通海系统管路阻尼处理降噪技术研究

机械设备通过管路系统产生的辐射噪声是合成潜艇总噪声的重要来源之一,随着浮筏装置的广泛应用,机械设备通过机脚、基座引起的振动噪声已得到较好的控制,同时原来被掩盖的管路系统引起的振动噪声逐渐突出。通过在管壁外敷设阻尼结构吸收并耗散振动能量是降低管路系统振动噪声的有效方法之一。通过对通海系统管路敷设阻尼胶带的插入损失进行了理论分析和试验研究,结果表明,管路表面敷设阻尼胶带能有效降低沿管路传递的振动,对于降低沿管路传播的振动噪声从而增强舰船的隐蔽性具有重要意义。

Research on Damping Material Used in Sea Pipeline Systems

Radiation noise from machinery equipment through the pipe system is one of the most important noise sources of submarines.As the extensive applications of floating rafts,the radiation noise from machinery equipment through foundation has already been well controlled.But radiation noise through pipe systems is becoming serious gradually now.The damping tape attached to the pipe＇s surface can absorb vibration energy effectively.It is one of the effective means for reducing vibration and noise of the pipe systems.In this paper,the theoretical analysis and experimental study of the transmission loss of the damping tape are carried out.It is found that this method can effectively reduce the vibration and noise transmitted from the pipeline systems.Result of this research has significance for increasing the concealment of nuclear submarines.