| Autor: |
Anil K. Bajaj, Dimitrios Peroulis, Ashwin Vyas |
| Rok vydání: |
2007 |
| Předmět: |
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| Zdroj: |
Volume 1: 21st Biennial Conference on Mechanical Vibration and Noise, Parts A, B, and C. |
| DOI: |
10.1115/detc2007-35117 |
| Popis: |
We explore the use of a pedal shaped nonlinear microresonator designed with torsion and flexural modes in 1:2 internal resonance for mass sensing. The higher natural frequency in-plane flexural mode of the resonator is coupled nonlinearly through inertial coupling to the out-of-plane torsional mode with one-half natural frequency. When the flexural mode excited resonantly has response above a threshold, the torsional mode is excited. This response in torsional mode is highly sensitive to any mass perturbation that results in mistuning the two modes away from 1:2 resonance. The mistuning can drastically change the nonlinearly excited torsional response from non-zero amplitude to zero amplitude. The required increase in the actuation strength to reactivate the torsional motion can serve as a measure for the attached mass.Copyright © 2007 by ASME |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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