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1.前言舰艇舱室中噪音污染非常严重,有的超过100分贝;严重地影响舰员的健康和舰艇的战斗力。舰艇的声场控制主要从两方面入手,一是声源控制,一是传播控制。在声源控制上又有许多途径。如果振源来自机械振动,则采取减振的措施。双层隔振的研究已在我院开展,这是一种有效的途径。本文则从另一途径——消音、吸振高分子材料的研究方面介绍一下国内外的研究情况和我们所做的工作。
1. INTRODUCTION Noise pollution in warship cabins is very serious, some exceeding 100 dB; it seriously affects the health of the crew and the combat effectiveness of the warships. The control of the sound field of a ship mainly starts from two aspects. One is the control of the sound source, and the other is the propagation control. There are many ways to control sound sources. If the vibration source comes from mechanical vibration, take measures to reduce vibration. Double-layer vibration isolation research has been carried out in our hospital, which is an effective way. This article from another way - silencers, absorbing polymer materials research at home and abroad about the research and our work done.