Grey relational analysis of fuzzy comprehesive evaluation of air quality in manned spacecraft
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摘要: 中长期载人航天器舱室为密闭环境,空气污染严重,极大影响了航天员的健康,有必要对该问题进行全面研究,提出新的空气质量评价方法评价舱室内的空气质量.在首次确定舱室单微量污染成分的分级模糊隶属度函数的基础上,提出采用模糊综合评价的灰关联分析方法评价中长期载人航天器舱室空气质量.该评价方法结合了模糊评价和灰色评价的优点,同时给出模糊分级结论和关联度分析结果,能反映舱室内空气质量状况及其变化规律.分析表明:评价结果信息含量大,能较好地反映载人航天器舱室内实际的空气质量状况,也能用于评价净化装置的工作性能.Abstract: The habitation module in manned spacecraft is a closed-chamber, and its air quality is increasingly attached importance along with longer time missions because it greatly influences the health of crew. It is necessary to put forward a new evaluation method of air quality. Based on the grading fuzzy membership functions of the trace contaminant being bought forward, a grey relational analysis of fuzzy comprehesive evaluation was adopted to assess the air quality in manned spacecraft. In addition, the membership functions of fuzzy grade of some important trace contaminants were firstly proposed. This assessment method merges the merits of the fuzzy evaluation and the grey one. It less depends on distributing rule and can analyze the trend of development. It can present fuzzy comprehensive evaluation matrix and grey relational grade at the same time, therefore reflect well air quality status and trend in development. The analysis shows it can more reasonably reflect actual air quality in manned spacecraft, and be used to assess the working performance of the trace contaminant control system.
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