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基于熵权改进TOPSIS理论的富氮气体最优分配方式研究

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通过将统计学理论应用于富氮气体分配方式理论研究中,并基于熵权改进的优劣解距离(tech-nique for order preference by similarity to an ideal solution,TOPSIS)法理论建立氧气体积分数下降速度特性和均匀特性综合评价方法.在此基础上,以某型运输机机翼多隔舱油箱为例,设计了 5种典型惰化方案,通过数值仿真方法对以上方案进行建模和计算,获取了多隔舱油箱惰化的各项特性指标,并运用建立的综合评价方法对各方案进行了评价.研究结果表明:①基于熵权改进的TOPSIS理论可有效评价燃油箱惰化性能,实现惰化系统最优分配方式的确定;②综合考虑氧气体积分数下降速度特性和均匀特性时,半均匀进气的富氮气体分配方式为最佳;③速度性为唯一评价指标时,非均匀进气的富氮气体分配方式为最佳;均匀性为唯一评价指标时,半均匀进气的富氮气体分配方式为最佳.
Research on nitrogen-enrich air optimal distribution mode based on entropy-weight improvement TOPSIS method
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.

fuel tank inertingnitrogen-enrich airmulti-index comprehensive evaluation theoryTOPSISmulti-compartment

邵垒、彭阳、张超、卢夏、杨文举、黄旭颖

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重庆交通大学 航空学院,重庆 400074

中国航空工业集团有限公司 合肥江航飞机装备股份有限公司,合肥 230051

重庆理工大学 两江国际学院,重庆 401135

燃油箱惰化 富氮气体 多指标综合评价 优劣解距离法 多隔舱

国家自然科学基金-中国民用航空总局联合资助项目重庆市自然科学基金面上项目重庆市教委科学技术研究计划飞行器环境控制与生命保障工信部重点实验室开放基金

U1933121CSTB2022NSCQ-MSX1301KJQN201900738KLAECLS-E-202002

2024

10.13224/j.cnki.jasp.20210486

航空动力学报
中国航空学会

航空动力学报

CSTPCD北大核心
影响因子：0.59
ISSN：1000-8055
年,卷(期)：2024.39(3)
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