Research on nitrogen-enrich air optimal distribution mode based on entropy-weight improvement TOPSIS method

被引：0
|
作者：
Shao L. [1 ]
Peng Y. [1 ]
Zhang C. [2 ]
Lu X. [2 ]
Yang W. [1 ]
Huang X. [3 ]
机构：
[1] School of Aeronautics, Chongqing Jiaotong University, Chongqing
[2] Hefei Jianghang Aircraft Equipment Company, Limited, Aviation Industry Corporation of China, Hefei
[3] Liangjiang International College, Chongqing University of Technology, Chongqing
来源：
Hangkong Dongli Xuebao/Journal of Aerospace Power | 2024年 / 39卷 / 03期
关键词：
fuel tank inerting; multi-compartment; multi-index comprehensive evaluation theory; nitrogen-enrich air; TOPSIS;
D O I：
10.13224/j.cnki.jasp.20210486
中图分类号：
学科分类号：
摘要：
The nitrogen-rich air distribution method was studied by using statistical theory, the Entropy-weight improvement technique for order preference by similarity to an ideal solution (TOPSIS) method was applied to establish a comprehensive evaluation method of oxygen concentration decrease rate and uniformity. On this basis, five typical inerting schemes were designed for the wing multi-compartment fuel tank of a transport aircraft. Through numerical simulation method, the above schemes were modeled and calculated, the characteristic indexes of multi-compartment fuel tank were obtained, and the established comprehensive evaluation method was used to evaluate each scheme. The results showed that: (1) the entropy-weight improvement TOPSIS method can effectively evaluate the fuel tank inerting performance and realize the determination of the optimal nitrogen-rich air distribution mode; (2) the semi-uniform inlet distribution mode of nitrogen-rich air was the best when considering the characteristics of oxygen concentration decrease rate and uniformity; (3) when the oxygen concentration decrease rate was taken as the only evaluation index, the non-uniform inlet distribution mode of nitrogen-rich air was the best; when the oxygen concentration uniformity was the only evaluation index, the semi-uniform inlet distribution mode of nitrogen-rich air intake was the best. © 2024 Beijing University of Aeronautics and Astronautics (BUAA). All rights reserved.
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