Advanced ultrasonic testing of complex shaped composite structures

Dolmatov, D. O.; Zhvyrblya, V; Filippov, German A.; Salchak, Yana; Sedanova, E. P.

doi:10.1088/1757-899x/135/1/012010

Cited by 8 publications

(4 citation statements)

References 2 publications

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“…In our earlier work we considered the application of six DOF robotic manipulator for the ultrasonic testing of carbon fiber composites using the pulse-echo ultrasonic testing technique and focused transducer. The obtained precise and accurate imagery of the artificial flaws in the specimen demonstrates the working capacity of the developed testing system prototype (Dolmatov et al, 2016).…”

Section: Introductionmentioning

confidence: 66%

The imaging algorithm for the ultrasonic testing of metal castings by the application of automated testing systems based on a six degree of freedom robotic manipulators

Dolmatov,

Zhvyrblya,

Sednev�

et al. 2018

cmms

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Complex-shaped surface represents one of the challenges in ultrasonic testing of metal castings. This conditions the growing interest in development and application of the automated testing system based on a six degree of freedom (DOF) robotic manipulators. This is due to their ability to provide ultrasonic scanning of the curved specimens with high speed. Higher reliability of the results can be obtained via implementation of the imaging algorithms based on Synthetic Aperture Focusing Technique (SAFT) in the named systems. This approach allows to obtain high-resolution imagery of the internal structure of controlled objects with reduced level of grain noise, the latter occurs due to the often encountered coarse-grained structure of metal castings.� In this paper, we introduce the novel imaging algorithm for the automated ultrasonic testing system based on a six degree of freedom robotic manipulator. The capabilities of the algorithm were verified by the application of computer simulations in CIVA 2016 software and also via the in situ experiments. In all the cases analyzed the results revealed that the imaging algorithm allows to make precise imagery of the internal structure of the specimens with different curvature. The obtained research results confirmed the suggested algorithm effectiveness, thus making it acceptable for prospective industrial applications.

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Section: Introductionmentioning

confidence: 66%

The imaging algorithm for the ultrasonic testing of metal castings by the application of automated testing systems based on a six degree of freedom robotic manipulators

Dolmatov,

Zhvyrblya,

Sednev�

et al. 2018

cmms

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“…However, the calibration of these systems is quite challenging. In our previous research we suggest a novel approach of noncontact calibration that can be implemented for this purpose [7,8].…”

Section: International Forum For Young Scientists "Space Engineering"mentioning

confidence: 99%

Frequency-domain imaging algorithm for ultrasonic testing by application of matrix phased arrays

Dolmatov

Salchak

Pinchuk³

2017

MATEC Web Conf.

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Abstract. Constantly increasing demand for high-performance materials and systems in aerospace industry requires advanced methods of nondestructive testing. One of the most promising methods is ultrasonic imaging by using matrix phased arrays. This technique allows to create three-dimensional ultrasonic imaging with high lateral resolution. Further progress in matrix phased array ultrasonic testing is determined by the development of fast imaging algorithms. In this article imaging algorithm based on frequency domain calculations is proposed. This approach is computationally efficient in comparison with time domain algorithms. Performance of the proposed algorithm was tested via computer simulations for planar specimen with flat bottom holes.

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“…Despite the existing robotic ultrasonic testing systems [ 1 , 2 , 3 , 4 ], tool path planning [ 5 , 6 , 7 , 8 , 9 ], data acquisition [ 10 , 11 ], and testing results presentation [ 12 , 13 ] are actual problems in the research and development of such equipment. Furthermore, with the application of robotic testing systems, the task of high-resolution results acquisition can be solved by the application of the focused transducers [ 14 , 15 ] or phased arrays [ 16 , 17 ]. The advantages of phased arrays over the single-element transducers are conditioned by their perfect flexibility and good imaging performance [ 18 ].…”

Section: Introductionmentioning

confidence: 99%

Application of Phase-Reversal Fresnel Zone Plates for High-Resolution Robotic Ultrasonic Non-Destructive Evaluation

Dolmatov

Tarrazó-Serrano

Filippov

et al. 2021

Sensors

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Nowadays the development of automated inspection systems based on six degrees of freedom robotic manipulators is a highly relevant topic in ultrasonic non-destructive testing. One of the issues associated with such development is the problem of acquiring high-resolution results. In this article, the application Phase-Reversal Fresnel Zone Plates is considered for solving this problem. Such acoustic lenses can solve the task of high-resolution results acquisition by using a single unfocused transducer. Furthermore, Phase-Reversal Fresnel Zone Plates can provide the desired focusing depth with the fixed thickness of the coupling layer. It is important in the case of application of devices which provide localized coupling. In this paper a proper design of Phase-Reversal Fresnel Zone Plate was determined according to the conditions of planned experiments. Its efficiency was verified via the Finite Element Method modeling. In all performed experiments the relative error of flaws size estimation did not exceed 6% whereas the signal-to-noise ratio was not lower than 17.1 dB. Thus, experimental results demonstrate that the application of Phase-Reversal Fresnel Zone Plates allowed to obtain results with high lateral resolution and signal-to-noise ratio. These results demonstrate the reasonability of the development of devices that provide localized coupling and use Phase-Reversal Fresnel Zone Plates.

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Advanced ultrasonic testing of complex shaped composite structures

Cited by 8 publications

References 2 publications

The imaging algorithm for the ultrasonic testing of metal castings by the application of automated testing systems based on a six degree of freedom robotic manipulators

The imaging algorithm for the ultrasonic testing of metal castings by the application of automated testing systems based on a six degree of freedom robotic manipulators

Frequency-domain imaging algorithm for ultrasonic testing by application of matrix phased arrays

Application of Phase-Reversal Fresnel Zone Plates for High-Resolution Robotic Ultrasonic Non-Destructive Evaluation

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