基于拓扑优化的挤压铸造转向节轻量化研究
Lightweight Design of Squeeze Cast Steering Knuckle Based on Topology Optimization
陈云 1程飞 1周澳华 1杨鹏 2董其娟 3梁乘鹏4
作者信息
- 1. 武汉理工大学交通与物流工程学院,武汉 430063
- 2. 山东宏和轻量化科技有限公司,邹平 256200
- 3. 山东省先进铝基材料与技术重点实验室,滨州 256600
- 4. 魏桥国科(滨州)科学工程产业技术研究院有限公司,滨州 256600
- 折叠
摘要
为了实现汽车车身的轻量化,建立铝合金转向节最大实体模型,运用SIMP插值模型进行多工况拓扑优化,并结合挤压铸造成形要求完成了铝合金转向节的结构优化.研究表明,各工况下转向节所受到的最大应力远小于屈服极限,并且质量较球墨铸铁减少60.9%.经T6热处理后,转向节本体取样的平均抗拉强度为311.03 MPa,屈服强度为252.13 MPa,伸长率为7.45%,力学性能均大于产品的规定值,满足产品性能要求.
Abstract
To achieve lightweight design of vehicle body,an aluminum alloy steering knuckle solid model was estab-lished.The SIMP interpolation model was utilized for multi-operating condition topology optimization,and the struc-tural optimization was accomplished by considering forming requirements of squeeze casting.The results indicate that the maximum stress suffered by aluminum alloy steering knuckle under various operating conditions is significantly lower than yield limit,resulting in a weight reduction of 60.9%compared to the ductile cast iron steering knuckle.After T6 heat treatment,the aluminum alloy steering knuckle exhibits an average tensile strength of 311.03 MPa,yield strength of 252.13 MPa,and elongation of 7.45%,which surpass the specified values,meeting performance requirements.
关键词
拓扑优化/转向节/挤压铸造/轻量化Key words
Topology Optimization/Steering Knuckle/Squeeze Casting/Lightweight引用本文复制引用
出版年
2024
NETL
NSTL
维普
万方数据