Analysis of acoustic transmission loss and radiated sound.
The muffler, represented by the automobile exhaust silencer, refers to a silencer (silencer) installed in a part that has ducts serving as pathways for sound and fluids. The sources of noise from this muffler can vary, but it often seems to be relatively low-frequency sounds associated with the explosion noise from the engine.
To accommodate these low frequencies, the design incorporates acoustic elements such as expansion-type, resonator-type, branch pipes, and expansion resonance types that can resonate at low-frequency ranges, as well as interference-type, absorption-type, and resistance-type acoustic elements that are effective in a wide frequency range or mid-to-high frequency range.
- The importance of coupled analysis considering acoustic transmission loss and sound propagation to external areas
- For the design of high-performance automotive mufflers
If you are interested in acoustic design, please take a moment to read this.
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