The invention relates to a ship underwater radiation noise testing device and method, the ship underwater radiation noise testing device comprises a main cable, a plurality of net-shaped flow guide covers and a hydrophone, one end of the main cable is provided with a floating ball, and the other end is provided with a weight; the multiple net-shaped flow guide covers are connected to the main mooring rope through connecting ropes and safety ropes. The hydrophone is fixed in the center of the net-shaped flow guide cover through a plurality of pull ropes; wherein pressure-resistant buoyancy blocks are arranged on the net-shaped flow guide covers, so that the net-shaped flow guide covers are in a zero-buoyancy floating state in water, and the multiple net-shaped flow guide covers are arranged on the main mooring rope at equal intervals and depths. The net-shaped flow guide cover is in a water drop shape and is made of a steel net, and interference caused by shaking of the main cable due to wave shaking can be restrained; low-frequency interference caused by underwater water flow impact can be reduced; the problem that the low-frequency test signal-to-noise ratio is insufficient under the low sea condition can be solved.

    本发明涉及一种舰船水下辐射噪声测试装置及测试方法,包括主缆绳、多个网状导流罩和水听器,主缆绳一端设置有浮球,另一端设置有压铁;多个网状导流罩通过连接绳和保险绳连接在主缆绳上;水听器通过多个拉绳固定在网状导流罩中心;其中,网状导流罩上设置有耐压浮力块,使得得网状导流罩在水中处于零浮力漂浮状态,多个网状导流罩等间隔深度布置在主缆绳上。本发明网状导流罩呈水滴形,且采用钢网制作,能够抑制波浪抖动所带来的主缆绳抖动造成的干扰;能够降低水下水流冲击所造成的低频干扰;可以解决低海况下低频测试信噪比不足的问题。


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    Title :

    Ship underwater radiation noise testing device and testing method


    Additional title:

    一种舰船水下辐射噪声测试装置及测试方法


    Contributors:
    SHI SHANG (author) / PANG YEZHEN (author) / LI ZHICHAO (author) / PEI YUQING (author) / YU XIAOLI (author) / SHEN QI (author) / GENG JIAAO (author)

    Publication date :

    2024-11-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G01H MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES , Messen von mechanischen Schwingungen oder Ultraschall-, Schall- oder Infraschallwellen / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / B63C LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS , Zuwasserlassen, Trockenstellen, Docken oder Bergen von Schiffen



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