On carbon nanotube resonators

Dumitru I. Caruntu; Cone S. Salinas Trevino

doi:10.1117/12.882028

13 April 2011 On carbon nanotube resonators

Dumitru I. Caruntu, Cone S. Salinas Trevino

Proceedings Volume 7981, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2011; 798116 (2011) https://doi.org/10.1117/12.882028
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2011, San Diego, California, United States

Abstract

This paper deals with electrostatically actuated Carbon NanoTubes (CNT) cantilevers for sensor applications. There are three kinds of forces acting on the CNT cantilever: electrostatic, elastostatic, and van der Waals. The van der Waals forces are significant for values of 50 nm or lower of the gap between the CNT and the ground plate. As both forces, electrostatic and van der Waals, are nonlinear, and the CNT electrostatic actuation is given by AC voltage, the CNT dynamics is nonlinear parametric. The method of multiple scales is used to investigate the system under soft excitations and/or weakly nonlinearities. The frequency-amplitude and frequency-phase behavior are found in the case of primary resonance.

Citation Download Citation

Dumitru I. Caruntu and Cone S. Salinas Trevino "On carbon nanotube resonators", Proc. SPIE 7981, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2011, 798116 (13 April 2011); https://doi.org/10.1117/12.882028

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