国外振动噪声有源控制技术发展现状  

Developing situation on active control of vibration and noise

作　　者：刘小玲[1] 王旭[1] 郭莹[1] 刘亚凤[1] 

机构地区：[1]中国船舶信息中心信息资源部,北京100192

出　　处：《舰船科学技术》2011年第4期151-155,共5页Ship Science and Technology

摘　　要：随着经济的发展,噪声污染已成为工业社会主要关心的问题。传统的噪声控制主要采用被动的方法,如使用阻尼材料、隔振、吸振。被动控制在中高频段能起到很好的效果,但在低频段效果很不理想。随着电子技术的发展,作为用来替代被动控制以减少低频段噪声的有源控制方法出现了,并且逐渐成为现代振动噪声控制领域的研究热点。本文主要介绍了有源控制技术的重要性,以及该技术在美国、英国和澳大利亚等国家的发展现状。With the development of the economy,noise pollution is more and more realized to be a major concern in modern industrial societies.Traditionally,the reduction of structure-borne sound is achieved by means of passive methods.These methods include using damping materials,vibration isolation,and vibration absorber.Passive techniques give good performance in the mid and high frequency range.Unfortunately,the added mass or volume required to reduce low frequency noise is often impractical.With the advances in digital computers,active control methods have emerged as practical alternatives to passive methods for reducing unwanted noise in the low frequency range.Active noise control has become a research hotspot in the field of modern vibration and noise control.This paper presents the importance of the active noise control,then analyses the development of active noise control in America,the UK and Australia.

关 键 词：噪声有源控制 智能弹簧 选择性阻尼 

分 类 号：U661.44[交通运输工程—船舶及航道工程]