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Dynamic assembly simplification for virtual assembly process of complex product

机译：复杂产品的虚拟装配过程的动态装配简化

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摘要

Purpose - Virtual assembly process plays an important role in assembly design of complex product and is typically time- and resource-intensive. This paper aims to investigate a dynamic assembly simplification approach in order to demonstrate and interact with virtual assembly process of complex product in real time. Design/methodology/approach - The proposed approach regards the virtual assembly process of complex product as an incremental growth process of dynamic assembly. During the growth process, the current-assembled-state assembly model is simplified with appearance preserved by detecting and removing its invisible features, and the to-be-assembled components are simplified with assembly features preserved using conjugated subgraphs matching method based on an improved subgraph isomorphism algorithm. Findings - The dynamic assembly simplification approach is applied successfully to reduce the complexity of computer aided design models during the virtual assembly process and it is proved by several cases. Originality/value - A new assembly features definition is proposed based on the notion of "conjugation" to assist the assembly features recognition, which is a main step of the dynamic assembly simplification and has been translated into conjugated subgraphs matching problem. And an improved subgraph isomorphism algorithm is presented to address this problem.
机译：目的-虚拟装配过程在复杂产品的装配设计中起着重要作用，并且通常是时间和资源密集的。本文旨在研究一种动态装配简化方法，以实时演示复杂产品的虚拟装配过程并与之交互。设计/方法/方法-提出的方法将复杂产品的虚拟组装过程视为动态组装的增量增长过程。在增长过程中，通过检测和消除其不可见特征来简化当前组装状态的装配模型并保留其外观，并使用基于改进子图的共轭子图匹配方法通过保留其装配特征来简化待装配部件。同构算法。研究结果-动态装配简化方法已成功应用于降低虚拟装配过程中计算机辅助设计模型的复杂性，并已通过若干案例证明。独创性/价值-基于“共轭”概念提出了一种新的装配特征定义，以辅助装配特征识别，这是动态装配简化的主要步骤，并已转化为共轭子图匹配问题。提出了一种改进的子图同构算法。

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  • 来源
    《Assembly Automation》 |2014年第1期|1-15|共15页
  • 作者

    Hong Xiao; Yuan Li; Jian-Feng Yu; Hut Cheng;

  • 作者单位

    School of Mechatronics, Northwestern Polytechnical University, Xi'an, China;

    Ministry of Education Key Lab of Contemporary Design and Integrated Manufacturing Technology,Northwestern Polytechnical University, Xi'an, China;

    Institute of Mechatronics, Northwestern Polytechnical University, Xi'an, China;

    School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Assembly; Assembly features; Dynamic assembly; Feature recognition; Model simplification; Subgraph isomorphism;

    机译：部件;组装特征;动态组装;特征识别;简化模型;子图同构;

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