Abstract A generalized analytical approach for the propagation of Bleustein-Gulyaev wave in a piezoelectric material loaded on its surface with a viscoelastic fluid is established in this paper. The Bleustein-Gulyaev waveguide surface is subjected to various glycerol concentrations. The Maxwell and Kelvin-Voigt models are used to describe the viscoelasticity of this fluid. Exact dispersion equation is obtained in the cases of both electrically short circuit and open circuit by solving the equilibrium equations of piezoelectric materials and the Stokes equation of viscoelastic fluid. The effect on the phase velocity and attenuation for several frequencies is highlighted. The influence of key parameters such as substrate thickness and fluid thickness is also studied. These investigations can serve as benchmark solution in design of Bleustein-Gulyaev wave sensors.

中文翻译：

---

加载粘弹性流体的有限压电材料中的 Bleustein-Gulyaev 波

摘要 本文建立了一种布卢斯坦-古利亚耶夫波在其表面加载的粘弹性流体压电材料中传播的广义分析方法。Bleustein-Gulyaev 波导表面受到各种甘油浓度的影响。Maxwell 和 Kelvin-Voigt 模型用于描述这种流体的粘弹性。通过求解压电材料的平衡方程和粘弹性流体的斯托克斯方程，得到了电短路和开路情况下的精确色散方程。突出显示了对几个频率的相速度和衰减的影响。还研究了基板厚度和流体厚度等关键参数的影响。