Simulation of Emergency Medical Materials Collaborative Distribution Considering Supplier Clustering

doi:10.16182/j.issn1004731x.joss.21-0568

Abstract

Abstract:

Aiming at the insufficient local government medical material reserves and low distribution efficiency to public health emergencies, consider supplier clustering a two-stage emergency medical supplies public-private collaborative location and alloation model is designed. In for disaster preparedness, fuzzy clustering algorithm to realize supplier clustering, and a cooperation mechanism with the government is establish realize the joint storage of emergency medical supplies; In the early stage of rescue, relying on the government and various suppliers' material storage and transportation capabilities, a location allocation simulation model to minimize the weighted sum of total logistics cost and demand unsatisfied rate is constructed. An improved non-dominated sorting genetic algorithm is designed to solve this two-stage model. An example of the design of medical supplies scheduling in Wuhan during Covid-19 epidemic and the impact of supplier clustering on the model is compared. The simulation results show that the model has advantages in coordinating the emergency medical supplies reserve, transportation and scheduling decisions of the government and suppliers.

Key words: public health emergencies, emergency medical supplies, location allocation problem, fuzzy clustering, public private collaboration, non-dominated sorting genetic algorithm (NSGA-Ⅱ)

CLC Number:

TP319.9

Zhe Wang, Hongyuan Shao, Zihao Cong, Wenwen Ma. Simulation of Emergency Medical Materials Collaborative Distribution Considering Supplier Clustering[J]. Journal of System Simulation, 2022, 34(10): 2303-2311.

Figures/Tables 11

Table 1

Binary code definitions of language terms

语言术语	$α m i, 1$	$α m i, 2$	$α m i, 3$	$α m i, 4$
非常高	1	1	1	1
高	1	1	1	0
中	1	1	0	0
低	1	0	0	0
非常低	0	0	0	0

Table 1

Fig. 1

Fig. 2

Table 3

Table 4

Government emergency logistics cost

物资种类	政府单位物资储备成本	政府单位物资运输成本	应急配送中心单位运输成本
物资种类	$c p r$	$l p j r$	$l j i r$
A	2.5	0.06	0.06
B	40	0.32	0.032

Table 4

Table 5

Supplier emergency logistics cost

物资种类	高协作组单位储备成本	高协作组单位运输成本	普通协作制作组单位储备成本	普通协作制作组单位运输成本
物资种类	$c h r$	$l h j r$	$c n r$	$l n j r$
A	2.2	0.04	2.4	0.05
B	42	0.3	44	0.35

Table 5

Table 6

Table 7

Fig. 3

Table 8

Table 9

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需求点	编号	需求紧迫度	各周期需求量(A:个 B:件)
需求点	编号	需求紧迫度	T=1	T=2	T=3
江岸区	1	0.443	A:2 800 B:1 360	A:4 000 B:1 636	A:6 000 B:2 950
江汉区	2	0.771	A:4 600 B:1 850	A:6 200 B:2 150	A:8 400 B:4 030
硚口区	3	0.705	A:4 200 B:1 650	A:5 700 B:2 000	A:8 000 B:3 800
汉阳区	4	0.345	A:2 600 B:1 250	A:3 800 B:1 720	A:5 600 B:2 620
武昌区	5	0.852	A:5 400 B:2 350	A:6 400 B:2 300	A:9 200 B:4 360
青山区	6	0.312	A:2 450 B:960	A:3 600 B:1 320	A:5 300 B:2 440
洪山区	7	0.508	A:4 100 B:1 430	A:5 600 B:1 900	A:7 800 B:3 550
蔡甸区	8	0.276	A:2 400 B:815	A:3 300 B:1 052	A:4 800 B:2 260
江夏区	9	0.207	A:1 900 B:675	A:2 750 B:855	A:4 200 B:1 950
黄陂区	10	0.163	A:2 300 B:780	A:3 150 B:1 060	A:4 700 B:2 130
东西湖区	11	0.181	A:2 500 B:845	A:3 300 B:1 250	A:5 100 B:2 420
新洲区	12	0.114	A:1 800 B:742	A:2 600 B:1 000	A:3 500 B:1 550
汉南区	13	0.152	A:1 700 B:630	A:2 200 B:850	A:4 000 B:1 750

需求点	周期
	T=1			目标函数值		T=2			目标函数值		T=3			目标函数值
	配送中心	物资A(个)	物资B(件)	Z₁	Z₂×10^-6(元)	配送中心	物资A(个)	物资B(件)	Z₁	Z₂×10^-6(元)	配送中心	物资A(个)	物资B(件)	Z₁	Z₂×10^-6(元)
江岸区	Ⅵ	2 612	1 360	0.547 5	1.295	Ⅵ	3 957	1 550	0.414	1.836	Ⅵ	6 000	2 950	0.297 3	2.928
江汉区	Ⅴ	4 380	1 850			Ⅴ	5 880	2 150			Ⅴ	8 400	4 030
硚口区	Ⅰ	4 172	1 611			Ⅲ	5 505	2 000			Ⅱ	8 000	3 800
汉阳区	Ⅴ	2 447	1 194			Ⅵ	3 422	1 720			Ⅴ、Ⅵ	4 605	2 115
武昌区	Ⅳ	5 176	2 307			Ⅳ	5 825	2 300			Ⅳ	9 088	4 353
青山区	Ⅰ	2 278	872			Ⅰ	3 570	1 320			Ⅰ	5 260	2 440
洪山区	Ⅴ	4 100	1 430			Ⅴ	5 597	1 804			Ⅰ、Ⅴ	7 800	3 497
蔡甸区	Ⅴ	2 392	635			Ⅴ	3 113	1 052			Ⅰ	4 188	2 260
江夏区	Ⅴ	1 732	675			Ⅲ、Ⅴ	2 065	855			Ⅲ	4 200	1 694
黄陂区	Ⅰ	1 949	678			1	2 230	1 060			Ⅱ	4 700	2 089
东西湖区	Ⅳ	1 768	596			Ⅳ	3 257	1 112			Ⅲ、Ⅳ	5 100	1 902
新洲区	Ⅳ	1 504	646			Ⅳ	2 225	773			Ⅱ	3 500	1 139
汉南区	Ⅳ	1 585	530			Ⅲ	2 169	850			Ⅲ	4 000	1 596