摘要
针对机加工三维工序模型重建过程繁琐、效率低等问题,提出了数字化的孪生工序动态模型生成方法;阐述了设计制造层次化数据信息数字化表达模型,构建了以加工特征为核心的信息集成的工艺孪生语义模型;将语义信息集成于工序节点中,通过分析节点间关联原则和属性机制,完成了以特征序列为加工主线的数字化工序节点链生成;通过数字空间三维特征工序谱模型及相关的构建算法,建立了基于数字节点链的具有拓扑结构的孪生工序动态模型;以典型箱体为例验证所提方法的可行性,该方法实现了三维模型的快速构建和语义信息的管理应用。
Aiming at the problems of cumbersome and low efficiency in the reconstruction process of the three-dimensional machining process model, this paper proposes a digital twin process dynamic model generation method. This paper expounds a digital expression model of hierarchical data information of design and manufacturing, and constructs a process twin semantic model of information integration featured with manufacturing as the core. The semantic information is integrated into the process node, and, by analyzing the association principle and attribute mechanism between nodes, the generation of digital process node chains with a featured sequence as the main processing line is completed. Through the three-dimensional featured sequence spectrum model of digital space and the related construction algorithms, a twin process dynamic model with topology structure based on digital node chains is established. A typical box is taken as an example to verify the feasibility of the proposed method. The method realizes rapid construction of the 3D model and management application of the semantic information.
作者
成彬
樊琛
CHENG Bin;FAN Chen(School of Science,Xi’an University of Architecture and Technology,Xi’an 710055,China;School of Mechanical and Electrical Engineering,Xi’an University of Architecture and Technology,Xi’an 710055,China)
出处
《兵器装备工程学报》
CAS
CSCD
北大核心
2023年第2期69-76,共8页
Journal of Ordnance Equipment Engineering
基金
国家自然科学基金项目(51975449)
陕西省自然科学基金项目(2021JM-360)。
