Measurement and Assessment of Head-to-Helmet Contact Forces

IF 3 2区医学 Q3 ENGINEERING, BIOMEDICAL

Annals of Biomedical Engineering Pub Date : 2025-01-25 DOI:10.1007/s10439-025-03677-3

Turner Jennings, Aidan Tillman, D’mitra Mukasa, Michael Marchev, Sinan Müftü, Rouzbeh Amini

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引用次数: 0

Abstract

Purpose

To evaluate the population variation in head-to-helmet contact forces in helmet users.

Methods

Four different size Kevlar composite helmets were instrumented with contact pressure sensors and chinstrap tension meters. A total number of 89 volunteers (25 female and 64 male volunteers) participated in the study. The length, width, and circumference of their heads were measured and each volunteer was assigned a helmet size. Volunteers were asked to wear the helmet in three different configurations and the chinstrap tension and contact force between the head and each of the seven interior pads were recorded.

Results

The majority of forces measured on any individual pad were between 0 and 5 N. However, some users exhibited pressure points with forces as high as 30 N. The contact force distribution is non-uniform across the interior of the helmet, with the largest force concentrated at the front. Head shape is a major driver of the observed contact force. There was a statistically significant difference between female and male volunteers, and between groups with different experience levels.

Conclusions

The fit of helmet systems is highly subject specific. The current metrics used to assign helmet sizes may not accurately predict correct helmet fit.

查看原文本刊更多论文

头头盔接触力的测量与评估。

目的：评价头盔使用者头部与头盔接触力的人群变化。方法：在4个不同尺寸的凯夫拉复合材料头盔上安装接触式压力传感器和颏带张力计。共有89名志愿者（25名女性和64名男性志愿者）参加了这项研究。测量了他们头部的长度、宽度和周长，并给每个志愿者分配了一个头盔尺寸。志愿者被要求以三种不同的方式佩戴头盔，并记录下下巴带的张力和头部与七个内部垫之间的接触力。结果：在任何单个垫上测量的大多数力都在0到5 n之间，然而，一些用户表现出的压力点的力高达30 n。头盔内部的接触力分布不均匀，最大的力集中在前部。头部形状是观察到的接触力的主要驱动因素。在女性和男性志愿者之间，以及不同经验水平的小组之间，有统计学上的显著差异。结论：头盔系统的配合具有高度的主体特异性。目前用于分配头盔尺寸的指标可能无法准确预测正确的头盔适合度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Annals of Biomedical Engineering 工程技术-工程：生物医学

CiteScore

7.50

自引率

15.80%

发文量

212

审稿时长

3 months

期刊介绍： Annals of Biomedical Engineering is an official journal of the Biomedical Engineering Society, publishing original articles in the major fields of bioengineering and biomedical engineering. The Annals is an interdisciplinary and international journal with the aim to highlight integrated approaches to the solutions of biological and biomedical problems.