Scholarlink

<p>This work introduces a diamond-shaped shrinking device that manipulates elastic wave propagation to produce illusion effects. According to the coordinate transformation, the device undergoes uniform stretching and compression along the <i>x</i>- and <i>y</i>-axes. For special geometric features, material parameters remain spatially invariant and exhibit no singular values. Although these homogeneous parameters simplify device design, they remain anisotropic. According to effective medium theory, the continuous anisotropic parameters can be approximated by discrete layered structures composed of homogeneous isotropic materials. The proposed configuration comprises alternating layers of Acrylonitrile Butadiene Styrene (ABS), Polydimethylsiloxane (PDMS), and piezoelectric (PZT) patches. Numerical simulations demonstrate that the shrinking device achieves stable and efficient performance in the 1400–2400&#xa0;Hz frequency range.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Diamond-Shaped Shrinking Device by Elastic Wave Metamaterial Plate and Active Control

  • 期刊论文

  • 发表日期：

    2026年1月15日

查看全文
  • Li Ning,
  • Gui-Jiao Wu,
  • Yu-Xing Sun,
  • Yang-Mian Wang,
  • Peng Wang,
  • Yi-Ze Wang

摘要

This work introduces a diamond-shaped shrinking device that manipulates elastic wave propagation to produce illusion effects. According to the coordinate transformation, the device undergoes uniform stretching and compression along the x- and y-axes. For special geometric features, material parameters remain spatially invariant and exhibit no singular values. Although these homogeneous parameters simplify device design, they remain anisotropic. According to effective medium theory, the continuous anisotropic parameters can be approximated by discrete layered structures composed of homogeneous isotropic materials. The proposed configuration comprises alternating layers of Acrylonitrile Butadiene Styrene (ABS), Polydimethylsiloxane (PDMS), and piezoelectric (PZT) patches. Numerical simulations demonstrate that the shrinking device achieves stable and efficient performance in the 1400–2400 Hz frequency range.