舰船异常噪声振动的识别和消除研究

Study on the Identification and Elimination of Abnormal Noise and Vibration of Warships

噪声源识别是舰船振动噪声控制工程界的难题之一。以舰船异常噪声振动消除的实例为研究对象,从舰船异常噪声振动的形成,识别方法,控制途径等进行理论探讨和研究。首次提出了"参数法"和"频谱法"识别噪声源,并经实例验证,取得消除舰船异常噪声振动的工程应用效果,对提高舰船声隐身性能具有重要作用。

Noise source identification is one of the difficult problems in noise and vibration control of warships. In order to identify and eliminate the abnormal noise and vibration of warships, the cause of formation, the identification method and control approach of the abnormal noise and vibration of warships are studied theoretically and experimentally.The parameter method and the spectral method are proposed for the noise source identification and verified by examples.The engineering application effect for eliminating the vibration of the ship＇s abnormal noise is obtained. This study may play an important role in acoustic stealth of warships.