我们能像玩偶一样重新定位有限元人体模型吗?
Jisi Tang1, Qing Zhou1, Wenxuan Shen1
1State Key Laboratory of Automotive Safety and Energy, School of Vehicle and Mobility, Tsinghua University, Beijing, China.
Frontiers in bioengineering and biotechnology
|June 2, 2023
概括
重定位高保真有限元人体模型 (FE-HBMs) 现在使用一种新的模拟姿势参数方法更快,更有效. 这种技术增强了车辆安全模拟和伤害生物力学研究.
科学领域:
- 生物力学 生物力学
- 计算建模计算建模
- 车辆安全 车辆安全
背景情况:
- 具有高生物真实性的有限元人体模型 (FE-HBM) 的重新定位对于车辆安全和伤害生物力学至关重要.
- 目前用于重新定位FE-HBM的现有方法往往耗时且复杂.
研究的目的:
- 开发一种直观,有效和高效的方法来快速重新定位FE-HBMs.
- 为了适应FE-HBM对姿势敏感的应用,如出位乘客安全和自适应行人保护.
主要方法:
- 提出了一种新的方法,使用姿势参数来规定的关节配置,以模拟人形的重新定位.
- 利用差异几何学来重新定位骨表面,以及用于软组织适应的形态接触算法.
- 采用薄板线来转化软组织,并优化以增强网状规律性.
主要成果:
- 拟议的工具箱可以在几分钟内重新定位全人体安全模型 (THUMS).
- 重定位的模型已经准备好模拟,并保持了网格质量.
- 通过用重新定位的模型进行汽车与行人撞击模拟来证明有效性.
结论:
- 该方法提供了一个直观,有效和高效的方法来重新定位FE-HBMs.
- 姿势参数弥合了FE-HBM和人体感知/重建技术之间的差距.
- 允许未来开发高保真数字双胞胎用于事故重建和生物力学调查.
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