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提出一种可进行传递损失自补偿的串联消声器,并分析了扩张消声器的传递损失带通频率与亥姆霍兹消声器的传递损失带阻频率。为了对串联消声器的理论可行性进行讨论,进行了有限元建模仿真与实验验证,针对实验与仿真中出现的问题进行了理论分析,并提出了改进方案。通过对改进方案的有限元仿真验证,证明了串联互补消声器的可行性。
A tandem muffler that can carry out self-compensation of transmission loss is proposed. The band-pass frequency of the transmission muffler and the transmission loss band-stop frequency of the Helmholtz muffler are analyzed. In order to discuss the theoretical feasibility of the tandem muffler, finite element modeling and experimental verification are carried out. The problems in the experiment and simulation are theoretically analyzed and the improvement scheme is proposed. Through the finite element simulation of the improved scheme, the feasibility of series complementary muffler is proved.