关键词: 进气噪声；消音器；进气消音器设计；消音器共振

Abstract: In recent years, with the sharp increase in the number of automobile in China, automotive noise is become one of the main sources of urban noise pollution, directly affecting the physical and mental health of residents. The problem of automotive noise pollution urgently needs to be solved. Among the sources of automotive noise, intake noise is extremely complex due to the gas fluid dynamics characteristics, so there is no fixed noise reduction measure. In order to solve this problem, a kind of staggered composite impedance silencer is designed, which integrates air filter and Silencer. It can achieve both dust removal and noise reduction functions without generating additional resonance noise under the excitation of periodic intake pulse noise.

Key words: Intake noise; Silencer; Design of intake muffler; Silencer resonance