文章摘要
邓明晰.有限声束在固体板表面的声反射[J].声学技术,1998,(2):86~90
有限声束在固体板表面的声反射
Reflection of acoustic beam on the surface of solid-plate
投稿时间:1997-05-27  修订日期:1997-09-18
DOI:
中文关键词: 有限声束  固体板  声反射
英文关键词: acoustic beam  solid-plate  acoustic reflection
基金项目:
作者单位
邓明晰 后勤工程学院物理教研室, 重庆 400042 
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中文摘要:
      采用将有限声束分解为一系列平面波的方法,对有限声束在液体-固体板-液体结构中的声反射问题进行了分析和计算。当有限声束以平面波反射系数相位为180°时的入射角入射时,在固体板表面反射的声束沿板表面存在显着的移动和展宽现象。本文的有关结果,对进一步研究有限声束在板状结构表面的声反射具有积极意义。
英文摘要:
      Analysis and numerical computation have been performed for the reflection of acoustic beam on the solid-plate surface of layered structure: liquid-solid plate-liquid. The results indicate that the reflected beam will extremely move and expand along the surface of solid-plate, once incident angle of acoustic beam equals the angle in which the phase of reflection coefficient of plane wave is 180° The analysis method in this paper is of significance for further studying the reflection of acoustic beam on the surface of layered structure.
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