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物理学报. 2004, 53(10): 3384-3388.
doi: 10.7498/aps.53.3384.
基于集中质量法的一维声子晶体弹性波带隙计算
- 收稿日期: 2003-11-13
- 修回日期: 2004-02-05
- 刊出日期: 2004-05-05
English Abstract
Lumped-mass method on calculation of elastic band gaps of one-dimensional phononic crystals
- Received Date:
13 November 2003
- Accepted Date:
05 February 2004
- Published Online:
05 May 2004
Abstract: With each unit cell replaced by finite cascaded massspring oscillators, 1D pho nonic crystals (PCs) can be simplified to an infinite periodic massspring chai n. Therefore, the elastic wave band structures of the 1D PCs can be calculated w ith a straightforward approach which we call lumpedmass method (LM). For compa rison, the band structures of the same 1D PC calculated with this method and the wellknown plane wave expansion method are both presented in this paper. The r esults of the two methods are in good agreement while the computation costs of L M method are much lower than that of PWE method.
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