收稿日期:
2023-07-06
修回日期:
2023-07-24
接受日期:
2023-08-08
出版日期:
2024-05-25
发布日期:
2023-08-24
通讯作者:
李桐
E-mail:tong@dlut.edu.cn
基金资助:
Mi XU, Zebei MAO, Bo WANG, Tong LI()
Received:
2023-07-06
Revised:
2023-07-24
Accepted:
2023-08-08
Online:
2024-05-25
Published:
2023-08-24
Contact:
Tong LI
E-mail:tong@dlut.edu.cn
Supported by:
摘要:
各向异性材料广泛存在于各种机械设备的承重构件中。与各向同性材料不同,各向异性材料中不同材料相的分布和方向,可以根据载荷条件调整承重构件的力学性能。本文提出了一种各向异性材料分布的优化方法,即等效变形模量(EDM)算法,以有效地优化各向异性薄板的承载能力。该算法实现了对薄板抗弯能力的多模态协同优化,解决了传统优化算法中特征值重叠的问题,在航空领域中将起到重要作用。以短纤维增强聚合物薄板的纤维取向优化为例,在不改变薄板质量和形状的前提下,与传统优化算法相比,EDM算法可以将临界屈曲载荷提高28.9%,将计算成本降低98.1%。此外,EDM算法还被应用于机身中形状不规则的承重构件设计中,并使其临界屈曲载荷提高27.2%~30.8%。
中图分类号:
许敉, 毛泽钡, 王博, 李桐. 快速优化薄板中各向异性材料分布的等效变形模量算法[J]. 航空学报, 2024, 45(10): 229273-229273.
Mi XU, Zebei MAO, Bo WANG, Tong LI. An equivalent⁃deformation⁃modulus algorithm for fast optimization of anisotropic material distribution in thin plates[J]. Acta Aeronautica et Astronautica Sinica, 2024, 45(10): 229273-229273.
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