BAND STRUCTURES OF 2-D SONIC CRYSTALS WITH SQUARE LATTICES BASED FINITE ELEMENT METHOD
Sonic crystals are composite materials made of periodic distributions of inclusions embedded in a matrix. Due to the periodicity, these materials may exhibit complete acoustic band gaps within which sound and vibrations are forbidden. In this paper, the band gap characteristics of a 2-D square array of hollow cylinders and spit-ring hollow cylinders embedded in air are investigated by COMSOL? finite element method, and then verified by plane wave expansion method. The results are very consistent, proving that COMSOL? can be employed for the full characterization of the structures.
Sonic crystal Band gap COMSOL PWE
Bin WU Zong-fa LIU Cun-fu HE
College of Mechanical Engineering & Applied Electronics Technology, Beijing University of Technology College of Planning and Architectural Engineering, Henan University of Science and Technology, Luoya
国际会议
深圳
英文
518-520
2011-12-09（万方平台首次上网日期，不代表论文的发表时间）