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一、引言 隔声罩是一种在声源附近用密闭罩把声源围闭起来使噪声不向外传的减噪措施。隔声罩有很多优点:加工简便、费用低、减噪量大、且对各种类型噪声源都能使用。所以,隔声罩现在已得到广泛采用,並有明显的减噪效果,特别在中、高频。对隔声罩的一般设计原则在噪声控制的文献中已有介绍,本文就不再详谈了。
I. INTRODUCTION The soundproof cover is a kind of noise reduction measures that surrounds the sound source by enclosing the sound source in the vicinity of the sound source so that the noise is not propagated. Sound insulation cover has many advantages: simple processing, low cost, large noise reduction, and for all types of noise sources can be used. Therefore, the sound insulation cover has now been widely used, and there is a significant noise reduction effect, especially in the high-frequency. The general design principles of noise enclosures have been described in the literature on noise control and will not be discussed in detail in this article.