中国物理B ›› 2023, Vol. 32 ›› Issue (4): 44301-044301.doi: 10.1088/1674-1056/ac9783

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Nonlinear wave propagation in acoustic metamaterials with bilinear nonlinearity

Shiqi Liang(梁诗琪)1, Jiehui Liu(刘杰惠)1, Yun Lai(赖耘)1,†, and Xiaozhou Liu(刘晓宙)1,2,‡   

  1. 1 Key Laboratory of Modern Acoustics, Institute of Acoustics and School of Physics, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China;
    2 State Key Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China
  • 收稿日期:2022-08-06 修回日期:2022-09-27 接受日期:2022-10-05 出版日期:2023-03-10 发布日期:2023-03-30
  • 通讯作者: Yun Lai, Xiaozhou Liu E-mail:laiyun@nju.edu.cn;xzliu@nju.edu.cn
  • 基金资助:
    Project supported by the National Key Research and Development program of China (Grant No. 2020YFA0211400), the State Key Program of the National Natural Science of China (Grant No. 11834008), the National Natural Science Foundation of China (Grant No. 12174192), the Fund from the State Key Laboratory of Acoustics, Chinese Academy of Sciences (Grant No. SKLA202008), and the Fund from the Key Laboratory of Underwater Acoustic Environment, Chinese Academy of Sciences (Grant No. SSHJ-KFKT-1701).

Nonlinear wave propagation in acoustic metamaterials with bilinear nonlinearity

Shiqi Liang(梁诗琪)1, Jiehui Liu(刘杰惠)1, Yun Lai(赖耘)1,†, and Xiaozhou Liu(刘晓宙)1,2,‡   

  1. 1 Key Laboratory of Modern Acoustics, Institute of Acoustics and School of Physics, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China;
    2 State Key Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China
  • Received:2022-08-06 Revised:2022-09-27 Accepted:2022-10-05 Online:2023-03-10 Published:2023-03-30
  • Contact: Yun Lai, Xiaozhou Liu E-mail:laiyun@nju.edu.cn;xzliu@nju.edu.cn
  • Supported by:
    Project supported by the National Key Research and Development program of China (Grant No. 2020YFA0211400), the State Key Program of the National Natural Science of China (Grant No. 11834008), the National Natural Science Foundation of China (Grant No. 12174192), the Fund from the State Key Laboratory of Acoustics, Chinese Academy of Sciences (Grant No. SKLA202008), and the Fund from the Key Laboratory of Underwater Acoustic Environment, Chinese Academy of Sciences (Grant No. SSHJ-KFKT-1701).

摘要: Nonlinear phononic crystals have attracted great interest because of their unique properties absent in linear phononic crystals. However, few researches have considered the bilinear nonlinearity as well as its consequences in acoustic metamaterials. Hence, we introduce bilinear nonlinearity into acoustic metamaterials, and investigate the propagation behaviors of the fundamental and the second harmonic waves in the nonlinear acoustic metamaterials by discretization method, revealing the influence of the system parameters. Furthermore, we investigate the influence of partially periodic nonlinear acoustic metamaterials on the second harmonic wave propagation, and the results suggest that pass-band and band-gap can be transformed into each other under certain conditions. Our findings could be beneficial to the band gap control in nonlinear acoustic metamaterials.

关键词: bilinear nonlinearity, phononic crystal, band-gap manipulation, nonlinear acoustic metamaterial

Abstract: Nonlinear phononic crystals have attracted great interest because of their unique properties absent in linear phononic crystals. However, few researches have considered the bilinear nonlinearity as well as its consequences in acoustic metamaterials. Hence, we introduce bilinear nonlinearity into acoustic metamaterials, and investigate the propagation behaviors of the fundamental and the second harmonic waves in the nonlinear acoustic metamaterials by discretization method, revealing the influence of the system parameters. Furthermore, we investigate the influence of partially periodic nonlinear acoustic metamaterials on the second harmonic wave propagation, and the results suggest that pass-band and band-gap can be transformed into each other under certain conditions. Our findings could be beneficial to the band gap control in nonlinear acoustic metamaterials.

Key words: bilinear nonlinearity, phononic crystal, band-gap manipulation, nonlinear acoustic metamaterial

中图分类号:  (Nonlinear acoustics)

  • 43.25.+y
43.25.Ed (Effect of nonlinearity on velocity and attenuation) 43.35.-c (Ultrasonics, quantum acoustics, and physical effects of sound)