Investigation of Ankle Joint Responses with Emergency Braking During Frontal Impact

正面撞擊過程中緊急制動時踝關節響應的調查

尤思琪(Si-Qi You) ； 肖森(Sen Xiao) ； 陳武(Wu Chen) ； 田騰飛(Teng-Fei Tian) ； 趙興利(Xing-Li Zhao) ； 張浩(Hao Zhang)

《中國機械工程學刊》 43卷5期 (2022/10) Pp. 441-451

摘要

This study aims to provide a reference to the study of lower extremity injury prevention during a frontal impact. First, the boundary conditions of a car model are established. Then, through intrusions and accelerations characters of inner parts to simulate the whole process of a full-scale car accident, the ankle joint injury is determined by the injury index like ligaments kinetics around the joints under emergency braking. Results demonstrate that in the model without active muscle function, the bending angle of the right ankle is increased by 11% compared with that of the left ankle. In the model with active muscle function, the bending angle of the right ankle is increased by 16% compared with that of the left ankle. This study investigates differences in ankle kinetic characteristics due to the functionality of lower extremity active muscle under 40% offset frontal impact.

關鍵字

active muscle ； ankle joint injury ； ligament injury ； moderate overlap impact

並列摘要

本研究旨在為正面撞擊時下肢損傷預防的研究提供參考。首先，建立汽車模型的邊界條件。然後，通過內部部件的侵入和加速特性，模擬了一次實車事故的全過程，通過緊急制動下關節周圍韌帶動力學等損傷指標確定了踝關節損傷。結果表明，在沒有主動肌肉功能的模型中，右腳踝的彎曲角度比左腳踝增加了11％。在肌肉功能活躍的模型中，右腳踝的彎曲角度比左腳踝增加了16％。本研究調查了在40％偏置正面衝擊下由於下肢活動肌肉功能導致的踝關節動力學特征的差異。