使用有限元分析,数值模拟和实验性压力测量对呼吸道面罩的装配进行评估
Hugo Taeckens1, Arthur Agostini1, Bahe Hachem2
1Department of software and IT engineering, École de technologie supérieure, Montreal, Canada.
Annals of biomedical engineering
|October 27, 2025
概括
使用面部扫描和有限元素分析设计的个性化3D呼吸口罩提高了舒适性和密封性. 这种方法通过模拟压力和间隙来增强适合性,从而为用户提供更好的口罩定制.
科学领域:
- 生物医学工程 生物医学工程
- 计算力学 计算力学 计算力学
- 人类因素工程 人类因素工程
背景情况:
- 像N95这样的通用呼吸道口罩可能会因为不适合和过度拉紧而引起不适.
- 个性化口罩设计对于提高用户舒适度和确保有效的呼吸道保护至关重要.
研究的目的:
- 使用3D面部扫描来个性化呼吸口罩的设计.
- 用有限元素分析 (FEA) 模拟面具的装配并预测舒适度.
- 评估FEA模拟与实验测量的准确性.
主要方法:
- 用ARKit和3D红外摄像头招募了10名参与者进行面部扫描.
- 根据个人面部几何形状创建了个性化的3D呼吸口罩.
- 使用Ansys Mechanical进行数值模拟 (FEA) 来计算压力和密封.
- 在不同的紧固级别下进行实验性压力测量以验证.
- 收集了用户对口罩舒适性和适合性的反.
主要成果:
- 调整了FEA模拟结果,使用了全局校正因数.
- 经过校正后,86%的模拟结果与实验压力测量密切匹配 (差距在1N以内).
- 压力和差距地图有效地可视化了面罩-面部相互作用和密封能力.
结论:
- 3D面部扫描和FEA使个性化呼吸口罩设计成为可能.
- 这种方法可以显著提高口罩的舒适性,并确保适当的密封.
- 定制面具为改善呼吸道保护和用户体验提供了一个有希望的解决方案.
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