在飞机内载荷下,生物灵感的弧形圆形蜂巢的性能设计
Chengliang Zhu1, Yangyang Liu1,2
1School of Engineering, Anhui Agricultural University, Hefei 230036, China.
Biomimetics (Basel, Switzerland)
|January 27, 2026
概括
本研究介绍了用金属增材制造制造的弧形圆形层次蜂巢. 第二阶层层次配置显著提高了压力应力和能量吸收,为轻质结构提供了新的设计方法.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 添加剂制造 添加剂制造 添加剂制造
背景情况:
- 轻量级的蜂结构对于能量吸收应用至关重要.
- 优化层次配置是提高机械性能的关键.
- 金属增材制造使先进材料的复杂几何设计成为可能.
研究的目的:
- 为了研究新型弧形圆形等级蜂巢的机械性能.
- 为了比较不同层次配置的能量吸收能力.
- 开发一个设计框架,用于蜂结构中的多阶段高原应力.
主要方法:
- 使用金属增材制造制备弧形蜂 (AHs),第一阶段 (ACH-1) 和第二阶段 (ACH-2) 层次配置.
- 蜂标本的近静态压缩测试.
- 有限元素分析 (FEA) 用于验证和参数研究.
主要成果:
- 所有配置都表现出多级负载响应.
- ACH-2配置显示了显著更高的压力应力和特定能量吸收 (SEA),与AH相比增强了210%.
- 参数分析显示,墙壁厚度影响机械性能,而细胞数量的增加对恒定相对密度的能量吸收的影响有限.
结论:
- 弧形圆形的等级蜂巢,特别是ACH-2,具有优越的能量吸收潜力.
- 建立了一个经过验证的反向设计框架,用于ACH-2结构中的多阶段平原应力.
- 这项研究为设计先进的蜂结构以减轻冲击提供了一种可行的方法.
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