Research on the Acoustical Characteristics of High Frequency Resonant Cavity and Its Application
作者单位：Changan Auto Global R&D Center State Key Laboratory of Vehicle NVH and Safety Technology
会议名称：《2015中国汽车工程学会年会》
会议日期：2015年
学科分类：080704[工学-流体机械及工程] 08[工学] 0807[工学-动力工程及工程热物理]
关 键 词：high frequency resonant cavity transmission loss high frequency noise surge noise sound quality
摘 要：In this paper,the silencing mechanism and application of high frequency resonant cavity are studied for the purpose of controlling high frequency noise in automobile intake ***’s found that the number and diameter of perforated holes,and the resonant cavity volume are the major factors which influence the transmission loss of single cavity and high frequency resonant ***,the surge noise of a car is successfully reduced through utilizing a multi-cavity parallel high frequency resonant cavity,and thus the sound quality is improved.