摘要
为研究人体在高温高湿环境下的热生理响应,基于人体温度调节机制,对Gagge两节点模型中的被动系统、主动系统以及服装系统进行改进,建立了改进的人体热生理模型,然后通过人体热生理实验验证了改进的热生理模型在预测皮肤温度、核心温度及出汗量等方面的精确性,最后利用已验证的模型预测煤矿工人的核心温度及安全作业时间。结果表明:在3个不同实验工况的案例下,核心温度模拟值与实验值的最大误差均不超过0.5℃,皮肤温度模拟值与实验值的最大误差均不超过1.4℃,由此可见改进的人体热生理模型能较为可靠的预测人体在高温高湿环境下的皮肤温度和核心温度;通过预测煤矿工人的合理工作时长发现,从事重劳动作业的矿工安全作业时间最短,基本需每工作40 min左右就要进行一次短暂休息,从事中劳动的工人安全作业时间在2 h左右,从事轻劳动的工人受环境影响较小。
In order to study the thermal physiological response of human body in high temperature and humidity environment,the passive system,active system and clothing system of Gagge two node model were improved,based on the human body temperature regulation mechanism with the improved human thermal physiological model established.Then,the accuracy of the improved thermal physiological model in predicting skin temperature,core temperature and sweating amount was verified by human thermal physiological experiments.In addition,the core temperature and safe working time of coal miners were predicted by this model.The results show that:in three different cases,the maximum error between the simulated value of core temperature and the experimental value is not more than 0.5℃,and the maximum error of skin temperature simulation value and experimental value not more than 1.4℃.It can be seen that the improved human thermal physiological model can reliably predict the skin temperature and core temperature of human body in high temperature environment.By predicting the effective working hours of coal miners,it is found that the miners engaged in heavy labor work have the shortest effective working time,who need to have a short rest every 40 minutes.The effective working time of workers engaged in medium labor is about 2 hours,and the workers engaged in light labor are less affected by the environment.
作者
安启启
徐刚
杨杰
王兴明
朱辉
AN Qiqi;XU Gang;YANG Jie;WANG Xingming;ZHU Hui(College of Safety Science and Engineering,Xi’an University of Science and Technology,Xi’an 710054,China;Key Laboratory of Western Mine Exploitation and Hazard Prevention,Ministry of Education,Xi’an University of Science and Technology,Xi’an 710054,China)
出处
《西安科技大学学报》
CAS
北大核心
2021年第2期253-261,共9页
Journal of Xi’an University of Science and Technology
基金
国家自然科学基金资助项目(51904228)
陕西省自然科学基础研究计划(2019JM-072)
西安科技大学博士后启动金(2018QDJ053)。
关键词
热生理
数值模拟
皮肤温度
核心温度
高温高湿
thermophysiology
numerical simulation
skin temperature
core temperature
high temperature and humidity
