战斗机地面停放时飞行员综合热应激预测模型

预测夏季战斗机地面停放时飞行员的热应激,以提高航卫等有关人员对飞行员受高温影响的认识,并为采取必要的防护措施提供依据.首先由气象条件估算战斗机座舱内热环境参数,分析穿着夏季飞行基础服装时飞行员在座舱热环境中的热调节过程,模拟飞行员热生理指标变化情况,从而预测飞行员的热应激水平.编制了飞行员穿夏季基础着装在座舱中的热分析软件,给出了热应激预测结果,经高温舱试验验证,人体平均皮肤温度、核心温度及平均体温增值计算与试验结果变化趋势相同,且量值接近,热应激预警结果一致.综合热应激指数模型预测与试验结果对比偏差均小于20%,预测模型合理可靠,能满足使用要求.

Estimation model of comprehensive index of heat stress on fighter pilots on ground

Comprehensive index of heat stress(CIHS) was given to pay attention to the high temperature influence on fighter pilots,and to supply proof to take necessary protection to the pilots.According to the airport weather report thermal environment parameters of fighter cabin were estimated first,heat and mass transfer process was analyzed about thermal system concluding pilot,summer flying wear and the cabin environment,and changes of human body thermal physiological parameters were simulated,then the CIHS was calculated.The heat and mass transfer analysis software of the thermal system was developed.The CIHS estimation curve under a given weather was plotted.The high temperature cabin experiments show that calculated results about average skin temperature,core temperature and average body temperature are similar to the experimental results,they have same change tendencies,similar increments between initial and final values.The heat stress early-warning results are the same.The deviations between experimental and calculated results are less than 20%,so the estimation model is reliable and reasonable,can meet the application very well.