拓扑优化方法及其在运载工程中的应用与展望
Topology Optimization Approaches and Its Application and Prospect in Transportation Engineering
高强 1王健 1张严 2郑旭阳 3吕昊 4殷国栋1
作者信息
- 1. 东南大学机械工程学院 南京 211189
- 2. 武汉科技大学冶金装备及其控制教育部重点实验室 武汉 430081
- 3. 重庆长安望江集团有限公司 重庆 401120
- 4. 亚普汽车部件股份有限公司 扬州 225009
- 折叠
摘要
拓扑优化作为一种先进的结构优化方法,其本质是在给定载荷和边界条件下通过寻求设计域内材料的最优分布形式而获得性能最优的结构拓扑形式.近年来,随着优化算法和计算机科学的不断发展,结构拓扑优化在航空航天、汽车、船舶等运载工程有广泛的应用前景.基于理论研究层面,探讨离散体和连续体结构拓扑优化方法及其特点.针对拓扑优化在航空航天、汽车、船舶等运载工程的具体应用,指出结构拓扑优化存在的缺点及其推广所面临的挑战.同时,探讨国内外拓扑优化工业软件开发应用的研究现状和发展趋势.目前,拓扑优化面临的主要问题是在处理大规模运载工程结构优化的迭代中,需要进行多次有限元分析,增加计算空间和时间的复杂度.针对此情况介绍以等几何分析及机器学习为代表的新学科方向,以改善拓扑优化设计的不足,从而缩短运载装备的设计周期,并对未来的研究趋势进行初步探讨.
Abstract
As an advanced structural optimization approach,the essence of topology optimization is to obtain the structural topology configurations with the best performance by seeking the optimal distribution of materials in the design domain under given load and boundary conditions.In recent years,with the continuous development of optimization algorithms and computer science,structural optimization technology has a wide application prospect in aerospace,automobile,ship and other transportation engineering.Based on the theoretical research level,topology optimization approaches and characteristics of discrete and continuous structures are discussed.Then by considering the specific applications of topology optimization in aerospace,automobile,ship and other transportation engineering,the shortcomings of structural topology optimization and the challenges faced by their popularization are pointed out.At the same time,the present situation and development trend of topology optimization industrial software development and application from home and abroad are discussed.At present,the main problem faced by topology optimization is that in the iterative process of large-scale transportation engineering structure optimization,multiple finite element analysis is required which increases the complexity of calculation space and time.By considering the situation,the new discipline direction represented by isogeometric analysis and machine learning to improve the deficiency of topology optimization design is introduced,so as to shorten the design cycle of transportation equipment.and A preliminary discussion on the research trend in the future is also given.
关键词
拓扑优化/运载工程/结构设计/力学性能Key words
topology optimization/transportation engineering/structure design/mechanical properties引用本文复制引用
基金项目
国家自然科学基金青年基金(52102421)
汽车安全与节能国家重点实验室开放基金(KFZ2202)
中央高校基本科研业务费专项(3202002201C3)
出版年
2024
NETL
NSTL
万方数据