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水下运载器声学性能预估

傅晓晗 付学志 王敏庆

傅晓晗, 付学志, 王敏庆. 水下运载器声学性能预估[J]. 水下无人系统学报, 2023, 31(6): 871-877 doi: 10.11993/j.issn.2096-3920.2022-0094
引用本文: 傅晓晗, 付学志, 王敏庆. 水下运载器声学性能预估[J]. 水下无人系统学报, 2023, 31(6): 871-877 doi: 10.11993/j.issn.2096-3920.2022-0094
FU Xiaohan, FU Xuezhi, WANG Minqing. Acoustic Performance Prediction of Undersea Vehicles[J]. Journal of Unmanned Undersea Systems, 2023, 31(6): 871-877. doi: 10.11993/j.issn.2096-3920.2022-0094
Citation: FU Xiaohan, FU Xuezhi, WANG Minqing. Acoustic Performance Prediction of Undersea Vehicles[J]. Journal of Unmanned Undersea Systems, 2023, 31(6): 871-877. doi: 10.11993/j.issn.2096-3920.2022-0094

水下运载器声学性能预估

doi: 10.11993/j.issn.2096-3920.2022-0094
基金项目: 陕西省自然科学基金资助项目(2021JLM-39)
详细信息
    作者简介:

    傅晓晗(1995-), 女, 在读博士,主要研究方向为噪声与振动控制

    通讯作者:

    王敏庆(1970-), 男, 博士, 教授, 主要研究领域为声信息处理与控制

  • 中图分类号: TJ630.34; U674.76

Acoustic Performance Prediction of Undersea Vehicles

  • 摘要: 随着深海捕捞和海洋牧场的发展, 运载器水下辐射噪声对鱼类等海洋生物的影响不可忽视。为评估水下运载器的辐射噪声对海洋生物的影响, 根据被动声呐方程和水下辐射噪声传播损失特性建立了运载器的安全工作半径计算模型, 量化了水下运载器的安全工作区域。以商用水下运载器G1和对动力系统进行了声学优化设计的G2为研究对象, 在声学性能试验的基础上分析了2种运载器的声辐射特性, 进一步分别计算、对比了2种运载器与海洋鱼类和水下设备之间的安全工作半径。研究表明, 运载器的辐射噪声由宽频噪声和线谱噪声组成, 低频线谱噪声是影响运载器声学性能的主要因素, 优化动力系统有效改进了运载器的安全工作半径, 降低了其对海洋生物的影响。文中工作可为海洋声学牧场的商用运载器声学性能评估及优化提供参考。

     

  • 图  1  声波吸收系数随频率变化曲线

    Figure  1.  Curve of acoustic absorption coefficient versus frequencies

    图  2  运载器辐射噪声指向性分析场点示意图

    Figure  2.  Field points for directional analysis of radiated noise of vehicle

    图  3  运载器垂直方向辐射噪声指向性

    Figure  3.  Directionality of radiation noise in vertical direction of avehicle

    图  4  运载器水平方向辐射噪声指向性

    Figure  4.  Directionality of radiation noise in horizontal direction of avehicle

    图  5  水下辐射噪声测试方案示意图

    Figure  5.  Undersea radiation noise test scheme

    图  6  测试系统示意图

    Figure  6.  Test system

    图  7  2种商用运载器噪声频谱

    Figure  7.  Noise spectrum of two commercial vehicles

    图  8  接收机性能曲线

    Figure  8.  Performance curves of a receiver

    图  9  2种水下运载器安全工作半径对比

    Figure  9.  Comparison of safe working radius of two vehicles

    表  1  G1线谱噪声SNR

    Table  1.   Signal-to-noise ratio of line spectrum noise of vehicle G1

    频点SNR/dB频点SNR/dB
    ${f_{{\text{1 - 1}}}}$37.9${f_{{\text{1 - 4}}}}$60.2
    ${f_{{\text{1 - 2}}}}$52.9${f_{{\text{1 - 5}}}}$68.6
    ${f_{{\text{1 - 3}}}}$60.1${f_{{\text{1 - 6}}}}$64.3
    下载: 导出CSV

    表  2  G2线谱噪声SNR

    Table  2.   Signal-to-noise ratio of line spectrum noise of vehicle G2

    频点SNR/dB频点SNR/dB
    ${f_{2{\text{ - 1}}}}$28.9${f_{2{\text{ - 5}}}}$51.7
    ${f_{2{\text{ - 2}}}}$30.8${f_{2{\text{ - 6}}}}$58.4
    ${f_{2{\text{ - 3}}}}$49.4$ {f_{2{\text{ - }}7}} $85.3
    ${f_{2{\text{ - 4}}}}$55.2
    下载: 导出CSV
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出版历程
  • 收稿日期:  2022-12-09
  • 修回日期:  2022-12-18
  • 录用日期:  2023-04-07
  • 网络出版日期:  2023-11-17

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