一、概述 随着环境科学及环境保护技术的发展,工业噪声控制问题已经引起国内外广泛的注意,对噪声产生的机理及传播特性、噪声的控制技术及噪声对人体的危害等方面进行大量的研究,取得了显著的进展。而在噪声控制技术中,消声器的设计与应用又是降低空气动力设备进排气口辐射或沿管道传递噪声的有效措施。国外较早就开始了消声器的研究设计工作,也有不少生产消声器的专业公司,不但大量生产各种定型化系列化的消声器,而且不断研究新产品,发展新系列。而国内直至60年代虽然也开展过一些消声器的 I. Overview With the development of environmental science and environmental protection technologies, the problem of industrial noise control has drawn wide attention both at home and abroad. A great deal of research has been done on the mechanism and propagation characteristics of noise, the noise control technology and the harm of noise to the human body Research, made remarkable progress. In the noise control technology, the design and application of the muffler is also an effective measure to reduce the radiation emitted by the aerodynamic equipment into the exhaust port or along the pipe. Earlier foreign countries began the muffler research and design work, there are many professional production muffler company, not only mass production of various series of fixed muffler, but also continue to study new products, the development of new series. Although the country until the 60s have also carried out some muffler