A Requirements Driven Digital Twin Framework: Specification and Opportunities
A Requirements Driven Digital Twin Framework: Specification and Opportunities
复制标题
DOI：
10.1109/access.2020.3000437
复制
发表时间：
2020-01-01
期刊：
影响因子：
3.9
通讯作者：
Tilbury, Dawn M.
中科院分区：
文献类型：
--
作者：
Moyne, James;Qamsane, Yassine;Tilbury, Dawn M.
在智能制造（SM）或工业4.0（I4.0）的原则中，数字孪生（DT）代表了组件和系统的虚拟表示能力，被认为是当今破坏工程和设计的最大技术趋势。DT已在基于模型的过程控制和预测性维护等领域使用多年，但需要一个框架来支持DT技术在SM或I4.0演进中的预期普及。通过分析数字技术定义、目前使用的数字技术、不久的将来预期的数字技术应用、长期的数字技术趋势和统计管理中的数字技术愿景，得出了数字技术框架的一系列要求。这些需求包括跨整个DT生命周期的可重用性、互操作性、可扩展性、可维护性、可扩展性和自主性等要素。DT技术的基线框架已经开发，解决了这些要求的许多方面，并通过额外的规范更充分地满足要求。基线框架包括DT的定义和DT的面向对象（O-O）架构，该架构定义了DT类的泛化、聚合和实例化。使用和扩展基线框架的案例研究说明了其在支持DT解决方案和SM趋势方面的优势。
Among the tenets of Smart Manufacturing (SM) or Industry 4.0 (I4.0), digital twin (DT), which represents the capabilities of virtual representations of components and systems, has been cited as the biggest technology trend disrupting engineering and design today. DTs have been in use for years in areas such as model-based process control and predictive maintenance, however moving forward a framework is needed that will support the expected pervasiveness of DT technology in the evolution of SM or I4.0. A set of requirements for a DT framework has been derived from analysis of DT definitions, DTs in use today, expected DT applications in the near future, and longer-term DT trends and the DT vision in SM. These requirements include elements of re-usability, interoperability, interchangeability, maintainability, extensibility, and autonomy across the entire DT lifecycle. A baseline framework for DT technology has been developed that addresses many aspects of these requirements and enables the addressing of the requirements more fully through additional specification. The baseline framework includes a definition of a DT and an object-oriented (O-O) architecture for DTs that defines generalization, aggregation and instantiation of DT classes. Case studies using and extending the baseline framework illustrate its advantages in supporting DT solutions and trends in SM.