Next Article in Journal
Magnetically Driven Micromachines Created by Two-Photon Microfabrication and Selective Electroless Magnetite Plating for Lab-on-a-Chip Applications
Previous Article in Journal
A PZT Actuated Triple-Finger Gripper for Multi-Target Micromanipulation
Article Menu
Issue 2 (February) cover image

Export Article

Open AccessArticle
Micromachines 2017, 8(2), 32; doi:10.3390/mi8020032

Dynamics of Microbeams under Multi-Frequency Excitations

1
Mechanical Engineering Department, The State University of New York at Binghamton, 4400 Vestal Parkway E., Binghamton, NY 13902, USA
2
Physical Sciences and Engineering (PSE), King Abdullah University of Science and Technology, 23955-6900 Thuwal, Saudi Arabia
3
Department of Aeronautical Engineering, Annasaheb Dange College of Engineering and Technology, Sangli, Maharashtra 416301, India
*
Author to whom correspondence should be addressed.
Academic Editors: Stefano Mariani and Nam-Trung Nguyen
Received: 23 November 2016 / Revised: 27 December 2016 / Accepted: 16 January 2017 / Published: 24 January 2017
View Full-Text   |   Download PDF [4571 KB, uploaded 24 January 2017]   |  

Abstract

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. View Full-Text
Keywords: multi-frequency; secondary resonances; superharmonic; electrostatic multi-frequency; secondary resonances; superharmonic; electrostatic
Figures

Figure 1

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).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Ibrahim, A.; Jaber, N.; Chandran, A.; Thirupathi, M.; Younis, M. Dynamics of Microbeams under Multi-Frequency Excitations. Micromachines 2017, 8, 32.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Micromachines EISSN 2072-666X Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top