薄壁双线管的生物设计具有出色的防撞性,灵感来自玻璃海绵结构
Yansong Liu1, Meng Zou1, Yingchun Qi1
1Key Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun 130022, People's Republic of China.
Bioinspiration & biomimetics
|June 13, 2024
概括
这项研究引入了生物玻璃海绵管 (BGSTO) 以提高能量吸收. 与传统设计相比,BGSTO表现出优越的防撞性和更高的强度与重量比.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 生物模拟学是一种生物模拟学.
背景情况:
- 深海玻璃海绵表现出强大的对角线双线方格格子结构.
- 薄壁结构需要增强的能量吸收和高强度与重量比,用于如防撞等应用.
研究的目的:
- 设计和评估一个生物玻璃海绵管 (BGSTO),以自然结构为灵感,以获得卓越的能量吸收.
- 为了比较BGSTO与传统管道的防撞性,并分析可调距离的影响.
- 使用多目标优化优化 BGSTO 设计.
主要方法:
- 基于实验和模拟的BSGTO与四个X管的比较.
- 设计和分析两个额外的生物结构 (BGSTA,BGSTB) 具有可变的双线间距.
- 应用改进的复杂比例评估 (COPRAS) 方法进行比较分析.
- 开发一个替代模型,用于多目标优化.
主要成果:
- 与四个X管相比,BGSTO实现了78.64%的特定能量吸收增加.
- 在具有相似细胞数量的多细胞管中,BGSTO表现出优越的防撞性.
- 在BGSTO中可调节的双线间距没有改变材料使用.
- 与BGSTA和BGSTB相比,BGSTO在轴向和侧向负载的情况下都表现出了优越的防撞性.
结论:
- 生物玻璃海绵管 (BGSTO) 在能量吸收和防撞性能方面提供了显著的改进.
- 设计灵活性,特别是可调节的间距,可以在不影响材料效率的情况下提供量身定制的性能.
- BGSTO代表了一种有前途的仿生方法,用于开发先进的薄壁吸收能量的结构.
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