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原文传递 Study on the Damping Plate and Its Layout Optimization

题名：	Study on the Damping Plate and Its Layout Optimization
正文语种：	中文
作者：	Zhou Wei Li Jingfu Wang Jixiang Qiao Xin
作者单位：	Auto R&D Center CAE Section
关键词：	acoustic-structure coupled model damping damping and noise response curve contribution analysis
摘要：	In order to improve the acoustic characteristics of the cab, acoustic-structure coupled model of the cab was estab- lished. Through the analysis of the acoustic response to actual stimulus, the acoustic response curve of the driver's inner earwas ob- tained. Based on the reversibility principle of transfer function, the driver's inner ear was stimulated in order to observe the modal re- sponse animation of plates, and thus to lay the preliminary damping plates. For the purpose of pinpointing the optimal location of damp- ing plates and realizing damping and noise reduction effectively, contribution analysis was made on the plates, based on which the lay- out of damping plates was optimized. The optimized layout of damping plates was more reasonable, which could lower the sound pressure of the driver's inner ear by 2%under the noise above 200Hz compared with the preliminary scheme, and thus realizing more effective noise reduction and more precise layout of damping plates.
会议日期：	20171024
会议举办地点：	上海
会议名称：	第19届亚太汽车工程年会暨2017中国汽车工程学会年会
出版日期：	1024-01-20
母体文献：	第19届亚太汽车工程年会暨2017中国汽车工程学会年会论文集