Ultrasonic full-matrix imaging of curved-surface components

Ji, Kaipeng; Zhao, Peng; Zhuo, Chaojie; Chen, Jian; Wang, Xianghong; Gao, Shiquan; Fu, Jianzhong

doi:10.1016/j.ymssp.2022.109522

Cited by 13 publications

(7 citation statements)

References 41 publications

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“…Additionally, a static time gate cannot deal with samples having a curved surface or samples which are tilted with respect to the scan axes [29]. In the case of composite parts, a peel-ply cloth is often used during the manufacturing process resulting in a corrugated surface texture [30].…”

Section: Time Domainmentioning

confidence: 99%

Ultrasonic imaging of damage in plates in spectral ripple frequency domain

Yang

Kersemans

2023

Mechanical Systems and Signal Processing

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Section: Time Domainmentioning

confidence: 99%

Ultrasonic imaging of damage in plates in spectral ripple frequency domain

Yang

Kersemans

2023

Mechanical Systems and Signal Processing

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“…In this paper, we address the 3D ultrasonic imaging of a pipeline using the reverse-time migration (RTM) technique, which has received much attention in the field of geophysics [35][36][37][38][39]. In recent years, RTM methods, originating from seismic imaging, have gained popularity in ultrasonic nondestructive testing applications [40][41][42][43]. The RTM method is a pre-stack imaging technique based on full-wave extrapolation.…”

Section: Introductionmentioning

confidence: 99%

“…In contrast to ray-based methods, RTM includes the effects of multiple scattering and mode conversions, as well as multiple wave reflections from the defect's lower side [33]. This allows one to gain more information, enabling the imaging of vertical interfaces and boundaries and providing higher quality images of interior defects [41,42]. However, most RTM studies on submarine pipelines are conducted using Cartesian coordinates [41,44], whereas, in any realistic case, the pipeline has an irregular cavity shape.…”

Section: Introductionmentioning

confidence: 99%

Three-Dimensional Ultrasonic Reverse-Time Migration Imaging of Submarine Pipeline Nondestructive Testing in Cylindrical Coordinates

Peng,

Cheng,

She

et al. 2023

JMSE

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Submarine pipelines are a safe and energy-efficient mode of gas transport. However, due to the complex manufacturing process and harsh operating environment, submarine pipelines are subject to fatigue cracks under long-term cyclic loading. A comprehensive and high-precision characterization strategy for submarine pipelines can effectively prevent potential safety hazards and have significant economic and social repercussions. As a matter of fact, pipeline defects cannot be reliably detected with current traditional 2D methods. On the other hand, in ultrasonic testing, cylindrical geometry increases the complexity of the 3D wave field in the submarine pipeline space and significantly influences the accuracy of the detection results. In this paper, we put forward a novel method for 3D ultrasonic image testing that is suitable for cylindrical coordinates. In order to accurately simulate the ultrasonic signal received from pipelines, we generalize the 3D staggered-grid finite-difference method from Cartesian coordinates to cylindrical ones and simulate the full wave field in the 3D pipeline space. Then, signal processing is performed on the ultrasound simulation records, and 3D reverse-time migration imaging of submarine pipeline defects can be effectively achieved using the reverse-time migration method and cross-correlation imaging conditions. The results obtained from simulations and real field data show that the proposed method provides high-quality 3D imaging of defects in pipelines, taking into account multiple scattering and mode conversion information at the bottom of the defects.

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“…The most economical and convenient method is to immerse the workpiece and a flat probe in water and use an imaging algorithm adapted to the curved surface for imaging [ 11 , 12 , 13 ]. Among the existing FMC imaging methods, frequency domain reverse time migration (FD-RTM) is a new technology with the smallest artifacts and the highest resolution [ 14 ], and it is the imaging technology used in this article.…”

Section: Introductionmentioning

confidence: 99%

Adaptive Ultrasonic Full Matrix Capture Process for the Global Imaging of Complex Components with Curved Surfaces

Miao,

Liu,

Huang

et al. 2023

Sensors

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This work proposes a new global FD-RTM method to solve the problem of ultrasonic inspection of parts with complex geometric shapes. With this method, the frequency domain reverse time migration (FD-RTM) algorithm is used to adapt to the complex refraction of ultrasonic waves by the surface, while an interface solution algorithm based on tangent fitting is used to solve the interface position with high precision through the full matrix reception data. Based on high-precision interface information, a hybrid extrapolation algorithm and a situation-specific probe movement strategy are used to enable the probe to find the next sampling point according to the direction of the workpiece surface, allowing complex surface topography features to be identified without relying on the workpiece CAD drawing. This makes it possible to achieve the automated inspection of workpieces. To verify the proposed method’s effectiveness, an aluminum alloy model with side-drilled holes (SDH) is used. The geometry of the model consists of multiple convex and concave surfaces. By comparing the local FD-RTM imaging with images synthesized using the entire scan path, it is shown that gFD-RTM improved the imaging performance. Compared with FD-RTM, the average signal-to-noise ratio of gFD-RTM was increased by 20%, and the array performance index (API) was reduced by 70%, indicating effective detection coverage.

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Ultrasonic full-matrix imaging of curved-surface components

Cited by 13 publications

References 41 publications

Ultrasonic imaging of damage in plates in spectral ripple frequency domain

Ultrasonic imaging of damage in plates in spectral ripple frequency domain

Three-Dimensional Ultrasonic Reverse-Time Migration Imaging of Submarine Pipeline Nondestructive Testing in Cylindrical Coordinates

Adaptive Ultrasonic Full Matrix Capture Process for the Global Imaging of Complex Components with Curved Surfaces

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