期刊
JOURNAL OF MANUFACTURING SYSTEMS
卷 65, 期 -, 页码 406-420出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jmsy.2022.10.004
关键词
Smart assembly; Digital twin; Digital thread; Aircraft assembly; Directed graph
资金
- National Key Research and Development Plan, China [2019YFB1707501]
- National Natural Science Foundation of China [51975520]
This paper proposes a digital thread-based digital twin (DTDT) framework for managing the complex and challenging aircraft assembly process. The framework takes advantage of both digital twin and digital thread, providing better data management, controllability, and traceability. A case study of the drilling and riveting process confirms the effectiveness of the framework in improving the efficiency of the aircraft assembly process.
Digital twins are proposed to manage the industrial production sites by mapping physical space entities to virtual spaces. Existing digital twin modeling methods are mainly realized through deploying several modules, including a physical module, a virtual module, a service module, a data module, and a connection module. However, the assembly environment of the aircraft assembly process is complex and challenging to manage. These methods do not provide the data flow and the intrinsic interaction between modules. As a consequence, a digital threadbased modeling digital twin (DTDT) framework with five modules is established in this paper, which takes advantage of both the digital twin and digital thread. Benefited by better data management, the DTDT framework would be conducive to the controllability and traceability of the manufacturing process and product quality. The key characteristics of products, process parameters, and equipment operation conditions, are stored in the database module. And then, the digital thread module will link the entity module and virtual module together by building the directed graph, in which interfaces are provided to the system services module for the process monitoring and processing quality prediction. Finally, the implementation of the DTDT framework is shown through a case of the drilling and riveting process in aircraft assembly. The comparative analysis confirms that this model can improve the efficiency of the aircraft assembly process.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据