低温环境中手部皮肤温度的数值模拟

doi:10.16265/j.cnki.issn 1003-3033.2020.11.027

中国安全科学学报 ›› 2020, Vol. 30 ›› Issue (11): 182-187.doi: 10.16265/j.cnki.issn 1003-3033.2020.11.027

低温环境中手部皮肤温度的数值模拟

贺艳¹ 副教授, 杨杰^**2 副教授

1 西安科技大学地质与环境学院,陕西西安 710054;
2 西安科技大学安全科学与工程学院,陕西西安710054

收稿日期:2020-08-13 修回日期:2020-10-13 出版日期:2020-11-28 发布日期:2021-07-15
通讯作者: **杨杰(1987—),男,山西大同人,博士,副教授,主要从事公共安全与人体热防护等方面的研究。E-mail:jyang@xust.edu.cn。
作者简介:贺艳 (1988—),女,山西临汾人,博士,副教授,主要从事环境安全等方面的研究。E-mail: nkheyan@163.com。
基金资助:
国家自然科学基金资助(51904228);西安科技大学博士启动基金资助(2050118027,6310118039,6310219021)。

Numerical simulation of skin temperature of hands in low-temperature environment

HE Yan¹, YANG Jie²

1 College of Geology and Environment, Xi'an University of Science and Technology, Xi'an Shannxi 710054, China;
2 College of Safety Science and Engineering, Xi'an University of Science and Technology, Xi'an Shannxi 710054, China

Received:2020-08-13 Revised:2020-10-13 Online:2020-11-28 Published:2021-07-15

摘要/Abstract

摘要： 为评估手的冷应激和冻伤,开发高性能手套和提升应急救援效率,根据分块、分层的建模思想,将手划分为大拇指、食指、中指、无名指、小拇指、手掌、手背7个部位,并将每个部位细分为皮肤层、脂肪层、肌肉层、核心层。在此基础上,建立手部热反应模型,模拟手不同部位的皮肤温度;为验证所建立手部热反应模型的精确性,对比模型模拟值与文献中试验值。结果表明:模型模拟手掌和手背皮肤温度时精度较高,和试验值相比最大偏差分别为3.6 ℃和2.4 ℃,模拟值和试验值趋势吻合较好;中指和无名指皮肤温度下降幅度最大,大拇指次之,食指和小拇指皮肤温度下降幅度最小。

关键词: 低温环境, 手部皮肤温度, 冻伤, 手套, 热反应模型

Abstract: In order to evaluate cold stress and injuries of hands, develop high-performance gloves, and improve work efficiency of first responders, from perspective of multi-segment and multi-layer modeling, hand was divided into 7 segments including thumb, index finger, middle finger, ring finger, little finger, palm and dorsum, and each segment included four layers which were skin, fat, muscle, and core layer. Then, a hand thermal response model was proposed to simulate skin temperature. Finally, simulations were compared with measurements in literature so as to validate prediction accuracy of the model. The results indicate it shows great accuracy in palm and dorsal skin temperature, and simulations are comparatively consistent with measurements with a maximum discrepancy of 3.6 ℃ and 2.4 ℃, respectively. Moreover, decrease rate in skin temperature of middle finger and ring finger are the highest, followed by thumb while index finger and little finger are the lowest.

Key words: low-temperature environment, hand skin temperature, cold injury, glove, thermal response model

中图分类号:

X968

贺艳, 杨杰. 低温环境中手部皮肤温度的数值模拟[J]. 中国安全科学学报, 2020, 30(11): 182-187.

HE Yan, YANG Jie. Numerical simulation of skin temperature of hands in low-temperature environment[J]. China Safety Science Journal, 2020, 30(11): 182-187.

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低温环境中手部皮肤温度的数值模拟

Numerical simulation of skin temperature of hands in low-temperature environment

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