The results indicated that the desired acoustic attenuation performance of air cleaner can be obtained by accommodating the length of extended pipes.
计算结果表明，可以通过调整内插管的长度来改善空气滤清器的消声性能。
参考来源 - 汽车发动机空气滤清器消声特性研究The comparison of the measurement results and the software calculations; validated that the calculated method of catalytic silencer is correct. Consequently, the acoustic attenuation performance can be calculated and analyzed.
使用B&K公司提供的阻抗管套件对用于发动机排气系统的催化转换器进行了传递损失测量，将实验测量结果与模拟计算结果进行了比较，验证了排气净化消声器声学特性计算方法的正确性，从而可对排气净化消声器的声学性能进行计算和分析。
参考来源 - 柴油机排气净化消声器声学性能研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The advantages and shortcomings of the three methods for the prediction of silencer acoustic attenuation performance are discussed.
通过算例分析和总结三种方法预测消声器声学性能的优缺点。
The 3-d numerical methods are used to predict the acoustic attenuation performance and flow resistance characteristics of internal combustion engine exhaust silencers.
使用三维数值计算方法预测内燃机排气消声器的声学性能和阻力特性。
Therefore, the present thesis will investigate in detail the calculation methods of acoustic attenuation performance of silencers and the acoustic characteristics of perforated elements.
本文针对消声器声学性能的计算方法和穿孔元件的声学特性开展系统研究。
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