Research of Human Adaptability for Thermal Environment by Using Thermoregulation Model Expressing Local Characteristics of Each Segment

我们开发了一个计算机程序，用于对人体各部分和血液循环系统的热状况进行数值分析，以精确评估人体的热、生理和心理反应。在本方案中，人体分段采用由内部多层组成的圆柱形模型。对于多层同心圆柱模型，我们采用了一种新的数值求解方法。利用该程序可以同时计算人体各节段的内部组织温度、热流密度和血液温度。该程序还包括一个用于计算体温调节响应的子程序。此外，该程序还安装了用神经网络技术预测热心理反应的子程序。本文介绍了该程序在模拟个体生理差异方面所作的改进及其在不同工作水平上的应用。改进的重点是个体的身体特征和局部肌肉产热的分配程序。用改进后的计算机程序模拟了受试者在不同热环境条件下进行各种运动时的全身温度。计算结果与实测值吻合较好。结果表明，对体温预报计算机程序的改进是有效的。

We introduced a computer program developed for numerical analysis of thermal conditions of all segments and blood circulatory systems in the human body to precisely evaluate human thermal physiological and psychological responses. In this program, a cylindrical model consisting of internal multi-layers is adapted for the segment of the human body. For the multi-layered concentric cylindrical model, we adopted a new numerical solution method. By using this computer program, the internal tissue temperatures, heat fluxes and blood temperatures of all segments in the human body could be calculated simultaneously. This program also included a subroutine for calculation of thermoregulatory response. In addition the program was installed a subroutine for prediction of thermal psychological responses with neural network technique.This report describes the improvements made to this computer program for simulating individual physical differences and its application to various working levels. The main points for improvement were the assigning procedures of physical characteristics of individuals and local muscle heat production. The improved computer program was used to simulate the whole body temperatures of subjects during various kinds of exercise under various thermal environmental conditions. The calculated results were well agreed with the measured results. It was indicated that improvement of a prediction computer program of whole body temperature was effective.