We present analytical and experimental investigation of an electrically actuated clamped-clamped microbeam under a two-source harmonic excitation. The first frequency is swept around the first mode of vibration where the second one is fixed. These microbeams are fabricated using polyimide as structural layer coated with nickel form top and chromium and gold layers from bottom. We demonstrate the excitation of additive and subtractive type resonance. We show that by properly tuning the frequency and the amplitude of the excitation force, the frequency bandwidth of the resonator is increased. Theoretically, we solved the eigenvalue problem for different axial forces to find the natural frequencies ratio that match the experimental values. Using Galerkin method, a reduced order model is derived to simulate the static and dynamic response of the device where using three symmetric mode shapes provided a good agreement with experimental data.
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ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
August 2–5, 2015
Boston, Massachusetts, USA
Conference Sponsors:
- Design Engineering Division
- Computers and Information in Engineering Division
ISBN:
978-0-7918-5711-3
PROCEEDINGS PAPER
Multifrequency Excitation of a Clamped-Clamped Microbeam Available to Purchase
Nizar R. Jaber,
Nizar R. Jaber
King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
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Abdallah Ramini,
Abdallah Ramini
King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
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Mohammad Younis
Mohammad Younis
King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
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Nizar R. Jaber
King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
Abdallah Ramini
King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
Mohammad Younis
King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
Paper No:
DETC2015-47150, V004T09A013; 6 pages
Published Online:
January 19, 2016
Citation
Jaber, NR, Ramini, A, & Younis, M. "Multifrequency Excitation of a Clamped-Clamped Microbeam." Proceedings of the ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. Volume 4: 20th Design for Manufacturing and the Life Cycle Conference; 9th International Conference on Micro- and Nanosystems. Boston, Massachusetts, USA. August 2–5, 2015. V004T09A013. ASME. https://doi.org/10.1115/DETC2015-47150
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