[1]杨德森,张睿,时胜国.内部声激励下圆柱壳低阶模态声振特性研究[J].哈尔滨工程大学学报,2017,38(08):1210-1215.[doi:10.11990/jheu.201612089]
 YANG Desen,ZHANG Rui,SHI Shengguo.Vibration and sound radiation analysis of low-order modes from cylindrical shell excited by an interior source[J].hebgcdxxb,2017,38(08):1210-1215.[doi:10.11990/jheu.201612089]
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内部声激励下圆柱壳低阶模态声振特性研究(/HTML)
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《哈尔滨工程大学学报》[ISSN:1006-6977/CN:61-1281/TN]

卷:
38
期数:
2017年08期
页码:
1210-1215
栏目:
出版日期:
2017-08-25

文章信息/Info

Title:
Vibration and sound radiation analysis of low-order modes from cylindrical shell excited by an interior source
作者:
杨德森12 张睿2 时胜国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):
YANG Desen12 ZHANG Rui2 SHI Shengguo12
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:
内部声激励低阶模态辐射效率声腔耦合圆柱壳声振特性
分类号:
U611.44
DOI:
10.11990/jheu.201612089
文献标志码:
A
摘要:
针对舱室空气噪声引起水下航行器的外辐射噪声问题,基于Flügge薄壳理论和Helmholtz波动方程,推导了机械点力源和内部点声源激励下有限长单层圆柱壳的振动方程,分析了声腔结构对声源辐射能量的影响,并通过数值仿真对比分析了机械点力源和内部点声源激励下圆柱壳低阶周向模态声振特性和传递损失。数值计算结果表明:机械点力源激励下,各阶周向模态均影响壳体的振动特性;内部点声源激励下,壳体振动主要由低阶周向模态主导,其声辐射效率更高,能量传递损失更大。该研究结果对水下航行器声学设计具有一定的参考价值。

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2016-12-23。
基金项目:长江学者和创新团队发展计划(IRT_16R17);国家自然科学基金资助项目(61601149).
作者简介:杨德森(1957-),男,教授,博士生导师,中国工程院院士;时胜国(1973-),男,教授,博士生导师.
通讯作者:时胜国,E-mail:shishengguo@hrbeu.edu.cn
更新日期/Last Update: 2017-08-28