基于U*负载路径分析的格子结构设计
Shengjie Zhao1, Dezhuang Song2, Nan Wu1
1Department of Mechanical Engineering, University of Manitoba, Winnipeg, Canada.
3D printing and additive manufacturing
|December 20, 2023
概括
这项研究优化了格子结构,通过通过U*分析识别的负载路径对齐托架. 这种方法提高了组件的特定刚性和强度,提高了结构性能.
科学领域:
- 机械工程 机械工程
- 材料科学 材料科学 材料科学
- 计算力学 计算力学 计算力学
背景情况:
- 格子结构对于轻量级组件和能量吸收至关重要.
- 目前的拓优化方法缺乏最佳格子布局的最终解决方案.
- 与负载路径对齐的格子托架是优越结构性能的关键.
研究的目的:
- 用负载路径分析开发一种优化格子结构布局的方法.
- 根据负载路径来定制以身体为中心的立方格结构的单元细胞几何.
- 创建具有改善机械性能的功能分级格子结构.
主要方法:
- U* 负载路径分析以确定最佳格子布局.
- 从U*场引出刚度和潜在线的导出.
- 对于功能分级的属性而言,木架直径的数值优化.
- 有限元模拟和实验验证.
主要成果:
- 该U*级格子设计显示了显著更高的特定刚性和强度.
- 与均的电池排列进行比较时,U*级设计的性能更为优越.
- 通过有限元模拟和选择性激光烧结实验进行验证.
结论:
- U*负载路径分析为优化格子结构提供了一个强大的方法.
- 这种方法可以设计具有物理确定,优化负载路径的格子结构.
- 工程师可以通过整合负载路径信息来创建具有增强性能的新型格子设计.
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