文档介绍：第 29 卷第 3 期声学技术 ,
2010 年 6 月 Technical Acoustics Jun., 2010
燃料电池车空调压缩机声振特性分析
何吕昌 1,左曙光 1,李林 1,申秀敏 1,张敬芬 2
(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)
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。
关键词:燃料电池车;空调压缩机;声振特性;增强材料
中图分类号:+93 文献标识码:A 文章编号:1000-3630(2010)-03-0309-06
DOI 编码:-
Analysis of air-pressor vibro-acoustic
characteristics of fuel cell vehicle
HE Lü-chang1, ZUO Shu-guang1, LI Lin1, SHEN Xiu-min1, ZHANG Jing-fen2
(1. Clean Energy Automotive Engineering Center, Tongji University, Shanghai 201804, China; 2. Shanghai henkel Co., Ltd, Shanghai 201324, China)
Abstract: The vibro-acoustic characteristics of fuel cell vehicle are measured as air-pressor runs inde-
pendently. And it is clarified that the air-pressor is one of main vibrational noise sources because the
bracket resonance due to its lower inherent frequency consistent with pressor operating frequency causes body
panels vibration to generate the noise from air-pressor to car interior. Using reinforced material to en-
hance the stiffness of pressor bracket can avoid its resonance effectively, and the car interior noise can be re-
duced by more than 2dB.
Key words