汽车碳纤维复合材料控制臂轻量化设计及验证

doi:10.16638/j.cnki.1671-7988.2023.018.025

汽车实用技术 ›› 2023, Vol. 48 ›› Issue (18): 130-135.DOI: 10.16638/j.cnki.1671-7988.2023.018.025

• 工艺·材料 • 上一篇

汽车碳纤维复合材料控制臂轻量化设计及验证

解莹，郭永奇*，何庆时，邹锐

营口理工学院机械与动力工程学院

出版日期:2023-09-30 发布日期:2023-09-30
通讯作者: 郭永奇
作者简介:解莹（1989－），女，硕士，助教，研究方向为机械设计与有限元分析，E-mail:247861112@qq.com。
基金资助:
营口理工学院校级科研项目（YBL202122）。

Lightweight Design and Verification of Automobile Carbon Fiber Composite Control Arm

XIE Ying, GUO Yongqi*, HE Qingshi, ZOU Rui

School of Mechanical and Power Engineering, Yingkou Institute of Technology

Online:2023-09-30 Published:2023-09-30
Contact: GUO Yongqi

摘要/Abstract

摘要： 为了有效利用碳纤维复合材料的力学特性，采用碳纤维复合材料对某汽车控制臂进行了轻量化设计。首先建立了原钢质控制臂有限元模型，通过模态实验验证了其准确性，并对钢质控制臂进行了刚度分析和强度分析。然后基于钢质控制臂几何特征进行碳纤维复合材料控制臂几何重构，考虑其质量、振动特性、刚度、强度和工艺约束等，对碳纤维复合材料控制臂进行自由尺寸优化、尺寸优化和铺层次序优化，获得了最佳碳纤维复合材料铺层形状、厚度和铺层顺序。最后通过与原钢质控制臂性能对比可知，控制臂纵向刚度和侧向刚度分别增加了 13.6%和 1.4%，同时强度和振动特征均大幅提升，质量降低了 63.7%，取得了显著的轻量化效果。

关键词: 控制臂；碳纤维复合材料；尺寸优化；铺层次序优化；轻量化

Abstract: In order to effectively utilize the excellent mechanical properties of carbon fiber composites, the lightweight design of an automobile control arm is carried out by using carbon fiber composite material. Firstly, the finite element model of the original steel control arm is established, and its accuracy is verified through modal experiments, and the stiffness and strength analysis of the steel control arm are carried out. Then, based on the geometric characteristics of the steel control arm, the geometric reconstruction is carried out for the carbon fiber composite control arm, and considering the mass, vibration characteristics, stiffness, strength and process constraints, the optimization design of them are carried out by free size optimization, size optimization and laying sequence optimization, and the optimal carbon fiber composite with layer shape, thickness and layering sequence is obtained. Finally, by comparing with the performance of the original steel control arm, it is concluded that the longitudinal stiffness and lateral stiffness of the control arm increase by 13.6% and 1.4% respectively. Meanwhile, the strength and vibration characteristics are greatly improved, and the weight is reduced by 63.7%, achieving a significant lightweight effect.

Key words: Control arm; Carbon fiber composite; Size optimization; Laying sequence optimization; Lightweight

解莹. 汽车碳纤维复合材料控制臂轻量化设计及验证[J]. 汽车实用技术, 2023, 48(18): 130-135.

XIE Ying. Lightweight Design and Verification of Automobile Carbon Fiber Composite Control Arm[J]. Automobile Applied Technology, 2023, 48(18): 130-135.

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汽车碳纤维复合材料控制臂轻量化设计及验证

Lightweight Design and Verification of Automobile Carbon Fiber Composite Control Arm

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