孪生技术使能的航天关重件机加车间集成框架研究

Study on Digital Twin-Based Integration Framework of Aerospace Key Parts Machining Workshop

针对新形势下航天飞行器关重件机加车间日益显现的工艺优化周期长、资源配置效率低、质量保证手段单一等瓶颈问题,引入数字孪生(Digital twin)的理念、手段、工具和方法,结合机加车间的生产运行特点,提出了基于数字孪生技术的航天关重件机加车间集成框架;阐述了孪生环境、映射枢纽以及使能平台等核心功能要素的内涵;论述了通过孪生数据实现加工工艺优化、混流排产与调度以及质量诊断、预测与控制的技术途径;讨论了机加车间孪生系统的开发与集成要点,从而实现车间动态迭代优化与高效协同管控的目标。

In view of the increasingly prominent bottlenecks in machining workshop for aerospace key parts under the new situation,such as the long cycle of process optimization,the low efficiency of resource allocation and the lack of means of quality assurance,the concept and methods of digital twins are introduced.Combined with the production and operation characteristics of machining workshop,the digital twin-based integration framework of aerospace key parts machining workshop is introduced.The ways of achieving the twin environment,the mapping hub and the enabling platform through twin data are explained.The optimization of the processing,the mixed-flow scheduling,as well as the quality diagnosis,prediction and control technology are discussed.The development and the integration of machining workshop digital twin system are also discussed so as to achieve the goal of dynamic iterative optimization and efficient collaborative management of the workshop.