TY - GEN
T1 - Electrothermally tunable bridge resonator
AU - Hajjaj, Amal Z.
AU - Ramini, Abdallah
AU - Alcheikh, Nouha
AU - Al Hafiz, Md Abdullah
AU - Younis, Mohammad I.
PY - 2016/1/1
Y1 - 2016/1/1
N2 - This paper demonstrates experimentally, theoretically, and numerically a wide-range tunability of an in-plane clampedclamped microbeam, bridge, and resonator compressed by a force due to electrothermal actuation. We demonstrate that a single resonator can be operated at a wide range of frequencies. The microbeam is actuated electrothermally, by passing a DC current through it. We show that when increasing the electrothermal voltage, the compressive stress inside the microbeam increases, which leads eventually to its buckling. Before buckling, the fundamental frequency decreases until it drops to very low values, almost to zero. After buckling, the fundamental frequency increases, which is shown to be as high as twice the original resonance frequency. Analytical results based on the Galerkin discretization of the Euler Bernoulli beam theory are generated and compared to the experimental data and to simulation results of a multi-physics finite-element model. A good agreement is found among all the results.
AB - This paper demonstrates experimentally, theoretically, and numerically a wide-range tunability of an in-plane clampedclamped microbeam, bridge, and resonator compressed by a force due to electrothermal actuation. We demonstrate that a single resonator can be operated at a wide range of frequencies. The microbeam is actuated electrothermally, by passing a DC current through it. We show that when increasing the electrothermal voltage, the compressive stress inside the microbeam increases, which leads eventually to its buckling. Before buckling, the fundamental frequency decreases until it drops to very low values, almost to zero. After buckling, the fundamental frequency increases, which is shown to be as high as twice the original resonance frequency. Analytical results based on the Galerkin discretization of the Euler Bernoulli beam theory are generated and compared to the experimental data and to simulation results of a multi-physics finite-element model. A good agreement is found among all the results.
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U2 - 10.1115/DETC2016-59892.pdf
DO - 10.1115/DETC2016-59892.pdf
M3 - Conference contribution
AN - SCOPUS:85007391769
T3 - Proceedings of the ASME Design Engineering Technical Conference
BT - 21st Design for Manufacturing and the Life Cycle Conference; 10th International Conference on Micro- and Nanosystems
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 2016 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2016
Y2 - 21 August 2016 through 24 August 2016
ER -