摘要
针对实现低刚度航空薄壁结构组件/部件高性能装配缺少现场物理特性数据与模型基础的问题,对融合现场物理特性约束的虚拟装配样机构建实现技术进行了研究。首先,定义了虚拟装配样机的技术内涵及构建框架,其本质是一个高度拟实化的数字孪生装配系统,可以在虚拟环境中进行多尺度的装配几何量与物理量拟实化仿真,预先分析验证装配性能;其次,从多源异构装配数据采集与处理、多类别装配孪生模型融合性建模、装配样机系统虚实融合同步性建模、装配过程与装配质量状态可视化建模4个方面,详细阐述融合现场物理特性约束的航空薄壁结构虚拟装配样机高保真动态构建及实现技术,并提出了虚拟装配样机的“双线”、“分级”综合构建措施,从而为装配过程的拟实化仿真及装配质量的精准控制提供数据及模型依据,并为装配质量的主动实时控制奠定坚实基础。
Aiming at the problems of lacking of site physical characteristic data and model foundation for highperformance assembly of aeronautical thin-walled structural component with low stiffness,construction and actualizing techniques for virtual assembly prototype for aeronautical structures with on-site physical characteristics constraint were studied.Firstly,the technical connotation and construction framework of virtual assembly prototype were defined.Its essence was a highly quasi reality digital twin assembly system,which could not only carry out multi-scale assembly geometric and physical quantity simulation in virtual environment,but also analyze and verify assembly performance in advance.Secondly,high fidelity and dynamic construction on virtual assembly prototype for aeronautical thinwalled structure fused with on-site physical characteristics was elaborated from four implementation plans,i.e.multisource heterogeneous assembly data acquisition and processing,multi-class assembly digital twin integrated modeling,synchronous modeling of linking virtual with reality for assembly prototype system,visual modeling of assembly process and assembly quality condition.Finally,the“double line”and“different classification”comprehensive construction measures of virtual assembly prototype were adopted,which could provide the data/model basis for the virtual simulation during the assembly process and the accurate control of assembly quality.With the above research,a solid foundation for active real-time control of assembly quality can be established.
作者
郭飞燕
肖庆东
李浩
郑璐晗
张硕
GUO Feiyan;XIAO Qingdong;LI Hao;ZHENG Luhan;ZHANG Shuo(University of Science and Technology Beijing,Beijing 100083,China;AVIC Manufacturing Technology Institute,Beijing 100024,China;Beijing Xinghang Mechanical-Electrical Eqiupment Co.,Ltd.,Beijing 100074,China)
出处
《航空制造技术》
CSCD
北大核心
2022年第18期24-34,共11页
Aeronautical Manufacturing Technology
基金
国家自然科学基金(52175450、51805502)
国防基础科研项目(JCKY2019205B002)。
关键词
航空结构装配
虚拟装配样机
数字孪生
双线构建
多层级虚实融合
Aeronautical structure assembly
Virtual assembly prototype
Digital twin
Double-line construction
Multi-level virtual-real fusion
