Attenuation Characteristics of Sound Wave in Silicon Dioxide ER Fluid

Abstract:

The sound attenuation in ER fluid was experimentally studied. The results show that sound attenuation of ER fluid could be adjusted by the particle concentration of ER fluid and the intensity of electric field. Amplitude of sound wave in ER fluid increases with the increasing of particle concentration and field intensity; on the other hand, the attenuation of sound wave decreases with the increasing of propagation distance, as well as the particle concentration and field intensity. The experimental results indicate that the solidification effect of ER fluid is beneficial to the propagation of sound wave.

• Periodical: Applied Mechanics and Materials (Volumes 239-240)
• Pages: 76-79
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.239-240.76
• Online since: December 2012
• Authors: Ji Jun Fan, Nan Hui Yu
• Keywords: Attenuation, ER Fluid, Silicon Dioxide, Sound Wave

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