出汗假人系统特征方程与稳定性判定

纺织学报 ›› 2006, Vol. 27 ›› Issue (10): 67-69.

出汗假人系统特征方程与稳定性判定

谌玉红^1.2;李若新¹;姜志华²;郝俊勤³

1军事医学科学院卫生装备研究所天津300160;2.总后勤部军需装备研究所;北京100088;3.解放军医学图书馆;北京100850

收稿日期:2005-03-24 修回日期:2006-05-29 出版日期:2006-10-15 发布日期:2006-10-15

Characteristic equation and stability determination of sweating manikin

SHEN Yu-hong;LI Ruo-xin;JIANG Zhi-hua;HAO Jun-qin

1.The Institute of Medical Equipment;Academy of Military Medical Sciences;Tianjin 300160;China;2.The Quartermaster Research Institute of the General Logistics Department of the PLA;Beijing 100088;China;3.Military Medical Library;Beijing 100850;China

Received:2005-03-24 Revised:2006-05-29 Online:2006-10-15 Published:2006-10-15

摘要/Abstract

摘要： 采用实验方法,通过出汗假人皮肤表面温度和湿润度的单位阶跃响应,求得系统的结构参数阻尼比ξ和自然振荡频率ωn,判定该出汗假人系统的稳定性。实验结果表明:假人皮肤表面温度控制过程的阻尼比ξ为0.804,说明皮肤表面温度控制系统为欠阻尼二阶系统,振荡过程为衰减振荡,且自然振荡频率ωn为0.004 6,温度控制过程平稳性较好;假人出汗控制过程的阻尼比ξ为0.643,说明出汗控制系统也为欠阻尼二阶系统,振荡过程为衰减振荡,自然振荡频率ωn为0.002 8,出汗控制过程平稳性也很好。

Abstract: The two parameters(damping ratio ξ and nature surge frequency ω_n) of the system are obtained through the step response curve of sweating manikin.According to the values of ξ and ω_n,the stability of sweating manikin system can be determined.The experimental results show that in the control process of manikin surface skin temperature,when ξ is 0.804,it illustrates that this control system is an underdamping second-order system.The surge process is attenuation.When the nature surge frequency ω_n equals to(0.004 6),the stability of this control process is very good.In the control process of manikin surface wetness,when ξ is 0.643,it illustrates that this control system is also an underdamping second-order system.The surge process is attenuation,too.When the nature surge frequency ω_n equals to(0.002 8),the stability of this control process is also very good.

谌玉红.;李若新;姜志华;郝俊勤. 出汗假人系统特征方程与稳定性判定[J]. 纺织学报, 2006, 27(10): 67-69.

SHEN Yu-hong;LI Ruo-xin;JIANG Zhi-hua;HAO Jun-qin. Characteristic equation and stability determination of sweating manikin[J]. JOURNAL OF TEXTILE RESEARCH, 2006, 27(10): 67-69.

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