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- W2911804969 abstract "Aiming at the frequency spectrum characteristics of diesel generator noise, simulation study and physical experiment are made, in this paper, for the structure design of diesel generator mufflers by means of theoretical analysis and GT-POWER simulation, and the noise reduction performance of the designed diesel generator mufflers is theoretically analysed. The results show that elliptical cross-section mufflers show almost the same muffling effect as square cross-section mufflers, while square cross-section mufflers are more suitable for mass production; the length of the first cavity and the overlapped section of the insertion pipe present a remarkable noise reduction on low- and mid-range frequency; shortening the distance between the 1/4 wavelength pipe and the main pipe's confluence is more conducive to noise reduction; the addition of dissipative materials improves the muffling performance. Based on the above structure, a simulation model of impedance composite muffler was designed, with its A-weighting noise level dropped from the original 92.2 dB to 59.7 dB, thus achieving a good noise reduction effect." @default.
- W2911804969 created "2019-02-21" @default.
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- W2911804969 date "2019-01-01" @default.
- W2911804969 modified "2023-10-17" @default.
- W2911804969 title "Simulation-based structural design of diesel generator mufflers and their performance analysis" @default.
- W2911804969 doi "https://doi.org/10.1504/ijspm.2019.10018925" @default.
- W2911804969 hasPublicationYear "2019" @default.
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