摘要
本研究提出一种面向抗压结构优化的场驱动拓扑设计方法。基于ABAQUS建立3×3×3mm^(3)立方体基准模型,通过对比面心立方、开口杆状、柱状、中心球及TPMS(P型)等五种晶格结构的压缩应力场特征,验证TPMS结构的应力分布优势。创新性地将实心立方体应力场数据导入nTopology平台,生成梯度化TPMS优化构型。通过准静态压缩仿真复现万能试验机工况,系统分析优化结构的应力集中特征与应变响应曲线。结果显示:梯度TPMS相较传统均质晶格最大应力降幅达8.6%,验证了场驱动方法在抗压结构优化中的有效性。本研究为承压部件轻量化设计提供了新的数字化解决方案。
This study proposes a field-driven topology design method for compressive structure optimization.Based on ABAQUS,a 3×3×3 mm^(3) cube benchmark model is established.By comparing the com-pressive stress field characteristics of five lattice structures,such as face-centered cubic,open rod,columnar,central sphere,and TPMS(P-type),the stress distribution advantages of the TPMS struc-ture are verified.The solid cube stress field data is innovatively imported into the nTopology plat-form to generate a gradient TPMS-optimized configuration.The working conditions of the universal testing machine are reproduced by quasi-static compression simulation,and the stress concentra-tion characteristics and strain response curves of the optimized structure are systematically ana-lyzed.The results show that the maximum stress drop of the gradient TPMS compared with the tra-ditional homogeneous lattice is 8.6%,which verifies the effectiveness of the field-driven method in the optimization of the compressive structure.This study provides a new digital solution for the lightweight design of pressure components.
作者
王艳
Yan Wang(School of Mechanical Engineering,University of Shanghai for Science and Technology,Shanghai)
出处
《建模与仿真》
2025年第5期315-324,共10页
Modeling and Simulation
关键词
结构优化
三周期极小曲面(TPMS)
有限元仿真
场驱动设计
Structural Optimization
Triply Periodic Minimal Surface(TPMS)
Finite Element Simulation
Field-Driven Design
