使用数字技术和冲击测试来设计具有优质保护的定制口罩
Naser Nasrollahzadeh1,2, Dominique P Pioletti2, Martin Broome3
1Division of Oral & Maxillofacial surgery, Lausanne University Hospital (CHUV) and Lausanne University, Rue du Bugnon 44, Lausanne, 1011, Switzerland.
Sports medicine - open
|May 30, 2024
概括
通过有限元分析和3D打印优化定制口罩设计,可显著提高牙保护. 新型配置,包括硬插件和空间包含,与传统口罩相比,将撞击应变减少约50%.
科学领域:
- 生物材料科学 生物材料科学
- 运动工程 运动工程
- 生物力学 生物力学
背景情况:
- 接触式运动带来了和牙骨系统损伤的风险.
- 口罩通过改变创伤动态来减轻受伤风险,但设计性能关系尚不清楚.
- 定制口罩是标准的,正在进行改进设计的研究.
研究的目的:
- 开发一个有限元模型来分析定制口罩设计变量.
- 为了评估材料刚度,厚度和空间包含在口罩保护上的影响.
- 通过实验性撞击测试验证模拟结果.
主要方法:
- 有限元模型模拟冲击场景.
- 材料特性 (硬度,厚度) 和结构特征 (空间包含) 的评估.
- 使用商业树脂3D打印定制口罩,并进行实验性冲击测试以验证.
主要成果:
- 一个更硬的正面区域与空间包含最好地分配负载和吸收冲击能量.
- 更软的层增加了冲击时间和通过压缩吸收能量.
- 与传统设计相比,3D打印的口罩表现出优越的保护性,减少了约50%的切肢应变.
结论:
- 优化结构和材料特性最大限度地提高了口罩的保护性能.
- 结合模拟,增材制造和测试的工作流加速了功能性口罩的开发.
- 未来的定制口罩将是3D打印的,具有针对运动和冲击严重性的特定区域属性.
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