中国机械工程 ›› 2026, Vol. 37 ›› Issue (2): 452-465.DOI: 10.3969/j.issn.1004-132X.2026.02.020

• 智能制造 • 上一篇    

基于仿生扩散生长驱动的加筋板壳抗屈曲拓扑设计

姜学涛, 杨勇(), 朱季红, 冯昊, 潘顺洋   

  1. 苏州科技大学机械工程学院, 苏州, 215009
  • 收稿日期:2025-09-09 出版日期:2026-02-25 发布日期:2026-03-13
  • 通讯作者: 杨勇
  • 作者简介:姜学涛,男,1997年生,硕士研究生。研究方向为加筋薄壳优化设计
    杨勇*(通信作者),男,1985年生,副教授。研究方向为结构优化设计。E-mail: 2528@usts.edu.cn
  • 基金资助:
    国家自然科学基金(51805346);江苏省重点实验室开放基金(JSKL2324K07);江苏省研究生科研与实践创新计划(KYCX22_3260)

Buckling Topological Design of Reinforced Plate/Shell Based on Bionic Diffusion Growth-driven Method

JIANG Xuetao, YANG Yong(), ZHU Jihong, FENG Hao, PAN Shunyang   

  1. School of Mechanical Engineering,Suzhou University of Science and Technology,Suzhou,Jiangsu,215009
  • Received:2025-09-09 Online:2026-02-25 Published:2026-03-13
  • Contact: YANG Yong

摘要:

针对现有加筋板仿生设计存在因基结构建模方式所引起的优化空间不足的问题,根据植物筋脉生长特征,提出一种扩散式生长方案来模拟植物筋脉的形成过程,寻求加筋的合理布局,使得结构具备高效的屈曲承载能力。采用一种改进的优化建模框架,使用S9R5单元以及B32/B31梁单元模拟叶片和筋脉,并使用节点预存储、保留更新的方案,通过提高生长节点更新范围的方式扩展自适应加筋的灵活性。以矩形薄板为例,通过对不同参数下简支板在四边简支(SSSS)以及双侧简支(SFSF)条件下不同受载模式的屈曲案例进行对比,验证了算法的有效性。结果表明,扩散式生长加筋方案所得到的加筋布局比现有生长方式更为有效,布局清晰。

关键词: 加筋薄壳, 扩散式生长, 结构拓扑, 线性屈曲分析, 基结构法

Abstract:

To overcome the limitations of insufficient design spaces in existing Bio-inspired reinforced-plate design(BRD) methods resulting from the modeling strategy of the ground structure method (GSM), a diffusion-based growth scheme inspired by the vein growth patterns of plants was proposed. The scheme simulated the formation processes of plant venation to identify efficient stiffener layouts that enhanced the buckling load-bearing capacity of the structure. An improved optimization modeling framework was adopted, using S9R5 Shell elements and B32/B31 beam elements to simulate the plate(leaf) and stiffeners(veins) respectively. A scheme of node pre-storage and reserve/updating employed to expand the flexibility of stiffeners by increasing the updating-range of active nodes. Rectangular thin plates were investigated as representative examples, buckling analyses under various parameters, boundary conditions(SSSS and SFSF), and loading cases were conducted to validate the effectiveness of the proposed method. The numerical results demonstrate that the diffusion-based growth scheme yields more efficient and clearer stiffener layouts compared to existing growth strategies.

Key words: reinforced shell, diffusion-driven growth, structure topology, linear buckling analysis, ground structure method

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