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Numerical study on predicting and correcting assembly deformation of a large fuselage panel during digital assembly

机译：数字化装配过程中大型机身面板装配变形预测与修正的数值研究

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摘要

Purpose - The deformation of a large fuselage panel is unavoidable due to its weak-stiffness and low-rigidity. Sometimes, the assembly accuracy of the panel is out of tolerance. The purpose of this paper is to propose a method to predict and correct the assembly deformation of a large fuselage panel during digital assembly by using a finite element (FE) analysis and partial least squares regression (PLSR) method. Design/methodology/approach - A FE model is proposed to optimize the layout of load-transmitting devices to reduce panel deformation after the process of hoisting and supporting. Furthermore, another FE model is established to investigate the deformation behavior of the panel. By orthogonal simulations, the position error data of measurement points representing the precision of the panel are obtained. Then, a mathematical model of the relationship between the position errors of measurement points on the panel and the displacements of numerical control positioners is developed based on the PLSR method. Findings - The case study shows that the model has a high level of computing accuracy and that the proposed method is an efficient way to correct the panel deformation in digital assembly. Originality/value - The results of this study will enhance the understanding of the deformation behavior of a panel in aircraft digital assembly and help to improve the assembly precision systematically and efficiently.
机译：目的-大型机身面板由于其较弱的刚度和低刚性而不可避免地会变形。有时，面板的组装精度超出公差范围。本文的目的是提出一种使用有限元（FE）分析和偏最小二乘回归（PLSR）方法预测和校正大型机身面板在数字组装过程中组装变形的方法。设计/方法/方法-提出了有限元模型来优化载荷传递设备的布局，以减少在起吊和支撑过程后面板变形。此外，建立了另一个有限元模型来研究面板的变形行为。通过正交模拟，获得了代表面板精度的测量点的位置误差数据。然后，基于PLSR方法建立了面板上测量点位置误差与数控定位器位移之间关系的数学模型。结果-案例研究表明，该模型具有较高的计算精度，并且所提出的方法是纠正数字装配中面板变形的有效方法。原创性/价值-这项研究的结果将增进对飞机数字组装中面板变形行为的了解，并有助于系统有效地提高组装精度。

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  • 来源
    《Assembly Automation》 |2014年第2期|204-214|共11页
  • 作者

    Yunbo Bi; Weimiao Yan; Yinglin Ke;

  • 作者单位

    Department of Mechanical Engineering, Zhejiang University, Hangzhou, China;

    Department of Mechanical Engineering, Zhejiang University, Hangzhou, China;

    Department of Mechanical Engineering, Zhejiang University, Hangzhou, 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

    Simulation; Assembly; Flexible assembly;

    机译：模拟;部件;组装灵活;

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