2013
DOI: 10.1016/j.apacoust.2012.06.007
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Studies on an automobile muffler with the acoustic characteristic of low-pass filter and Helmholtz resonator

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Cited by 58 publications
(25 citation statements)
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“…Take the Helmholtz resonator (HR) as an example. Although it can achieve a suppression effect in the low-frequency range, its effective silencing band is always too narrow [4,[18][19][20]. In contrast, the expansion-type silencer can achieve a broadband character of noise reduction, yet its silencing frequency is often too high [21,22].…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…Take the Helmholtz resonator (HR) as an example. Although it can achieve a suppression effect in the low-frequency range, its effective silencing band is always too narrow [4,[18][19][20]. In contrast, the expansion-type silencer can achieve a broadband character of noise reduction, yet its silencing frequency is often too high [21,22].…”
Section: Introductionmentioning
confidence: 99%
“…It can be seen from the open public literature that there has been a considerable number of noise reduction methods available for the piping systems, e.g., (i) arrangement of elastic joints, corrugated pipe/bellows, or other components to the piping systems [5][6][7][8]; (ii) installation of a muffler elbow and micro-perforated plates [9,10]; (iii) avoidance of short-radius elbow, sharp bends, and branch pipes in pipeline [11]; (iv) laying damping materials [9]; (v) active control technologies [12][13][14][15]; and installation of pipe mufflers [16][17][18][19], etc. Particularly, installation of a pipe muffler is the most widely used means among these methods.…”
Section: Introductionmentioning
confidence: 99%
“…15,[18][19][20] The sound pressure and the normal particle velocities upstream and downstream of the muffler can be expressed as a transfer matrix with the next equation…”
Section: Theoretical Backgroundmentioning
confidence: 99%
“…A muffler with an interconnecting hole on the tail pipe of automobile muffler was proposed to improve its acoustic performance based on the typical structure. Acoustic performances of the muffler were studied in frequency and time domain [13]. Kore et al [14] analyzed flow field characteristics and acoustic properties of confrontational muffler based on a computational fluid dynamics method.…”
Section: Introductionmentioning
confidence: 99%