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<p>In this study, the vibro-acoustic response and sound transmission of functionally graded (FG) graphene origami (GOri)-enabled auxetic metamaterial (GOEAM) plates are investigated in the thermal environment. Three kinds of distribution patterns of GOri are considered. The governing equations of the FG-GOEAM plates are derived using Hamilton’s principle and the high-order shear deformation theory. Subsequently, the sound power level (SPL) under concentrated harmonic surface force exciation and the sound transmission loss (STL) under harmonic sound wave incidence are determined. Finally, the effect of weight fraction of GOri, H atom coverage, temperature, and layer number of the FG-GOEAM plates on SPL and STL are analyzed and discussed. This study contributes to the design and manufacturing of FG-GOEAM structures.</p>

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Vibro-acoustic response and sound transmission loss of functionally graded graphene origami-enabled auxetic metamaterial plates

  • 期刊论文

  • 发表日期：

    2025年8月26日

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  • Y. S. Li,
  • S. Li

摘要

In this study, the vibro-acoustic response and sound transmission of functionally graded (FG) graphene origami (GOri)-enabled auxetic metamaterial (GOEAM) plates are investigated in the thermal environment. Three kinds of distribution patterns of GOri are considered. The governing equations of the FG-GOEAM plates are derived using Hamilton’s principle and the high-order shear deformation theory. Subsequently, the sound power level (SPL) under concentrated harmonic surface force exciation and the sound transmission loss (STL) under harmonic sound wave incidence are determined. Finally, the effect of weight fraction of GOri, H atom coverage, temperature, and layer number of the FG-GOEAM plates on SPL and STL are analyzed and discussed. This study contributes to the design and manufacturing of FG-GOEAM structures.