Crack Detection of Threaded Steel Rods Based on Ultrasonic Guided Waves

Peng, Kunhong; Zhang, Yi; Xu, Xiaomei; Han, Jinsong; Luo, Yaozhi

doi:10.3390/s22186885

Cited by 2 publications

(2 citation statements)

References 41 publications

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“…Ultrasonic guided waves are widely used in the health monitoring of pipelines, plates, rods and other structures due to their long propagation distance, fast propagation speed and small attenuation [1][2][3][4][5]. When the ultrasonic wave propagates in the structure, the boundary will cause wave reflection and mode conversion [6].…”

Section: Introductionmentioning

confidence: 99%

Multi-Order Mode Excitation and Separation of Ultrasonic Guided Waves in Rod Structures Using 2D-FFT

Li,

Zhang,

Cheng

et al. 2023

Sensors

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The ultrasonic guided wave technique is extensively used for nondestructive structural testing, and one of the key steps is to extract a single mode with certain purity from multi-order mixed modes. In this paper, the propagation of ultrasonic guided waves in the cylindrical rod is simulated first; the appropriate broadband excitation signal is selected to excite the multi-order modes in a specific frequency range; and the time–space signal containing multi-order modes is converted to the frequency-wavenumber domain signal by two-dimensional Fourier transform. In the frequency-wavenumber domain, the frequency-wavenumber ridge is extracted from the multi-mode frequency-wavenumber domain based on the dynamic programming method, and then the time-domain signal corresponding to a single mode can be reconstructed. By comparing the excited multi-order mode and the separated single mode with the theoretical results, it is observed that the two results are consistent. Thus, the employed mode-excitation method can accurately excite the multi-order modes in rod structures. Furthermore, the proposed method enables the separation of a single-mode wave with high purity, providing a foundation for future utilization of isolated modes.

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Section: Introductionmentioning

confidence: 99%

Multi-Order Mode Excitation and Separation of Ultrasonic Guided Waves in Rod Structures Using 2D-FFT

Li,

Zhang,

Cheng

et al. 2023

Sensors

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“…During the manufacturing process, various treatment processes are performed on the surfaces of the piston rod and steering rack, and defects are confirmed by visual inspection via sampling and simple tensile tests [1,2]. However, small cracks, called microcracks or microstructural defects, can impair the mechanical strength and integrity of a structure [3]. The piston rod and steering rack are manufactured by forging in one piece or by cutting seamless pipes or round rods to improve fuel efficiency with light weight and hollowness [4].…”

Section: Introductionmentioning

confidence: 99%

A Study on the Application of Machine and Deep Learning Using the Impact Response Test to Detect Defects on the Piston Rod and Steering Rack of Automobiles

Yoon

Woo

2022

Sensors

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The main parts of automobiles are the piston rod of the shock absorber and the steering rack of the steering gear, and their quality control is critical in the product process. In the process line, these products are normally inspected through visual inspection, sampling, and simple tensile tests; however, if there is a problem or abnormality, it is difficult to identify the type and location of the defect. Usually, these defects are likely to cause surface cracks during processing, which in turn accelerate the deterioration of the shock absorber and steering, causing serious problems in automobiles. As a result, the purpose of this study was to present, among non-destructive methods, a shock response test method and an analysis method that can efficiently and accurately determine the defects of the piston rod and steering rack. A test method and excitation frequency range that can measure major changes according to the location and degree of defects were proposed. A defect discrimination model was constructed using machine and deep learning through feature derivation in the time and frequency domains for the collected data. The analysis revealed that it was possible to effectively distinguish the characteristics according to the location as well as the presence or absence of defects in the frequency domain rather than the time domain. The results indicate that it will be possible to quickly and accurately check the presence or absence of defects in the shock absorber and steering in the automobile manufacturing process line in the future. It is expected that this will play an important role as a key factor in building a smart factory.

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Crack Detection of Threaded Steel Rods Based on Ultrasonic Guided Waves

Cited by 2 publications

References 41 publications

Multi-Order Mode Excitation and Separation of Ultrasonic Guided Waves in Rod Structures Using 2D-FFT

Multi-Order Mode Excitation and Separation of Ultrasonic Guided Waves in Rod Structures Using 2D-FFT

A Study on the Application of Machine and Deep Learning Using the Impact Response Test to Detect Defects on the Piston Rod and Steering Rack of Automobiles

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