中国安全科学学报 ›› 2026, Vol. 36 ›› Issue (7): 268-276.doi: 10.16265/j.cnki.issn1003-3033.2026.07.1090

• 职业健康 • 上一篇    下一篇

消防员上下楼梯步态周期内不同部位衣下空气层变化特征

谢岩磊(), 杨杰**()   

  1. 西安科技大学 安全科学与工程学院, 陕西 西安 710054
  • 收稿日期:2026-02-05 修回日期:2026-04-12 出版日期:2026-08-10
  • 通信作者:
    **杨杰(1987—),男,山西大同人,博士,教授,主要从事个体防护研究。E-mail:
  • 作者简介:

    谢岩磊 (2001—),男,山东聊城人,硕士研究生,主要研究方向为个体防护。E-mail:

  • 基金资助:
    国家自然科学基金面上项目资助(52474248)

Variation characteristics of air gaps under different clothing parts during firefighters' stair ascent and descent gait cycle

Xie Yanlei(), Yang Jie**()   

  1. College of Safety Science and Engineering, Xi'an University of Science and Technology, Xi'an Shaanxi 710054, China
  • Received:2026-02-05 Revised:2026-04-12 Published:2026-08-10

摘要:

为提高个体防护装备工效性能,增强救援作业灵活性,依托可控环境人体工效试验平台开展试验,选取标准消防防护服与被试人员,划分上下楼梯步态周期为4类特征步相;采用三维扫描设备采集裸体、着装2种工况人体模型数据,借助Geomagic软件完成模型降噪优化,采用体积法与接触面积比率(CA)计算公式量化测算躯干、臀部、下肢多部位衣下空气层厚度及CA指标。结果表明:在整个步态周期中,躯干部位的空气层比下肢的空气层大,胸部、背部、腹部空气层厚度在35~40 mm之间,腿部和臀部的空气层厚度在25~30 mm之间;上楼弯曲腿空气层较直立腿的空气层厚度减少2 mm,下楼屈曲腿空气层因被动屈曲幅度小而变化较小,臀部空气层随髋部姿态转换波动;右腿、左腿及臀部的CA呈现出与肢体运动姿态紧密关联的动态变化特征,其中臀部呈现出较大的CA。

关键词: 消防员, 上下楼梯, 步态周期, 衣下空气层, 接触面积比率(CA)

Abstract:

To improve the ergonomic performance of firefighting personal protective equipment and enhance flexibility in rescue operations, human ergonomic tests were carried out on a controllable environmental test platform to quantify the air gap distribution under fire protective clothing during firefighters' stair ascent and descent. Test subjects completed stair ascent and descent movements, and each complete gait cycle was divided into four characteristic gait phases. Subsequently, 3D human body models of both nude and clothed states were obtained using 3D body scanning technology. Then, Geomagic software was used to denoise and optimize the scanned models. The air gap thickness and CA ratio of different body segments was calculated using the volumetric method and CA ratio formula. The results indicate that the air gap of the trunk is thicker than that of the lower limbs throughout the gait cycle. The air gap thickness of the chest, back, and abdomen ranges from 35 to 40 mm, while that of the legs and buttocks ranges from 25 to 30 mm. During stair ascent, the air gap thickness of bent legs is 2 mm thinner than that of straight legs. During stair descent, the air gap of flexed legs changes slightly due to the small amplitude of passive bending. The air gap of the buttocks fluctuates with the change of hip posture. The CA of the right leg, left leg, and buttocks shows dynamic changes closely associated with limb movement postures, with the buttocks exhibiting a higher CA values.

Key words: firefighters, stair ascent and descent, gait cycle, air gap, air gap, contact area (CA)

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