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.
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)
出处
《汽车实用技术》
2017年第14期77-78,共2页
Automobile Applied Technology
关键词
隔热罩
模态分析
一阶模态频率
Catalyst Heat-Shield
Modal analysis
First Order Modal Frequency
