燃料电池车空调压缩机声振特性分析  

Analysis of air-conditioner compressor vibro-acoustic characteristics of fuel cell vehicle

作　　者：何吕昌[1] 左曙光[1] 李林[1] 申秀敏[1] 张敬芬[2] 

机构地区：[1]同济大学新能源汽车工程中心,上海201804 [2]上海汉高股份有限公司,上海201324

出　　处：《声学技术》2010年第3期309-314,共6页Technical Acoustics

基　　金：国家863计划电动汽车重大专项资助项目(2006AA11A101);2005年曙光计划项目资助(05SG22);汉高项目资助

摘　　要：在空调压缩机独立运行下,通过实验明确了空调压缩机是车内外振动噪声的主要来源之一;支架因在压缩机的工作频率附近存在低阶固有频率而发生共振,引起车身板件振动并向车内辐射噪声,是车内噪声的主要来源。针对支架的整体刚度偏低、力传递率过大、在压缩机振动激励下发生共振的特点,使用增强材料增强了压缩机支架的整体刚度,有效的避免了支架的共振,降低了车内噪声2dB以上。The vibro-acoustic characteristics of fuel cell vehicle are measured as air-condition compressor runs inde-pendently.And it is clarified that the air-condition compressor is one of main vibrational noise sources because the bracket resonance due to its lower inherent frequency consistent with the compressor operating frequency causes body panels vibration to generate the noise from air-condition compressor to car interior.Using reinforced material to en-hance the stiffness of the compressor bracket can avoid its resonance effectively,and the car interior noise can be re-duced by more than 2dB.

关 键 词：燃料电池车 空调压缩机 声振特性 增强材料 

分 类 号：U467.493[机械工程—车辆工程]