Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2011-04-24
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
6 pages, 5 figures, submitted in a journal for review
Scientific paper
Electrostatically actuated nanotubes and nanowires have many promising applications as nano-switches, ultra sensitive sensors and signal processing elements. These devices can be modelled as slender beams with circular cross-section. In this paper, effects of residual stress on static and dynamic characteristics of a cylindrical nanobeam are presented. Galerkin based multi-modal reduced order model technique has been used to solve the governing differential equation. The equation has also been solved numerically by collocation method for verification of the results. The effects of higher modes in reduced order modelling have been investigated. The analysis shows that the residual stress significantly influence the static and dynamic characteristics of the nanobeam. In particular, the results show that resonating frequency tunability increases significantly under the presence of compressive residual stress. In addition, an inherent resonating frequency stability mechanism under temperature variation in nanobeam resonators has also been explored.
Bhushan A.
Inamdar Mandar M.
Pawaskar D. N.
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