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DAI Shijie, ZHANG Yi, WANG Zhiping, XING Zhiwei. Trajectory planning of welded repair for aero-engine blades based on NURBS curve[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2015, 36(1): 23-26.
Citation: DAI Shijie, ZHANG Yi, WANG Zhiping, XING Zhiwei. Trajectory planning of welded repair for aero-engine blades based on NURBS curve[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2015, 36(1): 23-26.
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Trajectory planning of welded repair for aero-engine blades based on NURBS curve

  • 1.

    School of Mechanical Engineering, Hebei University of Technology, Tianjin 300131, China

  • 2.

    Automation College of Aviation, Civil Aviation University of China, Tianjin 300300, China

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  • Received Date: May 07, 2014
    Graphical Abstract
    • Abstract
  • As the complex shape of blades and the high requirement for welding repair of blades, NURBS(non-uniform rational B-spline) is adopted for trajectory planning. The section curves of blades is composed of leading edge, trailing edge, basin side and vacuum side. In order to get an unified expression and simplify the interpolation process, the order of the expression of leading edge and trailing edge must be increased. Then curve interpolation is carried out based on NURBS. Based on chord error, normal acceleration and programmed feed rate, adaptive control of the feed rate is achieved. This paper proposes a segmented look-ahead algorithm to improve the efficiency. Finally, a simulation is given to verify the feasibility and accuracy of this algorithm.
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    • References (10)
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