基于ERP方法对整车加速噪声的优化设计  

Optimization Design of Vehicle Acceleration Noise based on ERP Method

作　　者：傅薇[1] 董丹丹[1] 李朕[1] FU Wei;DONG Dandan;LI Zhen

机构地区：[1]泛亚汽车技术中心有限公司,上海201208

出　　处：《上海汽车》2022年第10期45-49,62,共6页Shanghai Auto

摘　　要：车身钣金的低频振动对车内噪声影响巨大,钣金的声辐射能量是控制车内低频噪声的重要因素。文章利用声音的互逆性原理,采用频响法计算单一子系统的ERP,可以快速获得车身主要钣金的声辐射贡献量,由此驱动优化方案的设计。The low-frequency vibration of the body panel has a great influence on the interior noise.The acoustic radiation power of the body panel is an important factor to control the interior low-frequency noise.The frequency response method is used to calculate the ERP of a single subsystem based on the reciprocal principle of sound,which can quickly obtain the acoustic radiation contribution of the main body panel,thereby driving the design of the optimization scheme.

关 键 词：低频噪声 声辐射能量 ERP方法 

分 类 号：U467.493[机械工程—车辆工程]