Type
ArticleDate
2017-01-24Permanent link to this record
http://hdl.handle.net/10754/622939
Metadata
Show full item recordAbstract
This paper presents an investigation of the dynamics of microbeams under multiple harmonic electrostatic excitation frequencies. First, the response of a cantilever microbeam to two alternating current (AC) source excitation is examined. We show by simulations the response of the microbeam at primary resonance (near the fundamental natural frequency) and at secondary resonances (near half, superharmonic, and twice, subharmonic, the fundamental natural frequency). A multimode Galerkin method combined with the Euler-Bernoulli beam equation, accounting for the nonlinear electrostatic force, has been used to develop a reduced order model. The response of the cantilever microbeam to three AC source excitation is also investigated and shown as a promising technique to enhance the bandwidth of resonators. Finally, an experimental study of a clamped-clamped microbeam is conducted, demonstrating the multi-frequency excitation resonances using two, three, and four AC sources.Citation
Ibrahim A, Jaber N, Chandran A, Thirupathi M, Younis M (2017) Dynamics of Microbeams under Multi-Frequency Excitations. Micromachines 8: 32. Available: http://dx.doi.org/10.3390/mi8020032.Sponsors
This research has been funded through King Abdullah University of Science and Technology (KAUST).Publisher
MDPI AGJournal
MicromachinesAdditional Links
http://www.mdpi.com/2072-666X/8/2/32ae974a485f413a2113503eed53cd6c53
10.3390/mi8020032
Scopus Count
Except where otherwise noted, this item's license is described as This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).