Commonly used mufflers are divided into:
The dissipative muffler is an absorption type. The sound absorbing material is arranged in the pipeline to consume and attenuate the noise of the airflow passing through the pipeline, and is mainly used for eliminating high frequency airflow noise.
The reactive muffler is a resonance type, which uses geometric shapes to repeatedly reflect, resonate, interfere, and superimpose sound in the pipeline to consume sound energy, and is mainly used to eliminate sound at a specific frequency.
The impedance compound muffler is a muffler made by combining the above two principles, and has the advantages of both the resistive and the resistant muffler, and the muffling frequency band is relatively wide.
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