[1]周德生,闫晓磊,黄登峰,等.基于浮动映射拓扑优化的结构应力最小化设计[J].福建理工大学学报,2024,22(04):387-392.[doi:10.3969/j.issn.2097-3853.2024.04.012]
　ZHOU Desheng,YAN Xiaolei,HUANG Dengfeng,et al.Structural stress minimization design based on floating projection topology optimization[J].Journal of Fujian University of Technology;,2024,22(04):387-392.[doi:10.3969/j.issn.2097-3853.2024.04.012]
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基于浮动映射拓扑优化的结构应力最小化设计
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《福建理工大学学报》[ISSN:2097-3853/CN:35-1351/Z]

卷:
第22卷
期数:
2024年04期
页码:
387-392
栏目:
出版日期:
2024-08-25

文章信息/Info

Title:
Structural stress minimization design based on floating projection topology optimization
作者:
周德生; 闫晓磊; 黄登峰; 花海燕; 王辉
（福建理工大学）福建省汽车电子与电驱动技术重点实验室
Author(s):
ZHOU Desheng;  YAN Xiaolei;  HUANG Dengfeng;  HUA Haiyan;  WANG Hui
Key Laboratory for Automotive Electronics and Electric Drive of Fujian Province, Fujian University of Technology
关键词:
拓扑优化; 浮动映射; 应力奇异; P范数
Keywords:
topology optimization; floating mapping; stress singularity; P-norm
分类号:
TU311
DOI:
10.3969/j.issn.2097-3853.2024.04.012
文献标志码:
A
摘要:
以全局Mises应力水平最小化为设计目标,通过引入应力凝聚函数解决应力局部化问题,基于浮动映射拓扑优化(floatingprojectiontopologyoptimization,FPTO)方法,并采用应力松弛技术克服单元应力奇异现象,实现结构全局应力最小化设计。数值算例结果显示,经过应力最小化设计,结构的峰值应力可以降低25.32%~36.49%,而柔度仅增加了2.20%~5.87%,验证了该文提出的应力设计方法的有效性。
Abstract:
Aiming at minimizing the global Mises stress level, the resolution of stress localization issues is addressed through the incorporation of a stress concentration function. Based on the floating projection topology optimization (FPTO) method, the stress relaxation technique is used to overcome the singularity of element stress, and the global stress minimization design of the structure is realized. Numerical examples demonstrate that through stress minimization design, peak stresses in the structure can be reduced by 25.32% to 36.49%, with a marginal increase in flexibility ranging from 2.20% to 5.87%. These findings validate the effectiveness of the proposed stress design method.

参考文献/References:

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更新日期/Last Update: 2024-08-25