Abstract
Vibration of a liquid droplet is easily controlled by the Rayleigh surface acoustic wave (SAW). In the vibration of a liquid droplet, two cases are considered: free vibration and forced vibration when it is excited without and with SAW excitation, respectively. For the free vibration, the theoretical and experimental results have already been reported. In the forced vibration, when input excitation was increased, we had determined experimentally that vibration of a liquid droplet shows two nonlinear phenomena. One is, with the increase in SAW input voltage, resonance frequency decreases and vibration amplitude exhibits jump phenomenon. The other, in addition to the fundamental frequency, second and third harmonics, and 1/2 and 3/2 subharmonics are observed. In this report, we explain the two nonlinear phenomena qualitatively using the Duffing equation including the term of a nonlinear spring.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.