通常消除低、中频噪声,采用抗性消声器,消除中、高频噪声采用阻性消声器,而消除宽频带的噪声,则采用阻抗性复合式消声器。在设计和验算阻抗性复合式消声器时,计算消声器的频带消声量,是比较繁琐的,如果使用电算程序,则计算工作量大为简化,能迅速而精确地得出结果。 Usually, low and medium frequency noise is eliminated, and a resistive muffler is used to eliminate mid-high frequency noise using a resistive muffler, and to eliminate wideband noise, an impedance-based composite muffler is used. When designing and verifying an impedance composite muffler, it is cumbersome to calculate the muffler volume of the muffler. If the computer program is used, the calculation workload is greatly simplified, and the result can be obtained quickly and accurately.