Ontology-based information modeling method for digital twin creation of as-fabricated machining parts |
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| Affiliation: | 1. School of Mechanical Engineering and Automation, Beihang University, Beijing 100191, PR China;2. Key Laboratory of Aeronautics Smart Manufacturing, Beihang University, Beijing 100191, PR China;3. Beijing Engineering Technological Research Center of High-Efficient & Green CNC Machining Process, Beijing 100191, PR China;4. Department of Industrial and Systems Engineering, The Hong Kong Polytechnic University, Hung Hom, PR China;1. School of Mechanical Engineering, Northwestern Polytechnical University, Xi''an 710072, China;1. Institute of Advanced Manufacturing and Intelligent Technology, Beijing University of Technology, Beijing 100124, China;2. Beijing Key Laboratory of Advanced Manufacturing Technology, Beijing University of Technology, Beijing 100124, China;3. Key Laboratory of CNC Equipment Reliability, Ministry of Education, School of Mechanical and Aerospace Engineering, Jilin University, Jilin 130012, China;1. College of Mechanical Engineering, Donghua University, Shanghai 201620, China;2. College of Literature, Science and the Arts, The University of Michigan, Ann Arbor, MI 48109, USA;1. School of Mechanical Engineering, Shandong University, Jinan, China;2. Key Laboratory of High Efficiency and Clean Mechanical Manufacture at Shandong University, Ministry of Education, Jinan, China;3. National Demonstration Center for Experimental Mechanical Engineering Education at Shandong University, Jinan, China;4. Peng Cheng Laboratory, Shenzhen 518000, China |
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| Abstract: | The Digital Twin concept, as the cutting edge of digital manufacturing solution for modern industries, plays a significant role in the Industry 4.0 era. One key enabling technology for developing a DT is the information modeling of physical products, so as to combine the physical world with the cyberspace more extensively and closely. Therefore, the modeling approach to managing as-fabricated data of physical products, which faithfully reflects the product's physical status, emerges to be pivotal. This paper addresses the problem of modeling as-fabricated parts in the machining process, which is difficult to accomplish by relevant methods, and hinders the long-term data archiving and reuse of process data. Furthermore, to fill the gap, an ontology-based information modeling method of as-fabricated parts is proposed as the recommendation to create DTs for as-fabricated parts. It provides a simple and standardized process for companies to create DTs of as-fabricated parts by specifying the information classification, the contents to be modeled and the modeling method. To validate the effectiveness of the proposed approach, a case study is undertaken in an aviation manufacturing plant at last. The result shows that the proposed information modeling methodology is readily to DT creation of as-fabricated parts. |
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