| 非均匀稳态环境局部热感觉对整体热感觉的影响 |
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| 引用本文： | 丁千茹,金权,李祥立,端木琳.非均匀稳态环境局部热感觉对整体热感觉的影响[J].东南大学学报,2010,26(2):238-242. |
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| 作者姓名： | 丁千茹 金权 李祥立 端木琳 |
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| 作者单位： | 大连理工大学土木工程学院,大连,116024 |
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| 基金项目： | The National Natural Science Foundation of China（No.50678030） |
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| 摘 要： | 为了揭示人体热反应机理、分析局部热感觉对整体热感觉的影响,通过对身体7个不同部位的冷刺激,开展了对人体主观热反应的实验研究（取94个样本）,并建立了整体热感觉预测模型.为消除各部位间存在的多重共线性影响,采用主成分回归方法获得不同部位刺激工况下的主成分.然后通过多元线性回归和主成分分析,得到7个部位的权重系数.最后,基于此权重系数建立整体热感觉的预测模型.分析结果表明,躯干和肢体末端表现出不同的热反应特性,局部对整体热感觉的权重系数在物理意义上为一综合反应量,并且不同部位的权重系数相差不大.
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| 关 键 词： | 局部热感觉 整体热感觉 非均匀环境 权重系数 |
Effect of local thermal sensation on whole-body thermal sensation under stable non-uniform environment |
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| Ding Qianru Jin Quan Li Xiangli Duanmu Lin.Effect of local thermal sensation on whole-body thermal sensation under stable non-uniform environment[J].Journal of Southeast University(English Edition),2010,26(2):238-242. |
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| Authors: | Ding Qianru Jin Quan Li Xiangli Duanmu Lin |
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| Institution: | Ding Qianru Jin Quan Li Xiangli Duanmu Lin(School of Civil Engineering,Dalian University of Technology,Dalian 116024,China) |
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| Abstract: | To reveal the principles of human thermal responses and find out the effects of body parts on whole-body thermal sensation,through a subjective survey,experimental investigations on human responses are carried out when a single body part is thermally stimulated.Cooling airflow is sent to seven body parts,respectively.Totally 94 samples are tested.To eliminate the obvious multicollinearity of thermal sensation among different body parts,the principal component regression approach is adopted to obtain the principal components for the body parts under different experimental conditions.Through regression and analysis of principal components,the weighting factors of the seven body parts are obtained.A predictive model on whole-body thermal sensation is obtained based on the weighting factors.The results show that the different characteristics of trunk and limbs are clearly seen.The weighting factors of local thermal sensation are integrated values,and there is little difference among values of different body parts. |
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| Keywords: | local thermal sensation whole-body thermal sensation non-uniform environment weighting factor |
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