Characterization of the Acoustic Materials
Noise absorption predictions for automobile interior trim components and materials have been always important in automotive industry.One purpose of this paper is to introduce how to measure the acoustic materials for having their sound absorption coefficients,using the impedance tube measurement,and then the test results will be compared for finding the differences of the sound absorption coefficients between these materials and discuss which is the key factor of the acoustic materials ” sound absorption coefficients.Additionally,the paper will go further to present the inverse methods through using ” AutoSEA2 ” to prove whether materials ” physical properties right or not and the materials” physical properties were finally confirmed,which is to help people know how to construct a data base of the acoustic materials that can be used for CAE analysis for NVH.
acoustic material sound absorption impedance tube measurement inverse method
Yang Zhong Mo Liqiong
Lifan Automobile Research Institue,LIFAN INDUSTRY(GROUP).,LTD
国内会议
上海
英文
1767-1772
2015-10-01（万方平台首次上网日期，不代表论文的发表时间）