Hu G, Tang L, Banerjee A, Das R. Meta-structure with piezoelectric element for simultaneous vibration suppression and energy harvesting. ASME. J. Vib. Acoust. 2016. doi:10.1115/1.4034770.
http://vibrationacoustics.asmedigitalcollection.asme.org/article.aspx?articleid=2556146
Congratulations to Guobiao! well done!