关键词: 湖北省科技重大资助项目(2021AAA007), 国家重点研发计划“网络协同制造和智能工厂”专项资助项目(2018YFB1701001)。

Abstract: With the improvement of design and manufacturing process intelligence,the research on production system simulation based on digital twin technology is of great significance for domestic autonomous industrial software.On the basis of analyzing the characteristics and application requirements of production system simulation software based on digital twin,the key technologies of production system simulation software were described,including digital twin,production system twin model construction,production system simulation optimization and discrete event-based simulation engine.The application of production system simulation software was summarized by integrating the current domestic and foreign production system simulation software.Based on the simulation software features of digital twin production system,and the close integration with digital twin model high-fidelity representation,efficient design,efficient simulation,and human-computer interaction,the technical challenges and trends of digital twin-based production system simulation software were discussed to provide reference for the independent research and development of digital twin-based production system simulation software in China.

Key words: Project supported by the Hubei Provincial Science and Technology Major Projects,China(No.2021AAA007),and the National Key Research and Development Program “Network Collaborative Manufacturing and Smart Factory” Special Foundation,China(No.2018YFB1701001).