基于熵权改进TOPSIS理论的富氮气体最优分配方式研究
Research on nitrogen-enrich air optimal distribution mode based on entropy-weight improvement TOPSIS method
邵垒 1彭阳 1张超 2卢夏 2杨文举 1黄旭颖3
作者信息
- 1. 重庆交通大学 航空学院,重庆 400074
- 2. 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
- 3. 重庆理工大学 两江国际学院,重庆 401135
- 折叠
摘要
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.
Abstract
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.
关键词
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Key words
fuel tank inerting/nitrogen-enrich air/multi-index comprehensive evaluation theory/TOPSIS/multi-compartment引用本文复制引用
基金项目
国家自然科学基金-中国民用航空总局联合资助项目(U1933121)
重庆市自然科学基金面上项目(CSTB2022NSCQ-MSX1301)
重庆市教委科学技术研究计划(KJQN201900738)
飞行器环境控制与生命保障工信部重点实验室开放基金(KLAECLS-E-202002)
出版年
2024
NETL
NSTL
万方数据