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Effect of surface energy on nano-resonator dynamic behavior
Maani Miandoab, E ; Sharif University of Technology | 2016
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- Type of Document: Article
- DOI: 10.1016/j.ijmecsci.2016.09.031
- Publisher: Elsevier Ltd , 2016
- Abstract:
- Presented herein is a comprehensive analysis on the size-dependent dynamic behaviors of electrostatically actuated nano-resonator including surface stresses effect. To this end, partial differential equation of nano-resonator based on Gurtin–Murdoch and Euler–Bernoulli theories is converted to ordinary differential equation utilizing assumed mode method. Effect of applied DC voltage on stability and bi-stability of nano-resonator is investigated and it revealed that surface elasticity and stress affect the bi-stability region of nano-resonator. By plotting frequency response of the resonator, hardening and softening behavior of nano-resonator are analyzed and it is shown that surface effect may change the hardening and softening behavior of nano-resonators
- Keywords:
- Bi-stability ; Nano-resonator ; Softening hardening ; Surface elasticity theory ; Elasticity ; Electrostatic actuators ; Frequency response ; Hardening ; Ordinary differential equations ; Stability ; Applied dc-voltage ; Assumed-mode method ; Comprehensive analysis ; Dynamic behaviors ; Hardening and softening behaviors ; Nanoresonators ; Surface elasticities ; Surface stress ; Resonators
- Source: International Journal of Mechanical Sciences ; Volume 119 , 2016 , Pages 51-58 ; 00207403 (ISSN)
- URL: http://www.sciencedirect.com/science/article/pii/S0020740316302788?via%3Dihub