Fine-grained decomposition of complex digital twin systems driven by semantic-topological-dynamic associations

IF 12.2 1区 工程技术 Q1 ENGINEERING, INDUSTRIAL Journal of Manufacturing Systems Pub Date : 2024-10-30 DOI:10.1016/j.jmsy.2024.10.023
Xiaojian Wen , Yicheng Sun , Shimin Liu , Jinsong Bao , Dan Zhang
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Abstract

Complex digital twin (DT) systems offer a robust solution for design, optimization, and operational management in industrial domains. However, in an effort to faithfully replicate the dynamic changes of the physical world with high fidelity, the excessively intricate and highly coupled system components present modeling challenges, making it difficult to accurately capture the system's dynamic characteristics and internal correlations. Particularly in scenarios involving multi-scale and multi-physics coupling, complex systems lack adequate fine-grained decomposition (FGD) methods. This results in cumbersome information exchange and consistency maintenance between models of different granularities. To address these limitations, this paper proposes a method for multi-level decomposition of complex twin models. This method constructs a FGD model for DTs by integrating three key correlation mechanisms between components: semantic association, dynamic association, and topological association. The decomposed model achieves reasonable simplification and abstraction while maintaining the accuracy of the complex system, thereby balancing computational efficiency and simulation precision. The case study validation employed a marine diesel engine piston production line to test the proposed decomposition method, verifying the effectiveness of the approach.
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由语义-拓扑-动态关联驱动的复杂数字孪生系统的精细分解
复杂的数字孪生(DT)系统为工业领域的设计、优化和运营管理提供了强大的解决方案。然而,为了高保真地忠实再现物理世界的动态变化,过于复杂和高度耦合的系统组件给建模带来了挑战,难以准确捕捉系统的动态特性和内部关联。特别是在涉及多尺度和多物理耦合的情况下,复杂系统缺乏适当的细粒度分解(FGD)方法。这导致不同粒度模型之间的信息交换和一致性维护非常繁琐。针对这些局限性,本文提出了一种复杂孪生模型的多级分解方法。该方法通过整合各组成部分之间的三种关键关联机制:语义关联、动态关联和拓扑关联,构建了 DT 的 FGD 模型。分解后的模型在保持复杂系统精度的同时,实现了合理的简化和抽象,从而兼顾了计算效率和仿真精度。案例研究验证采用了船用柴油机活塞生产线来测试所提出的分解方法,验证了该方法的有效性。
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来源期刊
Journal of Manufacturing Systems
Journal of Manufacturing Systems 工程技术-工程:工业
CiteScore
23.30
自引率
13.20%
发文量
216
审稿时长
25 days
期刊介绍: The Journal of Manufacturing Systems is dedicated to showcasing cutting-edge fundamental and applied research in manufacturing at the systems level. Encompassing products, equipment, people, information, control, and support functions, manufacturing systems play a pivotal role in the economical and competitive development, production, delivery, and total lifecycle of products, meeting market and societal needs. With a commitment to publishing archival scholarly literature, the journal strives to advance the state of the art in manufacturing systems and foster innovation in crafting efficient, robust, and sustainable manufacturing systems. The focus extends from equipment-level considerations to the broader scope of the extended enterprise. The Journal welcomes research addressing challenges across various scales, including nano, micro, and macro-scale manufacturing, and spanning diverse sectors such as aerospace, automotive, energy, and medical device manufacturing.
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