CAJ | 학술논문

采用三维声学有限元法研究消声器的进出气口轴向角度对消声器声学性能的影响规律。结果表明，在中低频段，轴向角度对消声器传递损失影响很大，当轴向角度为60度时，对传递损失的影响最为显著；改进后的消声器改善了原消声器的消声性能。由于消声器进出气口轴向角度对消声性能的影响，这为消声器的设计提供了借鉴。
채용삼유성학유한원법연구소성기적진출기구축향각도대소성기성학성능적영향규률。결과표명，재중저빈단，축향각도대소성기전체손실영향흔대，당축향각도위60도시，대전체손실적영향최위현저；개진후적소성기개선료원소성기적소성성능。유우소성기진출기구축향각도대소성성능적영향，저위소성기적설계제공료차감。
Three-dimensional acoustic finite element method was employed to investigate the effect of the axial angle of the inlet and outlet on the acoustic attenuation performance of the muffler. The results show that the axial angle of the in-let and outlet has a great effect on the transmission loss of the muffler at low and mid frequencies. The improved muffler has the best acoustic performance for 60° axial angle, which provides a good advice for the design of the muffler.