Page 197 - 《爆炸与冲击》2026年第5期
P. 197

第 46 卷    第 5 期                   爆    炸    与    冲    击                       Vol. 46, No. 5
                2026 年 5 月                    EXPLOSION AND SHOCK WAVES                          May, 2026

               DOI:10.11883/bzycj-2025-0288


                           数据驱动点阵超材料多目标优化设计                                                  *


                                    1,3
                              肖李军 ,朱艳林 ,石高泉 ,李依男 ,李润枝 ,惠旭龙 ,张瑞刚 ,宋卫东                      1
                                                            1
                                                                                   2
                                                                    1
                                                                           3
                                             1
                                                    2
                                  (1. 北京理工大学爆炸科学与安全防护全国重点实验室,北京 100081;
                                         2. 晋西工业集团有限责任公司,山西 太原 030027;
                              3. 中国飞机强度研究所, 强度与结构完整性全国重点实验室,陕西 西安 710065)
                  摘要: 桁架类点阵超材料是一类超轻质承载吸能材料,在冲击防护领域具有广阔的应用前景。然而,由于点阵超
               材料细观构型参数空间庞大,且构型参数与力学响应之间存在复杂的非线性关系,其性能优化面临巨大挑战。针对上
               述问题,基于桁架类点阵超材料的细观结构特征,提出了一种高效的快速数字化建模方法,并利用 Python 脚本驱动
               Abaqus 仿真软件,实现了材料的批量化建模与仿真分析。在此基础上,通过有限元数值模拟建立了不同构型点阵超材
               料的准静态压缩性能数据集,并利用实验验证了数据集的可靠性。随后,训练了一个人工神经网络模型作为代理函
               数,并将其嵌入非支配排序遗传算法,对点阵超材料开展多目标优化设计,获得了具有高承载能力、高吸能特性以及
               兼顾承载吸能性能的点阵超材料构型。研究结果表明,融合机器学习技术与有限元仿真,可有效降低优化设计的计算
               成本,为复杂点阵超材料的快速性能优化与定制化设计提供技术支撑。
                  关键词: 点阵超材料;机器学习;遗传算法;多目标优化;增材制造
                  中图分类号: O347.3; TQ028.1   国标学科代码: 13015   文献标志码: A

                 Data-driven multi-objective optimization for lattice-based metamaterials


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                                 XIAO Lijun , ZHU Yanlin , SHI Gaoquan , LI Yinan , LI Runzhi ,
                                                                  2
                                                  3
                                        HUI Xulong , ZHANG Ruigang , SONG Weidong 1
                 (1. State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China;
                                    2. Jinxi Industries Group Co., Ltd, Taiyuan 030027, Shanxi, China;
                               3. National Key Laboratory of Strength and Structural Integrity, Aircraft Strength
                                       Research Institute of China, Xi’an 710065, Shaanxi, China)
               Abstract:  Strut-based lattice metamaterials are a category of ultra-lightweight, load-bearing, and energy-absorbing materials
               with broad application prospects in fields such as impact protection, aerospace engineering, and lightweight structural design.
               Benefiting  from  their  unique  periodic  architectures  and  adjustable  meso-structural  parameters,  these  materials  exhibit
               exceptional mechanical tunability and multifunctional potential. However, due to the extensive parameter space of mesoscopic
               configurations  and  the  highly  nonlinear  correlation  between  the  structural  geometry  and  the  mechanical  response,  the
               optimization  of  mechanical  performance  for  lattice  metamaterials  remains  a  formidable  challenge.  Based  on  the  meso-
               structural  characteristics  of  strut-based  lattice  metamaterials,  an  efficient  rapid  digital  modeling  method  was  proposed.  A
               Python  script  coupled  with  Abaqus  software  was  utilized  for  the  rapid  modeling  of  truss  lattice  metamaterials  and  fast
               calculations about the mechanical properties of the metamaterials. Based on the calculation results, a machine learning dataset
               was  constructed.  Three  types  of  truss  lattice  structures  were  randomly  selected  and  additively  manufactured.  Quasi-static



                 *   收稿日期: 2025-09-01;修回日期: 2025-11-24
                   基金项目: 国家自然科学基金(12372349, 12172056, 12572429, 12002049);爆炸科学与安全防护全国重点实验室自主课题
                          (YBKT25–05);强度与结构完整性全国重点实验室开放基金(LSSIKFJJ202404009)
                   第一作者: 肖李军(1991- ),男,博士,副教授,xljbit@bit.edu.cn
                   通信作者: 宋卫东(1975- ),男,博士,教授,swdgh@bit.edu.cn


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