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Laser & Optoelectronics Progress, Volume. 56, Issue 18, 180301(2019)

Minor Damage Location Method for Aircraft Skins Based on Marked Honeycomb Model

Zhijing Yu1, Xin Li1, Yanling Li1, Zechuan Li2, and Jingchang Zhuge1、*
Author Affiliations
  • 1 Electronic Information and Automation College, Civil Aviation University of China, Tianjin 300300, China
  • 2 Aeronautical Engineering College, Civil Aviation University of China, Tianjin 300300, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (14)
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    References (16)
    Cited By (1)
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    Figures & Tables(14)
    Basic point transfer model of honeycomb model

    Fig. 1. Basic point transfer model of honeycomb model

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    RRT reflective marks

    Fig. 2. RRT reflective marks

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    Pixel edge of feature control point

    Fig. 3. Pixel edge of feature control point

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    Radial grayscale gradient

    Fig. 4. Radial grayscale gradient

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    Subpixel edge point

    Fig. 5. Subpixel edge point

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    Diagram of projection of circular inscribed hexagon

    Fig. 6. Diagram of projection of circular inscribed hexagon

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    Cross ratio invariance principle in hexagon

    Fig. 7. Cross ratio invariance principle in hexagon

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    Diagram of experimental device

    Fig. 8. Diagram of experimental device

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    Schematic of experimental process

    Fig. 9. Schematic of experimental process

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    Control point layout model of damaged skin

    Fig. 10. Control point layout model of damaged skin

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    Damage to surface of aircraft skin. (a) Normal skin; (b) crack; (c) corrosion; (d) strike; (e) scratch

    Fig. 11. Damage to surface of aircraft skin. (a) Normal skin; (b) crack; (c) corrosion; (d) strike; (e) scratch

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    3×3 template images after adaptive median filtering. (a) Normal; (b) crack; (c) corrosion; (d) strike; (e) scratch

    Fig. 12. 3×3 template images after adaptive median filtering. (a) Normal; (b) crack; (c) corrosion; (d) strike; (e) scratch

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    Error values and time consumptions of three algorithms. (a) Error in image; (b) time consumption; (c) relative truth error

    Fig. 13. Error values and time consumptions of three algorithms. (a) Error in image; (b) time consumption; (c) relative truth error

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    • Table 1. Center coordinate results of four groups of control points under three different methodspixel

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      Table 1. Center coordinate results of four groups of control points under three different methodspixel

      Experimental groupPositioning methodData resultTheoretical optimal value
      1Honeycomb model location method(1157.38,1349.27)(1156.95,1348.94)(1157.73,1350.12)(1158.08,1349.23)(1157.64,1348.75)
      Method in Ref. [11](581.82,349.36)(582.24,350.03)(581.43,348.97)(581.12,348.62)(582.42,350.37)
      Method in Ref. [9](217.60,145.39)(216.92,144.88)(217.05,144.98)(217.83,145.64)(218.85,146.38)
      2Honeycomb model location method(597.60,344.36)(597.82,344.57)(598.05,343.98)(596.89,345.35)(597.64,344.25)
      Method in Ref. [11](1851.03,1247.87)(1851.37,1248.24)(1850.72,1247.48)(1851.65,1248.56)(1852.76,1241.28)
      Method in Ref. [9](654.78,864.63)(655.21,865.02)(655.68,865.43)(654.38,864.19)(665.68,875.13)
      3Honeycomb model location method(800.16,675.26)(799.89,675.03)(799.60,674.69)(801.75,675.57)(800.37,674.96)
      Method in Ref. [11](514.76,483.87)(515.09,484.23)(515.46,484.61)(515.78,484.97)(525.09,481.23)
      Method in Ref. [9](1264.53,1027.86)(1264.87,1028.22)(1265.33,1028.76)(1265.69,1029.14)(1267.74,1030.12)
      4Honeycomb model location method(1697.61,1144.36)(1698.10,1144.77)(1697.32,1145.16)(1696.95,1143.84)(1697.43,1144.27)
      Method in Ref. [11](1456.47,987.39)(1456.68,987.63)(1456.89,987.87)(1457.12,988.23)(1466.18,980.63)
      Method in Ref. [9](1733.64,1368.59)(1734.12,1368.93)(1734.44,1369.29)(1733.23,1368.27)(1745.22,1370.47)
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    Zhijing Yu, Xin Li, Yanling Li, Zechuan Li, Jingchang Zhuge. Minor Damage Location Method for Aircraft Skins Based on Marked Honeycomb Model[J]. Laser & Optoelectronics Progress, 2019, 56(18): 180301

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    Paper Information

    Category: COHERENCE OPTICS AND STATISTICAL OPTICS

    Received: Jan. 21, 2019

    Accepted: Apr. 9, 2019

    Published Online: Sep. 9, 2019

    The Author Email: Jingchang Zhuge (12315414@qq.com)

    DOI:10.3788/LOP56.180301

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology