个性化头部生物力学模型的开发及验证
Personalized biomechanical modeling of the human head and validation
李海岩 1曹祎帆 1贺丽娟 1吕文乐 1崔世海 1阮世捷1
作者信息
- 1. 天津科技大学机械工程学院,天津 300222;现代汽车安全技术国际联合研究中心,天津 300222
- 折叠
摘要
本文提出了一种个性化头部生物力学模型建模方法,并对所生成模型进行了有效性验证.该方法以图斯特50th百分位头部生物力学模型为基础,基于目标模型头部CT数据,采用三维点云配准和自由网格变形法,实现具有详实脑组织结构的个性化头部生物力学模型的快速建模.通过重构经典尸体试验,发现该方法构建的个性化头部生物力学模型在运动学和生物力学响应方面与尸体试验结果高度一致,且与通过逆向工程方法开发的头部生物力学模型并无明显差异,验证了本文方法所开发模型的有效性.因此,本文方法可用于快速构建具有详细解剖学结构的个性化头部生物力学模型,为损伤生物力学、临床医学和法医鉴定等领域的数字化需求提供基础计算分析工具.
Abstract
The study presents a method for the personalized biomechanical modeling of the human head and validates the generated model.Based on the TUST 50th percentile head biomechanical model,the method utilizes head CT data of the target model,and employs three-dimensional point cloud registration and free-form deformation techniques to rapidly develop a personalized head finite element model with detailed brain tissue structures.By reconstructing classic cadaver tests,it is found that the personalized head biomechanical model created by the proposed method shows a good consistency with the results of cadaver tests in kinematic and biomechanical responses.Furthermore,no significant differences are observed when compared with the head biomechanical model developed using reverse engineering method,thus verifying the effectiveness of the developed model.Consequently,the proposed method can be used to quickly construct personalized head biomechanical models with detailed anatomical structures,providing a fundamental computational analysis tool for researches in injury biomechanics,clinical medicine,and forensic identification.
关键词
头部生物力学模型/个性化建模/自由网格变形/有限元法Key words
head biomechanical model/personalized modeling/free-form deformation/finite element method引用本文复制引用
基金项目
国家重点研发计划(2018YFC0807203-1)
国家自然科学基金(81471274)
国家自然科学基金(81371360)
出版年
2024
NETL
NSTL
万方数据