Research and Review Journal of Nondestructive Testing最新文献_第10页

Full Waveform Inversion for NDT using ultrasonic linear arrays 超声线性阵列无损检测全波形反演

Research and Review Journal of Nondestructive Testing Pub Date : 2023-08-01 DOI: 10.58286/28117

Daniel Rossato, F. D. Gutierrez, G. A. Guarneri, T. Passarin, G. Pires, D. Pipa

{"title":"Full Waveform Inversion for NDT using ultrasonic linear arrays","authors":"Daniel Rossato, F. D. Gutierrez, G. A. Guarneri, T. Passarin, G. Pires, D. Pipa","doi":"10.58286/28117","DOIUrl":"https://doi.org/10.58286/28117","url":null,"abstract":"\u0000Ultrasonic (UT) imaging is a widespread technique for nondestructive testing (NDT).\u0000\u0000The state-of-the-art UT image reconstruction algorithms are based on delay-and-sum\u0000\u0000(DAS) operations, which assume constant acoustic velocity across the tested objects and\u0000\u0000also neglects nonlinear effects such as diffractions and multiple reflections. These assumptions limit the reconstruction capabilities of DAS-based algorithms, especially for\u0000\u0000complex objects composed by several materials. In seismology, Full Waveform Inversion\u0000\u0000(FWI) methods have been used to obtain subsurface properties based on scattered and\u0000\u0000transmitted sound waves - which is a very similar problem to ultrasonic imaging in NDT\u0000\u0000- using the full wave information, showing promising results. In this paper, we present\u0000\u0000the application of FWI in NDT using simulated data representing acquisitions with a\u0000\u0000common linear array transducer. We review the theoretical formulation of FWI and discuss some difficulties that arise when it is applied to NDT. Image reconstruction is performed using both a state-of-the-art DAS algorithm, namely the Total Focusing Method,\u0000\u0000and FWI. The implementation targets a GPU platform, using the CUDA API. This leverages the highly parallelizable nature of the simulations and the FWI algorithm. The\u0000\u0000obtained results show that FWI can show more internal structures than TFM, with less\u0000\u0000information about the specimen. To foster further development, all source codes are\u0000\u0000provided.\u0000","PeriodicalId":383798,"journal":{"name":"Research and Review Journal of Nondestructive Testing","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125373546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development and adaptation of Ultrasonic system for Windblades inspection using Unmanned Aerial Vehicles 无人机风叶片超声检测系统的研制与改造

Research and Review Journal of Nondestructive Testing Pub Date : 2023-08-01 DOI: 10.58286/28109

Celia Vilches, S. González, M. A. Trujillo, F. Lasagni, A. Viguria, A. Ollero

{"title":"Development and adaptation of Ultrasonic system for Windblades inspection using Unmanned Aerial Vehicles","authors":"Celia Vilches, S. González, M. A. Trujillo, F. Lasagni, A. Viguria, A. Ollero","doi":"10.58286/28109","DOIUrl":"https://doi.org/10.58286/28109","url":null,"abstract":"\u0000Europe is facing one of the most challenging decades with the decarbonization of the energy generation. The increase in the use of energy from renewable sources is essential for the climate and energy global goals. In this way, the optimization of maintenance and repair works of the involved production systems is necessary to reduce costs and time of operation, especially in wind farms, where accessibility is reduced and usually dangerous. For this reason, novel technologies and applications are being investigated in the O&M field like the use of unmanned aerial vehicles (UAVs) for structural assessment of wind blade components through non-destructive technologies (NDT). This is the main goal of DURABLE project, where this investigation is framed. This work is focused on the comparative analysis of different ultrasonic technologies and the development of a protocol for the inspections of wind blades for its application by means of aerial vehicles. The inspections tests have been conducted on samples at laboratory level as a previous work for the post implementation of this technology with drones in field. Diverse UT transducers with 4.0 to 5.0 MHz emission frequencies as well as single element and phased array probes have been used to determine the best configuration for the inspection of each material and thickness of wind blades. To characterize the detectability, artificial defects (impacts and flat-bottomed drills) have been introduced in the test samples to analyze the detectability with manual handled UT inspections. Finally, the most suitable ultrasonic probe was selected, adapted and integrated in an end effector for its implementation in a UAV. The applicability of the inspection by using aerial vehicles has been tested in relevant environment (at laboratory) and in real windfarm.\u0000","PeriodicalId":383798,"journal":{"name":"Research and Review Journal of Nondestructive Testing","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124339917","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Automated Spot Weld Testing using a Smart Robotic System 使用智能机器人系统的自动点焊测试

Research and Review Journal of Nondestructive Testing Pub Date : 2023-08-01 DOI: 10.58286/28066

Y. Oberdoerfer, R. Maev, A. Denisov, Adam Turton, Eugene Valetsky

{"title":"Automated Spot Weld Testing using a Smart Robotic System","authors":"Y. Oberdoerfer, R. Maev, A. Denisov, Adam Turton, Eugene Valetsky","doi":"10.58286/28066","DOIUrl":"https://doi.org/10.58286/28066","url":null,"abstract":"\u0000Since spot welding is still the most important joining method in the automotive industry, manual ultrasound testing of spot welds on car bodies and parts is a well-known and widely used application in this industry segment. Current trends in process automation and optimization, as well as current social topics, have given rise to an increasing interest in automizing the previously manual ultrasound inspection of spot welds, especially over the last couple of years. The first step in achieving this goal seems obvious – to integrate a conventional ultrasound device and transducer with a robot. However, there are many steps in the manual inspection process that are performed by an operator and subsequently need to be automated in a process-safe manner: positioning the ultrasound transducer correctly on the surface, recording and automatically evaluating the ultrasound data, and communicating in a fail-safe manner over an industrial network are only some aspects for which a solution must be found. This presentation will discuss the requirements for an ultrasonic system for automized spot weld testing, as well as present an already implemented smart robotic system for this purpose, which allows for both out-of-line as well as inline testing in series production.\u0000","PeriodicalId":383798,"journal":{"name":"Research and Review Journal of Nondestructive Testing","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124968654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Phased Array Ultrasonic Testing for Inspection of LNG Storage Tank LNG储罐检测的相控阵超声检测

Research and Review Journal of Nondestructive Testing Pub Date : 2023-08-01 DOI: 10.58286/28159

S. Won, S. Lim, In-Sang Jeong, Haksung Lee

{"title":"Phased Array Ultrasonic Testing for Inspection of LNG Storage Tank","authors":"S. Won, S. Lim, In-Sang Jeong, Haksung Lee","doi":"10.58286/28159","DOIUrl":"https://doi.org/10.58286/28159","url":null,"abstract":"\u0000Liquefied natural gas (LNG) is liquefied at -162°C at atmospheric pressure and stored in\u0000\u0000the inner shell. Due to the transport and storage characteristics of such low temperature\u0000\u0000conditions, 9% high nickel steel, which shows excellent strength and toughness even at\u0000\u0000low temperatures, is used for the inner wall. On the other hand, the base material of the\u0000\u0000inner wall has a tempered martensite structure, whereas the weld metal has an Inconel- based austenite structure with high damping properties in acoustics. Also, the weld metal\u0000\u0000is composed of an anisotropic structure completely different from the base material. These\u0000\u0000are considered obstacles in non-destructive testing. We applied automated phased array\u0000\u0000ultrasonic testing(PAUT) as a replacement of radiographic testing in inspection of LNG\u0000\u0000storage tank. To obtain the reference value data, a reference specimen for each thickness\u0000\u0000was prepared, and an automatic scanning device was designed and manufactured. Also, a\u0000\u0000customized phased array(PA) probe was developed and applied. All parts are integrated\u0000\u0000and operated as one system, and the data is analyzed and stored through an operating\u0000\u0000program developed in-house. The current system has proven its performance through\u0000\u0000field application to a much-improved level in the existing scanning device, probe and\u0000\u0000application method. In conclusion, it was proved that our technology can be\u0000\u0000commercialized by showing excellent detection ability.\u0000","PeriodicalId":383798,"journal":{"name":"Research and Review Journal of Nondestructive Testing","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114542350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ten+ Years of Experience in Digitization of Cultural Heritage by Means of Industrial X-ray Computed Tomography: A Summary 利用工业x射线计算机断层扫描技术进行文化遗产数字化十余年的经验总结

Research and Review Journal of Nondestructive Testing Pub Date : 2023-08-01 DOI: 10.58286/28090

T. Fuchs, M. Boehnel, C. Kretzer, Nils Reims, Tomas Sauer, G. Scholz, Rebecca Wagner

{"title":"Ten+ Years of Experience in Digitization of Cultural Heritage by Means of Industrial X-ray Computed Tomography: A Summary","authors":"T. Fuchs, M. Boehnel, C. Kretzer, Nils Reims, Tomas Sauer, G. Scholz, Rebecca Wagner","doi":"10.58286/28090","DOIUrl":"https://doi.org/10.58286/28090","url":null,"abstract":"\u0000Digitization of irreplaceable objects of cultural significance is gaining permanently more importance as field of research [1-5]. At places, which keep collections of historical or archaeological character, a strong desire exists to create a digital twin of at least parts of those collections. The reasons therefore are manifold. In order to produce high-quality 3D volume data representing various objects, at the Fraunhofer X-ray Development Centre (EZRT), Fürth/Germany, up to 15 different Computed Tomography (CT) systems can be used, each with specific performance characteristics. There are two aspects, which have to be considered with each measurement: first, which materials are present in the historical object? Second, which is the purpose the measurement is made for? During the last 10 years, almost 200 objects of cultural heritage were digitized at the Fraunhofer EZRT. Historical objects include art works, relics, musical instruments, technological prototypes like a Messerschmitt Me 163 jet plane, archaeological findings such as hoards, Roman weaponry, fossilized skeletons, and many more. We will present the most interesting cases among these and draw a series of conclusions regarding the handling of the valuable objects, parametrization and realization of the measurement and – last but not least – post processing and data handling.\u0000","PeriodicalId":383798,"journal":{"name":"Research and Review Journal of Nondestructive Testing","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124200031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synchronism system for generating ultrasonic images of complex geometry pieces using industrial robots 利用工业机器人产生复杂几何件超声图像的同步系统

Research and Review Journal of Nondestructive Testing Pub Date : 2023-08-01 DOI: 10.58286/28178

Rodrigo Martín Navarro, Iñaki Gauna León, S. A. Secanellas, Montserrat Acebes Pascual, M. Parrilla, Héctor de Matías Jiménez, A. Ibáñez, Alberto Álvarez de Pablos, Óscar Martínez, Rafael Delgado de Molina, M. González Hernández, J. J. A. Velayos

{"title":"Synchronism system for generating ultrasonic images of complex geometry pieces using industrial robots","authors":"Rodrigo Martín Navarro, Iñaki Gauna León, S. A. Secanellas, Montserrat Acebes Pascual, M. Parrilla, Héctor de Matías Jiménez, A. Ibáñez, Alberto Álvarez de Pablos, Óscar Martínez, Rafael Delgado de Molina, M. González Hernández, J. J. A. Velayos","doi":"10.58286/28178","DOIUrl":"https://doi.org/10.58286/28178","url":null,"abstract":"\u0000This paper presents a synchronism system that has been designed to facilitate the generation of ultrasonic images of pieces with complex geometry through the use of industrial robots. Modern robotic manipulators and, more specifically, industrial robotic arms integrated with server computers, sensors and actuators have revolutionized the way automated non-destructive testing is performed. Currently there are commercial industrial robots that have the precision, speed and repetitiveness in their movements that make them suitable for use in numerous non-destructive testing inspections whose designs are carried out by small and medium sized specialized companies. Automatic ultrasonic inspection of complex parts remains one of the most difficult challenges according to the specific and increasingly exigent demands of the markets. The closed configuration of these complex robotic arms makes it difficult to maintain adequate synchronism between the movement of the robot and the acquisition of the data, making it difficult to generate ultrasonic images consistent with the geometry of the part. This is a serious problem in the inspection of aerospace components where high quality is necessary to assess the condition of the inspected component. In this paper, we present an autonomous independent external system that provides control signals to synchronize the ultrasound system with the robot trajectories without needing to access its position in real time. A methodology to obtain the timing pattern for a given part inspected with a given robotic system will also be presented here.\u0000","PeriodicalId":383798,"journal":{"name":"Research and Review Journal of Nondestructive Testing","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126286844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Flaw Detection in Wire and Arc Additive Manufacturing Using In-Situ Wide Frequency Bandwidth Acoustic Pressure 利用原位宽频带声压检测线材和电弧增材制造中的缺陷

Research and Review Journal of Nondestructive Testing Pub Date : 2023-08-01 DOI: 10.58286/28148

A. Ramalho, T. Santos, Ben Bevans, Z. Smoqi, Prahalada K. Rao, J. P. Oliveira

{"title":"Flaw Detection in Wire and Arc Additive Manufacturing Using In-Situ Wide Frequency Bandwidth Acoustic Pressure","authors":"A. Ramalho, T. Santos, Ben Bevans, Z. Smoqi, Prahalada K. Rao, J. P. Oliveira","doi":"10.58286/28148","DOIUrl":"https://doi.org/10.58286/28148","url":null,"abstract":"\u0000Wire and arc additive manufacturing (WAAM) is an additive manufacturing (AM) process that can produce large metallic components with low material waste and high production rates. However, WAAM’s high deposition rates require high heat input which can result in potential defects such as pores, cracks, lack of fusion or distortion. For practical implementation of the WAAM process in an industrial environment it is necessary to ensure defects-free production. However, the NDT inspection using traditional NDT techniques (ultrasound, eddy currents, x-ray, for example) is a very demanding task, especially during part production. Therefore, reliable online NDT inspection and monitoring techniques are needed for the industrial spread of WAAM. The objective of this work is to detect flaw formation on WAAM produced parts using in-situ acquired acoustic data with a frequency bandwidth from 10 to 1MHz. WAAM parts were processed with deliberately introduced contaminations while its acoustic signal was obtained to correlate different signal characteristics with defects. To identify flaw formation, two distinct types of microphones were employed to acquire data from the same deposition process. The processing of the signal consisted of applying time and frequency domain techniques, namely, Power Spectral Density and Short Time Fourier Transform. The acoustic signatures obtained allowed for the differentiation between flawed and flaw free signals and for the spatial location of the contaminations. The acoustic signal acquired also showed that the data acquired by conventional microphones is not enough to fully characterize the acoustic spectrum emitted by the WAAM process. This work demonstrates the potential of acoustic data and signal processing in the online inspection of WAAM produced parts.\u0000","PeriodicalId":383798,"journal":{"name":"Research and Review Journal of Nondestructive Testing","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134026522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Online Grain Size Measurement by Laser Ultrasonics in a Hot Rolling Mill 热轧机激光超声粒度在线测量

Research and Review Journal of Nondestructive Testing Pub Date : 2023-08-01 DOI: 10.58286/28204

G. Cousin, P. Meilland, F. Damoiselet, N. Legrand, Nils Naumann, Adam Ayeb

{"title":"Online Grain Size Measurement by Laser Ultrasonics in a Hot Rolling Mill","authors":"G. Cousin, P. Meilland, F. Damoiselet, N. Legrand, Nils Naumann, Adam Ayeb","doi":"10.58286/28204","DOIUrl":"https://doi.org/10.58286/28204","url":null,"abstract":"\u0000Laser ultrasonics (LUS) has shown through numerous studies and in-situ laboratory\u0000\u0000experiments, its suitability to track microstructural features evolution as well as\u0000\u0000metallurgical transformation in steels during thermal cycles with temperatures reaching\u0000\u00001250°C. This prior work has motivated the use of this technology to be in applied in an\u0000\u0000industrial hot strip mill (HSM) in Eisenhüttenstadt, Germany. For this purpose, a\u0000\u0000transportable trolley which embedded LUS components (Generation and Detection\u0000\u0000Lasers, Two-Wave Mixing Interferometer, Dedicated Fibered Optical Head) was\u0000\u0000designed. The industrial investigation was carried on moving strips during normal\u0000\u0000production at several locations of the HSM, resulting in signals for high-strength lowalloy (HSLA) and advanced high-strength steel (AHSS) grades. The development of a\u0000\u0000specific data processing tool allowed calculating the grain size from the analysis of the\u0000\u0000online recorded signals. Such results were then compared to predictions from\u0000\u0000metallurgical models, finding reasonably close values. LUS appears as a suitable solution\u0000\u0000to monitor microstructural features and metallurgical transformations occurring in steel\u0000\u0000in a Hot Strip Mill (HSM) line. This approach could enable in the future the development\u0000\u0000of more reliable models and control loop of the process. This action was supported by the\u0000\u0000European commission and led by a consortium composed by ArcelorMittal, Imagine\u0000\u0000Optic and IMI-NRC.\u0000\u0000\u0000","PeriodicalId":383798,"journal":{"name":"Research and Review Journal of Nondestructive Testing","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128030608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation of glycerol speed of sound 甘油声速的评价

Research and Review Journal of Nondestructive Testing Pub Date : 2023-08-01 DOI: 10.58286/28136

J. Santos, A. Ferreira, Anastazija Ratkajec, Mário J. Santos

引用次数: 0

Identification of overloads on splined shafts by means of eddy current testing technology 花键轴过载涡流检测技术的研究

Research and Review Journal of Nondestructive Testing Pub Date : 2023-08-01 DOI: 10.58286/28069

René Gansel, Stefan Zwoch, C. Heinrich, A. Lohrengel, H. Maier, S. Barton

{"title":"Identification of overloads on splined shafts by means of eddy current testing technology","authors":"René Gansel, Stefan Zwoch, C. Heinrich, A. Lohrengel, H. Maier, S. Barton","doi":"10.58286/28069","DOIUrl":"https://doi.org/10.58286/28069","url":null,"abstract":"\u0000For the development of resource-efficient machines, the availability of high-quality information about the actual loads that occur is a key prerequisite. By continuously monitoring the loads on the component, critical events can be detected, and thus component failure prevented. Future product generations can also be designed in a resource-saving way depending on the loads that actually occur. The information is most useful when it is obtained directly from the highly loaded areas of the component. In this study, a concept is presented that enables in-situ detection of mechanical overloads on splined shafts by eddy current techniques. Splined shaft connections are among the most heavily stressed machine elements in the drive train and are usually located centrally in the powertrain. To monitor mechanical overloads, a material-integrated sensor will be developed. The structural change that takes place in the sensor as a result of overloads can be monitored with the help of eddy current testing technology. To ensure permanent monitoring of the sensor area, a compact eddy current testing system has to be integrated into the component. This consists of a printed circuit board coil, an evaluation unit, a data transmission module and an energy-harvesting module. The measurement principle for the stainless steels employed is based on the microstructural transformation from metastable austenite to martensite when the material is stressed beyond a threshold value. The threshold at which the structural transformation occurs can individually be adjusted in the sensor area by a local laser heat treatment.\u0000","PeriodicalId":383798,"journal":{"name":"Research and Review Journal of Nondestructive Testing","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131416348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0