Digital twin-based smart assembly process design and application framework for complex products and its case study |
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| Affiliation: | 1. School of Mechanical Engineering, Southeast University, Nanjing 211198, China;2. Beijing Institute of Space Long March Vehicle, Beijing 100076, China;3. Beijing Spacecrafts Limited Company, Beijing 100094, China;1. Institute of Internet of Things and Logistics Engineering, Jinan University, Zhuhai, 519070, China;2. School of Intelligent Systems Science and Engineering, Jinan University, Zhuhai, 519070, China;3. GREE Electric Appliances, INC. of Zhuhai, Zhuhai, 519070, China;4. Science and Technology on Reliability Physics and Application of Electronic Component Laboratory, The Fifth Electronics Research Institute of Ministry of Industry and Information Technology, Guangzhou, 510610, China;1. School of Information Engineering, Wuhan University of Technology, Wuhan 430070, China;2. School of Mechanical and Electronic Engineering, Wuhan University of Technology, Wuhan 430070, China;3. Hubei Key Laboratory of Broadband Wireless Communication and Sensor Networks (Wuhan University of Technology), Wuhan 430070, China;1. School of Mechano-Electronic Engineering, Xidian University, Xi''an, China;2. Key Laboratory of High Performance Manufacturing for Aero Engine (Northwestern Polytechnical University), Ministry of Industry and Information Technology, Xi’an, 710072, China;1. Hubei Key Laboratory of Modern Manufacturing and Quality Engineering, School of Mechanical Engineering, Hubei University of Technology, Wuhan 430068, China;2. Hubei Digital Manufacturing Key Laboratory, School of Mechanical and Electronic Engineering, Wuhan University of Technology, Wuhan 430070, China |
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| Abstract: | With rapid advances in new generation information technologies, digital twin (DT), and cyber-physical system, smart assembly has become a core focus for intelligent manufacturing in the fourth industrial evolution. Deep integration between information and physical worlds is a key phase to develop smart assembly process design that bridge the gap between product assembly design and manufacturing. This paper presents a digital twin reference model for smart assembly process design, and proposes an application framework for DT-based smart assembly with three layers. Product assembly station components are detailed in the physical space layer; two main modules, communication connection and data processing, are introduced in the interaction layer; and we discuss working mechanisms of assembly process planning, simulation, predication, and control management in the virtual space layer in detail. A case study shows the proposed approach application for an experimental simplified satellite assembly case using the DT-based assembly application system (DT-AAS) to verify the proposed application framework and method effectiveness. |
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| Keywords: | Smart assembly Digital twin Cyber-physical system Assembly process design Complex product Application framework |
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