx.doi.org/10.5302/J.ICROS.2004.10.11.1006

Analytical Modeling of Carbon Nanotube Actuators  

염영일 (포항공과대학교 기계공학과)
박철휴 (포항공과대학교 기계공학과)
Publication Information
Journal of Institute of Control, Robotics and Systems / v.10, no.11, 2004 , pp. 1006-1011 More about this Journal
Abstract
Carbon nanotubes have outstanding properties which make them useful for a number of high-technology applications. Especially, single-walled carbon nanotube (SWNT), working under physical conditions (in aqueous solution) and converting electrical energy into mechanical energy directly, can be a good substitute for artificial muscle. The carbon nanotube structure simulated in this paper is an isotropic cantilever type with an adhesive tape which is sandwiched between two SWNTs. For predicting the geometrical and physical parameters such as deflection, slope, bending moment and induced force with various applied voltages, the analytical model for a 3 layer bimorph nanotube actuator is developed by applying Euler-Bernoulli beam theory. The governing equation and boundary conditions are derived from energy Principles. Also, the brief history of carbon nonotube is overviewed and its properties are compared with other functional materials. Moreover, an electro-mechanical coupling coefficient of the carbon nanotube actuator is discussed to identify the electro-mechanical energy efficiency.
Keywords
carbon nanotube; actuator; bucky paper; Euler-Bernoulli model; SWNT;
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Times Cited By KSCI : 1  (Citation Analysis)
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