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Indexed by : Journal paper

Document Code : 20101412827270

First Author : Shuming Chen

Author : 马一功,曹晓琳,刘波,昝建明

Date of Publication : 2010-03-15

Journal : Journal of Jilin University (Engineering and Technology Edition)

Included Journals : EI  

Affiliation of Author(s) : Jilin University

Place of Publication : China

Discipline : 工学

Funded by : “863”国家高技术研究发展计划项目(2006AA110102-3)； 吉林省科技发展计划重点项目(20040332-1)；

Document Type : J

Volume : 40

Issue : 2

Page Number : 335-340

ISSN : 16715497

Key Words : vehicle engineering; car interior noise; statistical energy analysis( SEA);modal density; noise pr

Teaching and Research Group : State Key Laboratory of Automotive Dynamic Simulat

CN : 22-1341/T

Abstract : The fundamentals of the modal density was introduced, and a semi-empirical formula calculating the modal density when the surface curvature changes was deduced. A statistical energy analysis(SEA) model was built for a certain domestic car, and the modal densities of the simplified car subsystems were calculated. The modal density of each subsystem was also calculated with the finite element analysis(FEA) method. Both results were compared each other. The 1/3 octave band spectrums of the car interior driver ear-vicinity noise were predicted at speed 100 km/h by both the subsystem modal density

First-Level Discipline : 机械工程

Translation or Not : no