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Keywords

blockchain, evolutionary Game, cloud manufacturing platform, supply and demand cooperation

Abstract

The manufacturing industry is the main body of the national economy. After the accumulation and precipitation of reform and opening up, the scale of China's manufacturing industry accounts for close to 30% of the world, but China's manufacturing industry is still in the low-end of the international division of labor, and the problem of being at the low-end of the "smile curve" is difficult to solve. The root causes are mainly reflected in the weak ability of technology development and technology innovation, incomplete market mechanism, low degree of mechanization, low efficiency and so on. As a service-oriented, knowledge-based networked intelligent manufacturing model, cloud manufacturing provides the manufacturing industry with all kinds of manufacturing activities that can be obtained at any time and used on demand. However, in the process of implementing cloud manufacturing services under the traditional model, there will also be some risks and problems, such as the lack of continuous, stable and high-quality manufacturing services in traditional cloud manufacturing, and low efficiency in the quality and timeliness of manufacturing task execution on the demand side of manufacturing resources. Blockchain technology, as an emerging distributed storage and trust mechanism based on decentralized data sharing and smart contracts, can ensure the integrity, credibility, and traceability of cloud manufacturing services while ensuring data security and data privacy. In addition, blockchain technology can also provide comprehensive supervision of various transactions, manufacturing processes and quality audits in cloud manufacturing services, thus achieving more efficient, reliable and transparent cloud manufacturing services. The purpose of this study is to analyze the difference between the transaction behaviors of the supply and demand parties after the introduction of blockchain technology in the cloud manufacturing platform and the traditional mode. By building an evolutionary game model of the cloud platform operator, the manufacturing resource users and the manufacturing resource providers in the cloud manufacturing platform, and using MATLAB 2016b software to conduct simulation analysis. This paper explores the benefits and dynamic game of the tripartite evolution of cloud manufacturing under two different circumstances based on blockchain technology and traditional mode, and analyzes the effects of operating costs, waiting costs, default losses, reward and punishment mechanisms, cooperation benefits and default benefits on the results of the tripartite evolution game under two different modes of supply and demand cooperation transactions from theoretical and practical cases. The results of the study found that: blockchain technology-enabled cloud manufacturing service platform can reduce the operating costs of the cloud manufacturing platform, and this advantage can help attract cloud platform operators to adopt the blockchain model; the decentralisation, tampering and traceability characteristics of the blockchain technology make the potential losses suffered by the defaulting party significantly increase if there is a breach of contract by both the supply and demand partners, and therefore the introduction of blockchain technology can effectively Therefore, the introduction of blockchain technology can effectively inhibit the default behaviour of both supply and demand partners and reduce the risk of losses suffered by the cloud platform operator; in the service process of the cloud manufacturing platform, strengthen the protection of the reward and punishment system of the supply and demand contract or the smart contract, and strictly implement the penalties for the breach of contract, so as to effectively inhibit the breach of contract of both supply and demand parties; the cloud platform operator strictly monitors the performance of the supply and demand parties, and establishes a reasonable compensation system and standard in the smart contract to ensure that the rights and interests of the contract-abiding party are protected. The cloud platform operator strictly monitors the performance of the supply and demand parties and establishes a reasonable compensation system and standards in the smart contract to ensure that the rights and interests of the defaulting party are protected, which helps to enhance the credibility and service quality of the cloud manufacturing service platform, and thus increases the likelihood of the supply and demand parties to keep the contract. This paper explores the transaction and service process between the cloud platform operator and the supply and demand parties as well as the influencing factors of the strategy choices of the three parties of the game under the operation modes chosen by the cloud platform operator of the traditional and blockchain modes, expanding and deepening the research on the transaction behaviours of the supply and demand parties of the cloud manufacturing platform. It provides a new theoretical perspective for the systematic study of blockchain empowerment in cloud manufacturing platform. It is conducive to promoting the research of cloud manufacturing service platform, clarifying the advantages of blockchain empowerment, and providing reference significance for accelerating the digital transformation of cloud manufacturing platform.

DOI

10.16315/j.stm.2024.05.001

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