[1]华健,郑广赢,黄益旺,等.层状含气泡非饱和多孔介质的声反射与声透射[J].哈尔滨工程大学学报,2018,39(06):1032-1038.[doi:10.11990/jheu.201704006]
 HUA Jian,ZHENG Guangying,HUANG Yiwang,et al.Acoustic reflection and transmission of the layered gassy unsaturated porous medium[J].hebgcdxxb,2018,39(06):1032-1038.[doi:10.11990/jheu.201704006]
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层状含气泡非饱和多孔介质的声反射与声透射(/HTML)
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《哈尔滨工程大学学报》[ISSN:1006-6977/CN:61-1281/TN]

卷:
39
期数:
2018年06期
页码:
1032-1038
栏目:
出版日期:
2018-06-05

文章信息/Info

Title:
Acoustic reflection and transmission of the layered gassy unsaturated porous medium
作者:
华健12 郑广赢12 黄益旺12 王飞12
1. 哈尔滨工程大学 水声技术重点实验室, 黑龙江 哈尔滨 150001;
2. 哈尔滨工程大学 水声工程学院, 黑龙江 哈尔滨 150001
Author(s):
HUA Jian12 ZHENG Guangying12 HUANG Yiwang12 WANG Fei12
1. Acoustic Science and Technology Laboratory, Harbin Engineering University, Harbin 150001, China;
2. College of Underwater Acoustic Engineering, Harbin Engineering University, Harbin 150001, China
关键词:
非饱和多孔介质气泡层状反射透射多孔介质Biot波动方程
分类号:
O427
DOI:
10.11990/jheu.201704006
文献标志码:
A
摘要:
为了得到声波从水入射到含气泡非饱和多孔介质层的反射和透射规律,气泡对多孔介质声学特性的影响以及层状固体介质对声波的反射和透射一直是水声领域重要的研究课题。分析了基于气泡振动修正的Biot波动方程和弹性模量,将介质层中三种透射波的平面波解代入修正后的Biot波动方程,通过分析平面波垂直入射的边界条件推导了声波的反射系数和透射系数。数值分析表明,气泡的大小、含量以及介质层的厚度是影响声波在层状多孔介质声学特性的重要因素。当入射声波频率很低时,介质层尺度相比波长而言很小,呈现很好的透声性能;声波频率很高时,波长很小,透射系数和反射系数都呈现振荡趋势;而当声波频率在气泡共振频率附近时,气泡的共振引发层状多孔介质的高衰减,使得声波很难穿透。

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备注/Memo

备注/Memo:
收稿日期:2017-04-05。
基金项目:国家自然科学基金项目(11274078).
作者简介:华健(1991-),男,硕士研究生;黄益旺(1975-),男,教授,硕士生导师.
通讯作者:黄益旺,E-mail:huangyiwang@hrbeu.edu.cn
更新日期/Last Update: 2018-06-01