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Date of Publication:2022-10-09

Journal:大连理工大学学报

Affiliation of Author(s):建设工程学部

Volume:58

Issue:3

Page Number:254-260

ISSN No.:1000-8608

Abstract:Taking refrigerated container as the research obj ect,the effect of perishable characteristics and aging requirements of fresh goods on the transportation plan of refrigerated containers is studied. With the aim of minimizing the total cost and transportation time as the main constraint,a refrigerated container shipping network optimization model is established to ensure the optimal transportation plan under different combinations of supply and demand and transportation time requirement.The example results show that for origin and destination (OD)with short distance,transportation time of transit transportation increases by more than 60% compared with direct transportation, while the transportation cost increases by more than 15%,so direct transportation is selected.For OD with long distance,transit transportation is the optimal plan,which can achieve economies of scale.The sensitivity analysis of transportation time constraints shows that short distance transportation is insensitive to the change of transportation time constraints,and the transportation cost of direct transportation can be reduced by more than 10% compared with transit transportation,so direct transportation is always chosen when the condition is satisfied.While long distance transportation is greatly influenced by transportation time constraints,only when the transportation time constraints are met can transit transportation be chosen,or it can only choose direct transportation.

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