Frontiers of Mechanical Engineering >
Existence of complete band gaps in 2D steel-water phononic crystal with square lattice
Received date: 05 Feb 2010
Accepted date: 06 Apr 2010
Published date: 05 Dec 2010
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This paper theoretically and experimentally studies the existence of complete band gaps in two-dimensional (2D) phononic crystal consisting of parallel steel rods in water with square lattice. The band structure of phononic crystal is calculated by a plane wave expansion (PWE) method. Based on the well-known ultrasonic immersion transmission technique, the overlapping transmission spectra of acoustic waves, a complete band gap, is experimentally measured along the two high-symmetry directions of the first irreducible Brillouin zone. There is a very good agreement between the experimental result and the range of frequencies of the complete band gap.
Cunfu HE , Huanyu ZHAO , Ruiju WEI , Bin WU . Existence of complete band gaps in 2D steel-water phononic crystal with square lattice[J]. Frontiers of Mechanical Engineering, 2010 , 5(4) : 450 -454 . DOI: 10.1007/s11465-010-0105-y
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