Comparative analysis of the effect of two types of helmets on the neck of pilots under rapid braking condition
10.16289/j.cnki.1002-0837.2025.03009
- VernacularTitle:两型头盔对快速制动工况下飞行员颈部影响的对比分析
- Author:
Xiaoxia YUAN
1
;
Kehua LI
;
Qiuhong LIU
Author Information
1. 海军军医大学海军特色医学中心,上海 200433
- Keywords:
helmet;
pilot;
neck;
impact
- From:Space Medicine & Medical Engineering
2025;36(3):241-245
- CountryChina
- Language:Chinese
-
Abstract:
Objective To compare and analyze the biological effects of two types of helmets,which have different masses and centroids,on the neck of pilots under rapid braking condition,and provide new ideas for improving the ergonomic design of helmets for pilots.Methods A finite element model of the head,neck,helmet,and restraint system was established using Hyper Mesh 14.0 software.Finite element simulation was used to study the neck biological effects of pilots wearing different helmets for rapid braking.Results After wearing Type Ⅰ and Type Ⅱ helmets,the trend,occurrence time,and location of the maximum stress borne by each vertebra and intervertebral disc are basically consistent.The maximum stress on the vertebrae above C3 is smaller when wearing a Type Ⅰ helmet,while the maximum stress on the vertebrae below C3 is smaller when wearing a Type Ⅱ helmet.The maximum stress on the C2～C3 intervertebral disc is relatively small when wearing a TypeⅠhelmet,while the intervertebral discs below it are relatively small when wearing a Type Ⅱ helmet.The ligament elongation rate and maximum neck injury index Nij of wearing Type Ⅰ helmets are both relatively high.Conclusion Type Ⅰ helmet has a significant biological impact on the neck of pilots during rapid braking.
