Research on Dynamic Cooperative Replenishment Optimization of Shipbuilding Enterprise Inventory Control under Uncertainty

Ziquan Xiang,Wenjie Ge,Muhammad Hamza Naseem,Jiaqi Yang

doi:10.3390/su14042113

Abstract

Aiming at the problem of high inventory control costs of shipbuilding enterprises under uncertain conditions, this paper constructs and optimizes a dynamic collaborative replenishment model of shipbuilding enterprises inventory control. This model adopts integrated supply chain management theory and collaborative theory to analyze the inventory control principle in shipbuilding enterprises, and its goal is to minimize the cost and maximize the service level. The dynamic replenishment strategy from two types of suppliers is given by using mathematical knowledge, such as optimization theory, probability theory, and mathematical statistics to solve the model. Finally, shipbuilding enterprises take paint inventory control as an example to test and verify the validity and correctness of the model by using numerical simulation and sensitivity analysis. The results show that the dynamic collaborative replenishment model of shipbuilding enterprises inventory control can make full use of the advantages of two types of suppliers. Additionally, it cannot only quickly respond to demand changes, but can also maintain low operating costs. Therefore, the dynamic collaborative replenishment model could effectively solve the problem of high inventory control costs of shipbuilding enterprises under uncertain conditions and has great application value and practical significance.

Highlights

Inventory refers to the sum of various items and resources stored in an enterprise organization and is an unavoidable aspect of the operation and management of the production system
If the original monthly ordering method of the shipbuilding enterprise is adopted, the monthly fixed order quantity will be determined at the beginning of the year, the monthly order will be 3600 barrels per month, and the order will be completed at one time
In the total cost calculated by the monthly replenishment method adopted by the shipbuilding company, the inventory storage fee reached 518,400 US dollars, indicating that the inventory storage cost took up a large amount of the shipbuilding Sustainability 2022, 14, x FOR PEER REVIEW

Summary

Introduction

Inventory refers to the sum of various items and resources stored in an enterprise organization and is an unavoidable aspect of the operation and management of the production system. People set up inventories to prevent shortages, just like water stored in reservoirs. They have the role of maintaining the continuity of the production process, sharing the ordering costs, and quickly satisfying the users’. In inventory management costs, the cost of materials required generally exceeds 60% of the total production cost. Shipbuilding companies have complicated production processes and many uncertain factors. They are difficult for the purchasing department to accurately grasp when purchasing materials, and for the inventory department, they are not easy to manage when controlling the inventory

Results

Discussion

Conclusion