基于数字孪生的铸造工艺过程环境影响评价方法  

Assessment Method of Environmental Impact of Casting Processes Based on Digital

作　　者：谷振宇[1] 何仪 李东洋 Twin GU Zhenyu;HE Yi;LI Dongyang(School of Automation,Chongqing University,Chongqing,400044)

机构地区：[1]重庆大学自动化学院,重庆400044

出　　处：《中国机械工程》2023年第12期1465-1475,共11页China Mechanical Engineering

基　　金：国家重点研发计划(2018YFB2002102)。

摘　　要：围绕铸造企业开展工艺过程环境影响与碳排放评价的新需求,针对工艺过程动态评价中动态数据的一致性与动态数据处理问题,以铸造工艺过程为研究对象,将数字孪生技术引入铸造工艺过程环境影响与碳排放的评价中,构建了面向环境影响评价的铸造工艺过程数字孪生模型,并将其融合到生命周期评价的基本过程中,提出了基于数字孪生的铸造工艺环境影响评价方法。通过由孪生模型向实例模型和实例孪生体的演化,保证了工艺过程数据结构的一致性,同时通过生成不同阶段的实例孪生体实现动态场景数据的承载,实现了工艺过程动态数据的处理。最后,以某铸造企业3.5 t运输机V法线铸造工艺过程为例,展示了所提方法在工艺过程环境影响评价中的应用。Focusing on the new needs of foundry enterprises to carry out process environmental impacts and carbon emission evaluations,and addressing the issues of consistent management of dynamic data in dynamic evaluations of processes,the casting processes were taken as the research object and the digital twin technologies were introduced into the assessments of the environmental impacts and carbon emissions of the casting processes.A digital twin model of the casting processes for environmental impact assessments was constructed and integrated into the basic process of LCA evaluation,and a digital twin-based method for environmental impact assessments of the casting processes was proposed.By evolving from twin models to instance models and instance twins,the consistency of the process data structure was ensured,while the dynamic scene data carrying was realized by generating instance twins of different stages,and the management of dynamic process data was realized.Finally,the application of the proposed method in the environmental impact assessments of the processes was illustrated by the example of the 3.5-ton carrier V-normal casting processes in a foundry.

关 键 词：生命周期评价 环境影响评价 铸造工艺过程 数字孪生 

分 类 号：TH164[机械工程—机械制造及自动化]