空调风管系统减振降噪技术

在船舶与海洋平台中,空调管路系统噪声是舱室噪声的主要来源之一,风机与管路元件流动噪声通过管路系统与管口传递至舱室,风机振动通过管路传递至甲板引起结构辐射噪声。本文开展空调通风系统噪声源及其传递路径分析,在掌握主要影响因素与规律的基础上开展消声布风器、微孔消声器与管路弹性吊架等减振降噪元器件的设计与仿真分析,取得了优于传统元件的降噪效果,为船舶空调管路系统及舱室噪声控制提供技术支撑。

Research on vibration and noise control technology of air conditioning pipeline system

On ship and offshore platform, the noise of air-conditioning system is one of the main sources of cabin noise.The flow-noise of fan and pipeline elements is transmitted to cabin through pipeline and outlet.And vibration of fan is transmitted to deck through pipeline, which causes structural radiation noise.This paper carries out the analysis of noise source and transmission path of air conditon and air conditioning and vetilation system.On the basis of mastering the main influencing factors and rules, the desigh and simulation analysis of noise reduction components such as silencing air distributor, pipeline muffler and elastic hanger are carried out.The noise reduction effection of these components is better than that of traditional ones, which provides technical support for noise control of ship air conditioning pipeline system and cabin.