外前围隔音垫设计及铝箔问题优化  

Design of Outer Dash Insulator and Optimization of Al Foil Issue

作　　者：温杰 杨双双 张健[2] 侯冲 卜虎 吴胜极 WEN Jie;YANG Shuangshuang;ZHANG Jian;HOU Chong;BU Hu;WU Shengji(SAIC General Motors Company Limited,Wuhan Branch,Wuhan 430200,China;Pan Asia Technical Automotive Center Company Limited,Shanghai 201208,China)

机构地区：[1]上汽通用汽车有限公司武汉分公司,湖北武汉430200 [2]泛亚汽车技术中心有限公司,上海201208

出　　处：《汽车实用技术》2023年第22期94-98,共5页Automobile Applied Technology

摘　　要：外前围隔音垫是保证整车噪音、振动和声振粗糙度(NVH)性能的重要零部件之一,但其表面无纺布无法承受过高温度,因此,通常需要根据热图在无纺布外表面覆盖一层铝箔,这就带来了铝箔开裂及边缘褶皱等常见的外观问题。文章结合实际生产过程中出现的典型案例,分析外前围隔音垫表面铝箔开裂及褶皱的原因,并从隔音垫零件的设计角度出发,对隔音垫的铝箔开裂等问题给出了各个阶段的优化解决方案,为后续同类型零件的设计开发及问题解决提供指导。The outer dash insulator is an important part to ensure the noise,vibration,harshness(NVH)performance of the vehicle.However,the non-woven fabric on its surface can not be tolerant of high temperature,so aluminum foil should be covered on its outer surface according to the heat map.This brings the aluminum foil cracking and edge wrinkles and other common appearance problems.Based on the typical cases in actual production process,this paper analyzes the causes of aluminum foil cracking,and from the perspective of the design of insulator,gives the optimization solutions for the aluminum foil cracking of outer dash insulator and other problems at various stages are presented,providing guidance for the subsequent design,development and problem solving of similar parts.

关 键 词：隔音垫 铝箔 NVH 

分 类 号：TU112.4[建筑科学—建筑理论]