摘要
文章为某MPV设计了碳纤维发动机罩,通过HyperMesh建立了其有限元分析模型,通过Isight进行全因子DOE实验设计和多目标优化,确定了其最优铺层顺序。仿真分析结果表明:与传统钢制发罩相比,发罩总重量减轻了44.9%,而且,发罩扭转刚度提升了35%,侧向刚度位移减小10.6%,锁钩刚度位移减小27.4%,间隙段差减小55.4%,翼尖刚度位移减小30.1%,一阶约束模态频率提升43.3%。
The carbon fiber hood was designed for an MPV,and its finite element analysis model was established by HyperMesh.The full-factor DOE experiment design and multi-objective optimization were carried out by Isight,and the optimal sequence of carbon fiber lamination was determined.The simulation results show that,compared with the traditional steel hair hood,the total weight of the hair hood is reduced by 44.9%,and the torsion stiffness of the hair hood is increased by 35%,the lateral stiffness displacement is reduced by 10.6%,the lock hook stiffness displacement is reduced by 27.4%,the gap interval difference is reduced by 55.4%,the wing tip stiffness displacement is reduced by 30.1%,and the first-order constraint mode frequency is increased by 43.3%.
作者
王运辉
罗茂康
莫贵文
WANG Yunhui;LUO Maokang;MO Guiwen(AISN Automotive Technology Development Co.,Ltd.,Guangxi Liuzhou 545000)
出处
《汽车实用技术》
2021年第15期92-94,共3页
Automobile Applied Technology
关键词
碳纤维复合材料
发动机罩
铺层设计
多目标优化
轻量化
Carbon fibre composite
Engine cover
Laminate composites
Multi-objective optimization
Light weight
