数据驱动的汽车总装线建模与仿真技术研究

Data-Driven Modeling and Simulation Technology of Automobile General Assembly Line

现代制造业的生产模式向柔性制造和客户化定制方向发展,为了提高制造系统的快速响应能力,实现快速仿真分析,提出基于数据驱动的建模与仿真方法,其具有建模周期短、模型可读性、可重用性较高的特点。利用IDEF1X建模方法建立模型的底层数据结构,基于Arena构建仿真模型生成器,利用已建好的数据模型提供的属性信息,自动生成目标系统的仿真模型。采用层次化建模方法将总装线的管理和控制过程分解为不同层次,建立起详细程度不同的仿真模型,将建模元素与仿真控制逻辑分离,使仿真的控制部分相对独立。最后以某汽车生产企业的示例总装线为例,设计数据驱动的建模方案和仿真运行逻辑,通过实验验证了该方法的可行性。

The production mode of modern manufacturing society transform to flexible manufacturing and customization.To improve the responsiveness of production system,a new approach based on data-driven modeling and simulation methodology is proposed,it can automatically generate the simulation model of production system and realize rapid modification.The generated model also has high efficiency,readability and reusability.The approach is developed for an automobile assembly line.Through the modeling approach of IDEF1X,a data structure of simulation model was constructed,a model simulator was implemented in Arena by VBA program,then a simulation model for target production system was built automatically through the attribute values in the data structure.The management and control process of assembly line is divided into different levels by hierarchical modeling approach,modeling element and control logic of simulation are separated.The case study of the automobile assembly line demonstrates the validity of data-driven modeling and simulation methodology.