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结合架和连续拓结构的优化结构的优化
Hongjia Lu1, Helen E Fairclough2, Linwei He2
1Future City (Intelligent Industrial Construction) Laboratory, Innovation Center of Yangtze River Delta, Zhejiang University, Jiaxing, 314100 China.
概括
本研究介绍了一种混合优化方法,该方法结合了结构布局和连续拓优化. 这种方法有效地设计了用于各种工程应用的结构,包括精细的架元素和散装连续区域.
科学领域:
- 结构优化 结构优化
- 机械工程 机械工程 机械工程
- 计算设计 计算设计
背景情况:
- 结构布局优化在低体积分数问题中表现出色.
- 连续拓优化适用于中高体积分数问题.
- 现实世界的设计往往需要低和高体积分数区域的混合.
研究的目的:
- 为具有混合体积分的结构开发混合优化方法.
- 整合结构布局和连续拓优化方法.
- 在复杂的设计场景中解决个别优化技术的局限性.
主要方法:
- 建议采用两步混合优化策略.
- 在设计领域内识别不同的低和高体积分数区域.
- 填充特定区域的结构和连续元件,分别通过接口连接.
- 使用可通过内部点解决器解决的圆优化公式.
主要成果:
- 混合方法成功地识别了具有混合长度尺度的结构.
- 已证明能够结合大量连续区域和精细的结构元素.
- 数字示例验证了拟议方法的有效性.
结论:
- 混合优化方法有效地解决了混合体积分的设计.
- 这种方法为整合不同结构优化技术提供了一个统一的框架.
- 这种方法可以有效地创建复杂的,多层次的结构.
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