重庆理工大学学报（自然科学版）2016，Vol.30Issue(9)：26-32,7.DOI:10.3969/j.issn.1674-8425(z).2016.09.004
车内噪声的数值化分析与降噪设计
Numerical Analysis and Design to Lower Vehicle Interior Noise
摘要
Abstract
In view of the general formula for the internal sound field of a ruled structure,calculation formula for determinant parameter of sound pressure response level was derived using FEM (finite element method).Taking the structure and acoustic infinite model of a passenger car body as an example,the determinant parameter of the roof part in the low frequency body was calculated.In order to decrease the determinant parameter,an improvement program of the car body was provided. The interior noise of both the original body and the improved body was calculated using acoustic software.The sound pressure level curves for driver and passengers in first three rows were analyzed. It was confirmed that the solution to achieve interior noise reduction based on calculation of determinant parameter of sound pressure level of the roof part was feasible.关键词
客车车身/声压响应幅度判定参数/有限元方法/声压级曲线Key words
car body/determinant parameter of sound pressure response level/finite element method/sound pressure level curve分类
交通运输引用本文复制引用
杨杨,陆森林..车内噪声的数值化分析与降噪设计[J].重庆理工大学学报（自然科学版）,2016,30(9):26-32,7.基金项目
江苏省自然科学基金资助项目 （）
