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Comprehensive identification of aircraft coordination feature based on complete importance modeling and its engineering application

机译：基于完全重要性模型的飞机协调特征综合识别及其工程应用

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摘要

Purpose - Coordination feature (CF) is the information carrier in dimension and shape transfer process in aircraft manufacturing. The change of its geometric size, shape, position or other attributes would affect the consistency of accumulated errors between two or more assemblies. To identify these "key characteristics" that have a close relationship with the assembly precision, a comprehensive method was developed under digital manufacturing environment, which was based on importance calculation. The multi-hierarchy and multi-station assembly process of aircraft products were also taken into consideration. Design/methodology/approach - First, the interaction and evaluation relationship between components at different manufacturing stages was decomposed with a hierarchical net. Second, to meet coordination accuracy requirements, with the integrated application of Taguchi quality loss function, accuracy principal and error correction coefficient H, the quality loss between target features and candidate features at adjacent assembly hierarchies were calculated, which was based on their precision variation. Third, the influence degree and affected degree of the features were calculated with DEMATEL (decision-making trial and evaluation laboratory) method, and the concepts of centrality degree index and cause degree index were proposed for calculating the complete importance degree to eventually identify the CFs. Findings - Based on the proposed methodology, CFs, affecting the skin profile and the flush coordination accuracy, were successfully identified at different assembly hierarchies to a certain type of wing flap component Originality/value - Benefit results for the engineering application showed that the deviation of skin profile was more accurate than before, and the tolerance was also closer to the centerline of required assembly precision range. Moreover, the stability in the assembly process was increased by 26.9 per cent, which could bring a higher assembly quality and an enhancement on aircraft's flight performance.
机译：目的-协调特征（CF）是飞机制造中尺寸和形状传递过程中的信息载体。其几何尺寸，形状，位置或其他属性的变化将影响两个或多个组件之间累积的误差的一致性。为了识别与装配精度密切相关的这些“关键特性”，在数字制造环境下开发了一种基于重要性计算的综合方法。还考虑了飞机产品的多层次和多站点组装过程。设计/方法/方法-首先，使用分层网络分解不同制造阶段组件之间的交互和评估关系。其次，为了满足协调精度要求，结合Taguchi质量损失函数，精度原理和纠错系数H，基于它们的精度变化计算目标特征和候选特征在相邻装配层次结构之间的质量损失。第三，采用DEMATEL（决策试验与评估实验室）方法计算特征的影响程度和影响程度，并提出集中度指标和原因度指标的概念，以计算出完整的重要度，最终确定CF 。研究结果-基于所提出的方法，影响皮肤轮廓和齐平配合精度的CFs在不同的装配层次上成功地确定了某种类型的机翼襟翼组件的独创性/价值-工程应用的收益结果表明，皮肤轮廓比以前更精确，公差也更接近所需的组装精度范围的中心线。此外，组装过程中的稳定性提高了26.9％，这可以带来更高的组装质量并提高飞机的飞行性能。

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  • 来源
    《Assembly Automation》 |2018年第4期|398-411|共14页
  • 作者

    Feiyan Guo; Fang Zou; Jian Hua Liu; Bo Zhao; Zhongqi Wang;

  • 作者单位

    AVIC Manufacturing Technology Institute, Beijing, China;

    AVIC Manufacturing Technology Institute, Beijing, China;

    School of Mechanical Engineering, Beijing Institute of Technology, Beijing, China;

    Chang'an University, Xi'an, China;

    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; Aerospace; Design for assembly;

    机译：部件;航天;组装设计;

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