航天薄壁件旋压成型数字孪生高保真建模方法  

Digital twin high-fidelity modeling method for spinning forming of aerospace thin-walled parts

作　　者：胡富琴 杨芸 刘世民 郑小虎 吕晓雷 鲍劲松 HU Fuqin;YANG Yun;LIU Shimin;ZHENG Xiaohu;LYU Xiaolei;BAO Jinsong(Institute of Intelligent Manufacturing, College of Mechanical Engineering, Donghua University, Shanghai 201620, China;Shanghai Xinli Power Equipment Research Institute, Shanghai 201109, China)

机构地区：[1]东华大学机械工程学院智能制造研究所,上海201620 [2]上海新力动力设备研究所,上海201109

出　　处：《计算机集成制造系统》2022年第5期1282-1292,共11页Computer Integrated Manufacturing Systems

基　　金：国家自然科学基金资助项目(51807022);2018年工业互联网创新发展工程资助项目。

摘　　要：为解决制造过程中多学科、多物理量、多尺度、动态时变等因素带来的虚实融合困难问题,以航天薄壁件旋压成型加工过程为对象,提出一种数字孪生高保真建模方法。该方法分别从几何、机理和数据3个层次描述和定义模型,并基于构建的模型研究了旋压加工过程知识获取和数据虚实映射过程。为评估所建模型的有效性,给出了一种数字孪生模型的保真度评估方法。通过案例验证了所提数字孪生高保真建模方法的有效性和模型的可评估性。To solve the difficulties in the integration and interaction of information space and physical space caused by factors such as multi-discipline,multi-physical quantity,multi-scale and dynamic time-varying in the manufacturing process,a digital twin high-fidelity modeling method was proposed by taking the spinning forming process of aerospace thin-walled parts as the object.The spinning digital twin high-fidelity model was described and defined from three levels of geometry,mechanism and data.Based on the constructed digital twin model,the knowledge acquisition process of spinning processing was studied.The data mapping and comparison process of the spinning process was studied.In addition,to evaluate the validity of the built model,a fidelity evaluation method of the digital twin model was proposed.A case verification showed that the proposed digital twin high-fidelity modeling method was effective and the constructed model could be evaluated.

关 键 词：数字孪生 高保真建模 航天薄壁件 旋压成型 虚实映射 模型评估 

分 类 号：TH166[机械工程—机械制造及自动化]