Research and verification of oxygen consumption forecast model for extravehicular activity
Tian Changsheng
Zhang Wanxin
Fu Zongbao
Yao Likun
Liao Qianfang
Luo Shiyao
Tian Qi
Abstract：Aiming at the problem that the amount of Oxygen remaining and available time can not be accurately predicted while an astronaut conducting extravehicular activities(EVAs)in EVA spacesuit.Research the oxygen consumption process of EVA spacesuit.The model and algorithm of oxygen consumption are established by the gas state equation including compressibility and temperature coefficient,combined with human metabolism and micro leakage characteristics of spacesuit.Experimental data show that the orecast model and algorithm hasing high accuracy and practicability.
Keywords：extravehicularextravehicular activities spacesuitoxygen consumptioncompressibility coefficienttemperature coefficientforecast modelalgorithm
Publication Date：2025-04-25
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 178-182 )