催化器隔热罩优化设计  

Optimum Design on Catalyst Heat-shield

作　　者：杜鹏 阮仁宇 倪成鑫 Du Peng;Ruan Renyu;Ni Chengxin(Anhui Jianghuai Automobile Group Co., Ltd, Anhui Hefei 230601)

机构地区：[1]安徽江淮汽车集团股份有限公司,安徽合肥230601

出　　处：《汽车实用技术》2017年第14期77-78,共2页Automobile Applied Technology

摘　　要：文章基于有限元法对某发动机的催化器隔热罩进行了模态分析,并通过增加固定点的方式对隔热罩的模态进行了提升,计算结果显示,优化后的隔热罩一阶模态值从132.6Hz提升到232.89Hz,结果满足评价指标。The article had a modal analysis on catalyst heat-shield of a certain engine based on finite element method.It is byadding fixing points that first order modal frequency of heat-shield was improvement.The results showed that first ordermodal frequency increased from132.6Hz to232.89Hz after heat-shield was optimized.At last it met the evaluation standard.

关 键 词：隔热罩 模态分析 一阶模态频率 

分 类 号：U467[机械工程—车辆工程]