基于熵权改进TOPSIS理论的富氮气体最优分配方式研究

邵垒; 彭阳; 张超; 卢夏; 杨文举; 黄旭颖

doi:10.13224/j.cnki.jasp.20210486

基于熵权改进TOPSIS理论的富氮气体最优分配方式研究

doi: 10.13224/j.cnki.jasp.20210486

邵垒^1,,
彭阳¹,
张超²,
卢夏²,
杨文举¹,
黄旭颖³

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

基金项目: 国家自然科学基金委员会-中国民航局民航联合研究基金（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项目（KJQN201900738）；飞行器环境控制与生命保障工业和信息化部重点实验室开放课题（KLAECLS-E-202002）

详细信息

作者简介:
邵垒（1989-），男，讲师，博士，主要从事飞机燃油箱防火抑爆技术等研究。E-mail：shaolei@cqjtu.edu.cn

中图分类号: V228
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出版历程
- 收稿日期: 2021-09-03
- 网络出版日期: 2023-11-29

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

1.
School of Aeronautics，Chongqing Jiaotong University，Chongqing 400074，China
2.
Hefei Jianghang Aircraft Equipment Company，Limited，Aviation Industry Corporation of China，Hefei 230051，China
3.
Liangjiang International College，Chongqing University of Technology，Chongqing 401135，China

摘要

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（technique 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。
- 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
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.
- fuel tank inerting /
- nitrogen-enrich air /
- multi-index comprehensive evaluation theory /
- TOPSIS /
- multi-compartment

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图 1 惰化管路布置方案图

Figure 1. Layout plan of inerting pipeline

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图 2 油箱结构及网格划分（单位：m）

Figure 2. Fuel tank structure and meshing (unit: m)

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图 3 油箱内氧气体积分数分布图

Figure 3. Diagram of oxygen volume fraction distribution of fuel tank

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表 1 各方案的入口流量大小

Table 1. Inlet flow rate of each schemes

方案	气体入口位置	每个入口流量/（kg/s）
1	隔舱1	0.75
2	隔舱1、2、3、4	0.1875
3	隔舱1、2	0.375
4	隔舱1、3	0.375
5	隔舱1、4	0.375

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表 2 5种方案的速度性指标

Table 2. Decrease rate index of five schemes

方案	隔舱1/s	隔舱2/s	隔舱3/s	隔舱4/s
1	23.25	76.47	98.24	124.97
2	96.99	114.06	117.32	114.14
3	48.63	59.00	96.34	124.39
4	45.87	149.03	74.60	113.26
5	47.46	154.91	204.96	105.64

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表 3 5种方案的均匀性指标

Table 3. Uniformity index of five schemes

方案	隔舱1/10⁻²	隔舱2/10⁻²	隔舱3/10⁻²	隔舱4/10⁻²
1	2.10	0.66	0.56	2.19
2	0.77	1.55	1.75	1.60
3	1.59	1.36	0.36	2.17
4	1.65	3.45	0.08	1.52
5	1.60	3.84	6.15	1..36

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表 4 综合评价的熵值与熵权

Table 4. Entropy value and entropy weight of comprehensive evaluation

指标		熵值E_j	熵权W_j
速度性	隔舱1	0.938	0.087
	隔舱2	0.961	0.054
	隔舱3	0.959	0.058
	隔舱4	0.999	0.002
均匀性	隔舱1	0.973	0.038
	隔舱2	0.895	0.148
	隔舱3	0.575	0.597
	隔舱4	0.988	0.017

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表 5 综合评价结果

Table 5. Comprehensive evaluation results

方案	D_i⁺	D_i⁻	C_i	排名
1	0.529	0.047	0.081	2
2	0.414	0.164	0.284	4
3	0.543	0.037	0.064	1
4	0.565	0.078	0.122	3
5	0.034	0.570	0.944	5

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表 6 速度性指标的熵权

Table 6. Entropy weight of decrease rate index

参数	速度性
参数	隔舱1	隔舱2	隔舱3	隔舱4
熵值E_j	0.938	0.961	0.959	0.999
熵权W_j	0.433	0.270	0.288	0.009

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表 7 速度性指标的评价结果

Table 7. Evaluation results of decrease rate index

方案	D_i⁺	D_i⁻	C_i	排名
1	0.282	0.030	0.096	1
2	0.099	0.258	0.723	5
3	0.220	0.088	0.286	2
4	0.217	0.120	0.356	3
5	0.166	0.184	0.526	4

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表 8 均匀性指标的熵权

Table 8. Entropy weight of uniformity index

参数	均匀性
参数	隔舱1	隔舱2	隔舱3	隔舱4
熵值E_j	0.973	0.895	0.575	0.988
熵权W_j	0.433	0.270	0.288	0.009

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表 9 均匀性指标的评价结果

Table 9. Evaluation results of uniformity index

方案	D_i⁺	D_i⁻	C_i	排名
1	0.658	0.058	0.081	2
2	0.517	0.195	0.274	4
3	0.677	0.041	0.057	1
4	0.704	0.093	0.117	3
5	0.008	0.712	0.989	5

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