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<p>In order to deal with the problem of low-frequency vibration and noise control in engineering, a new curved phononic crystal truss structure is constructed in this paper. The band gap characteristics are simulated by means of band structure analysis and vibration transmission analysis. Moreover, regulation rules of the band gap are analyzed. Numerical results demonstrate that through reasonable geometric parameter design and material distribution, a wide pseudo-band gap can be achieved. This curved phononic crystal truss structure can effectively suppress low-frequency vibration in both circumferential and radial directions.</p>

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Band gap properties of a curved phononic crystal truss structure

  • 期刊论文

  • 发表日期：

    2025年3月1日

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  • Feiyang He,
  • Yitong Zhang,
  • Denghui Qian,
  • Guo Wei

摘要

In order to deal with the problem of low-frequency vibration and noise control in engineering, a new curved phononic crystal truss structure is constructed in this paper. The band gap characteristics are simulated by means of band structure analysis and vibration transmission analysis. Moreover, regulation rules of the band gap are analyzed. Numerical results demonstrate that through reasonable geometric parameter design and material distribution, a wide pseudo-band gap can be achieved. This curved phononic crystal truss structure can effectively suppress low-frequency vibration in both circumferential and radial directions.