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作者:

Chen, Honglei (Chen, Honglei.) | Liu, Zenghua (Liu, Zenghua.) (学者:刘增华) | Gong, Yu (Gong, Yu.) | Wu, Bin (Wu, Bin.) | He, Cunfu (He, Cunfu.) (学者:何存富)

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SCIE

摘要:

Intelligent defect location algorithms based on the times-of-flight (ToFs) of Lamb waves are attractive for nondestructive testing (NDT) and structural health monitoring (SHM) of structures with large geometric sizes. Unlike the classical imaging algorithm based on projecting the amplitude information of scattering signals into a discrete spatial grid on the structure via their propagation characteristics, intelligent defect location algorithms are more efficient in specific applications. In our previous work, an intelligent algorithm for the location of defects in plates was proposed by considering the statistical, diversity, and fuzzy characteristics of the classical defect location algorithm. This approach can realize the efficient location of different defects under a suitable parameter selection. However, interfering components remain in the results, which decreases the detection resolution. Because the measurement uncertainty is directly related to the time, an optimized intelligent location algorithm is provided for the efficient defect location with Lamb waves and a sparse transducer array in this study. The defect position is identified with high resolution by analyzing the distribution of individuals. Several specific data and a fuzzy control parameter are introduced to the proposed algorithm. The K-means algorithm was adopted to realize the adaptive updating of individuals. The influence of parameter values on the detection results was analyzed. A combined analysis of the individuals was provided to ensure the detection robustness by eliminating the influence of fuzzy control parameters on the detection. Compared with the elliptic imaging algorithm, the intelligent defect location algorithm has higher location resolution and executes approximately 65 times faster.

关键词:

Approximation algorithms Clustering algorithms Evolutionary strategy (ES) Fuzzy control Imaging intelligent detection K-means algorithm Lamb waves Scattering sparse array Trajectory Transducers

作者机构:

  • [ 1 ] [Chen, Honglei]Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China
  • [ 2 ] [Liu, Zenghua]Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China
  • [ 3 ] [Gong, Yu]Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China
  • [ 4 ] [Wu, Bin]Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China
  • [ 5 ] [He, Cunfu]Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China
  • [ 6 ] [Chen, Honglei]Beijing Univ Technol, Beijing Engn Res Ctr Precis Measurement Technol &, Beijing 100124, Peoples R China
  • [ 7 ] [Liu, Zenghua]Beijing Univ Technol, Beijing Engn Res Ctr Precis Measurement Technol &, Beijing 100124, Peoples R China
  • [ 8 ] [Gong, Yu]Beijing Univ Technol, Beijing Engn Res Ctr Precis Measurement Technol &, Beijing 100124, Peoples R China
  • [ 9 ] [Wu, Bin]Beijing Univ Technol, Beijing Engn Res Ctr Precis Measurement Technol &, Beijing 100124, Peoples R China
  • [ 10 ] [He, Cunfu]Beijing Univ Technol, Beijing Engn Res Ctr Precis Measurement Technol &, Beijing 100124, Peoples R China

通讯作者信息:

  • 刘增华

    [Liu, Zenghua]Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China

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来源 :

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL

ISSN: 0885-3010

年份: 2021

期: 6

卷: 68

页码: 2277-2293

3 . 6 0 0

JCR@2022

ESI学科: ENGINEERING;

ESI高被引阀值:9

被引次数:

WoS核心集被引频次: 18

SCOPUS被引频次: 16

ESI高被引论文在榜: 0 展开所有

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