竹式3D打印管的防撞性能:灌装模式,灌装比率,墙壁厚度和内部直径的影响
1Automotive Engineering Department, Engineering Faculty, Bursa Uludağ University, Bursa 16059, Türkiye.
Biomimetics (Basel, Switzerland)
|October 28, 2025
概括
这项研究优化了3D打印的管子,以吸收冲击. 网格和蜂充填率为30%的充填率和特定墙壁厚度显示出优异的能量吸收 (EA) 和特定能量吸收 (SEA).
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:
- 3D打印结构提供可调节的机械性能.
- 以竹子为灵感的设计可以增强冲击吸收.
- 优化充填参数对于防撞性至关重要.
研究的目的:
- 为了研究3D打印的圆形管的冲击吸收性能,其填充类型,比率,壁厚和内部直径各不相同.
- 确定最佳设计参数,以最大限度地提高能量吸收 (EA) 和特定能量吸收 (SEA).
- 通过使用峰值压力 (PCF),EA和SEA来评估防撞性能.
主要方法:
- 使用了Taguchi L16直角设计来优化参数.
- 使用FDM (化沉积建模) 技术3D打印的PLA (聚乳酸) 管.
- 进行了准静态压缩试验,以评估冲击吸收.
主要成果:
- 能量吸收 (EA) 随着充填率的增加而增加,回报率下降超过30%.
- 30%填充时的特定能量吸收率 (SEA) 超过40%.
- 最佳设计 (GRID_T16F30D24,HCOMB_T08F30D22,GRID_T12F20D22) 根据与乌托邦点相对的峰值粉碎力 (PCF) 和EA确定.
- 网格和蜂充填在与之相似的墙壁厚度下以20-30%的充填率表现出色.
- 阿基米德的和弦充填由于断裂而表现不佳.
结论:
- 设计参数显著影响3D打印管的冲击吸收能力.
- 网格和蜂充填结构显示了能量吸收应用的巨大潜力.
- 进一步的研究可以探索先进的材料和动态测试,以提高防撞性.
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