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作者:

Liu, Zenghua (Liu, Zenghua.) (学者:刘增华) | Zhang, Tingting (Zhang, Tingting.) | Su, Ruixiang (Su, Ruixiang.) | Chen, Honglei (Chen, Honglei.) | He, Cunfu (He, Cunfu.) (学者:何存富) | Wu, Bin (Wu, Bin.)

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摘要:

A cross-shaped array which was composed of piezoelectric sensors was used for the excitation and reception of Lamb wave signals. A two-dimensional multiple signal classification (2D-MUSIC) method was proposed to locate and detect defects in aluminum plates. Firstly, the appropriate excitation frequency was selected for the generation of a single mode signal to avoid the influences of multi-mode and reduce the dispersion of Lamb waves. Then, received signals were segmented by 2D-MUSIC algorithm. Finally, reflected signals and 2D steering vectors were combined to locate the defects in the aluminum plate. The results show that the proposed 2D-MUSIC algorithm is more accurate than traditional multiple signal classification algorithm for defecting locations in aluminum plates. © 2020, China Mechanical Engineering Magazine Office. All right reserved.

关键词:

Aluminum Aluminum plating Computer music Defects Surface waves Ultrasonic waves

作者机构:

  • [ 1 ] [Liu, Zenghua]Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing; 100124, China
  • [ 2 ] [Liu, Zenghua]Beijing Engineering Research Center of Precision Measurement Technology and Instruments, Beijing University of Technology, Beijing; 100124, China
  • [ 3 ] [Zhang, Tingting]Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing; 100124, China
  • [ 4 ] [Zhang, Tingting]Beijing Engineering Research Center of Precision Measurement Technology and Instruments, Beijing University of Technology, Beijing; 100124, China
  • [ 5 ] [Su, Ruixiang]Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing; 100124, China
  • [ 6 ] [Su, Ruixiang]Beijing Engineering Research Center of Precision Measurement Technology and Instruments, Beijing University of Technology, Beijing; 100124, China
  • [ 7 ] [Chen, Honglei]Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing; 100124, China
  • [ 8 ] [Chen, Honglei]Beijing Engineering Research Center of Precision Measurement Technology and Instruments, Beijing University of Technology, Beijing; 100124, China
  • [ 9 ] [He, Cunfu]Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing; 100124, China
  • [ 10 ] [He, Cunfu]Beijing Engineering Research Center of Precision Measurement Technology and Instruments, Beijing University of Technology, Beijing; 100124, China
  • [ 11 ] [Wu, Bin]Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing; 100124, China
  • [ 12 ] [Wu, Bin]Beijing Engineering Research Center of Precision Measurement Technology and Instruments, Beijing University of Technology, Beijing; 100124, China

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来源 :

China Mechanical Engineering

ISSN: 1004-132X

年份: 2020

期: 17

卷: 31

页码: 2038-2044

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WoS核心集被引频次: 0

SCOPUS被引频次: 1

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