| 声学覆盖层对锥柱组合结构水下振动噪声的影响 |
| |
| 引用本文： | 缪旭弘,庞福振. 声学覆盖层对锥柱组合结构水下振动噪声的影响[J]. 中国造船, 2011, 52(Z1) |
| |
| 作者姓名： | 缪旭弘 庞福振 |
| |
| 作者单位： | 1. 中国人民解放军92537部队,北京,100007
2. 哈尔滨工程大学船舶工程学院,黑龙江哈尔滨,150001 |
| |
| 摘 要： | 基于统计能量法研究声学覆盖层对锥柱组合结构水下振动噪声的影响.研究结果表明,覆盖层敷设方式、结构损耗因子对声学覆盖层抑振降噪效果有较大影响,当声学覆盖层敷设在结构振动主导传递途径中时,其对传递途径下游结构的抑振效果较为明显,而对振源及传递途径上游结构的振动影响不大,且其抑振降噪效果随敷设密度的增加而增大；损耗因子较小时,声能将从未敷设区域“泄漏”出来,出现“声泄漏”现象,导致声学覆盖层降噪效果下降；随着损耗因子的不断增大,“声泄漏”现象逐渐得到缓解,但声学覆盖层抑振降噪效果有所下降.
|
| 关 键 词： | 船舶、舰船工程 统计能量法 声学覆盖层 锥柱组合结构 水下振动噪声 损耗因子 声泄漏 |
Influence of Acoustic Coating on Underwater Vibration & Acoustic Characteristic of a Compound Cylindrical & Cone Structure |
| |
| MIAO Xuhong,PANG Fuzhen. Influence of Acoustic Coating on Underwater Vibration & Acoustic Characteristic of a Compound Cylindrical & Cone Structure[J]. Shipbuilding of China, 2011, 52(Z1) |
| |
| Authors: | MIAO Xuhong PANG Fuzhen |
| |
| Affiliation: | MIAO Xuhong 1,PANG Fuzhen 2(1.92537 Unit of People's Liberation Army,Beijing 100007,China,2.College of Shipbuilding Engineering,Harbin Engineering University,Harbin 150001,China) |
| |
| Abstract: | Influence of acoustic coating on the underwater vibration & acoustic characteristic of a compound cylindrical & cone structure(CCCS) is researched based on SEA(Statistical Energy Analysis) method.The result indicates that the arrangement of acoustic coating and damping loss factor of CCCS have significant influence on the capacity of vibration and noise reduction of acoustic coating to the CCCS.Acoustic coating can reduce the vibration and noise level of the CCCS.Vibration reduction effect is remarkable to ... |
| |
| Keywords: | ship engineering SEA method acoustic coating a compound cylindrical & cone structure underwater vibration & acoustic characteristics damping loss coefficient noise leaking |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
