Numerical simulations in support of the design of an ultrasonic device for sub-assembly identification

In this paper, it is shown how numerical simulations can help designing an ultrasonic instrument operating in harsh conditions. To prevent fuel handling errors in sodium cooled fast reactors, the identification of fuel sub-assemblies using ultrasound is being investigated. It is based on the interpr...

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Autores principales:	Paumel Kevin, Maurel Tom, Lhuillier Christian
Formato:	article
Lenguaje:	EN
Publicado:	EDP Sciences 2021
Materias:	focusing transducer harsh conditions finite element method ray-tracing code Physics QC1-999
Acceso en línea:	https://doaj.org/article/26e063c30a8241c0a9ebd85c5d4265a0
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spelling	oai:doaj.org-article:26e063c30a8241c0a9ebd85c5d4265a02021-12-02T17:12:46ZNumerical simulations in support of the design of an ultrasonic device for sub-assembly identification2100-014X10.1051/epjconf/202125305001https://doaj.org/article/26e063c30a8241c0a9ebd85c5d4265a02021-01-01T00:00:00Zhttps://www.epj-conferences.org/articles/epjconf/pdf/2021/07/epjconf_animma2021_05001.pdfhttps://doaj.org/toc/2100-014XIn this paper, it is shown how numerical simulations can help designing an ultrasonic instrument operating in harsh conditions. To prevent fuel handling errors in sodium cooled fast reactors, the identification of fuel sub-assemblies using ultrasound is being investigated. It is based on the interpretation of a code (aligned notches) engraved on the sub-assembly head using an emitting/receiving ultrasonic sensor. This reading is performed in liquid sodium with high temperature (up to 600°C) transducers. A first experiment in liquid sodium demonstrated the feasibility of this method. The reading quality and robustness depend on various parameters related to the ultrasonic beam (spectral response, focal distance, focal spot size), the code geometry (especially the notches’ dimensions) and geometrical alignments. In order to avoid numerous experiments, two numerical models are developed. The first one is a finite element simulation of the sensor providing its radiated field. This model is validated with the well-known analytic solution of the Rayleigh integral; then it is applied to the sensor used in the sodium experiment. The focal distance and focal spot diameter are close to the expected values. The second simulation, using CIVA software, provides the ultrasonic scan of the code. The result is in good agreement with the sodium experiment and a first comparison with a water experiment shows that this numerical tool is relevant for easily taking into account misalignment and misorientation of the scan.Paumel KevinMaurel TomLhuillier ChristianEDP Sciencesarticlefocusing transducerharsh conditionsfinite element methodray-tracing codePhysicsQC1-999ENEPJ Web of Conferences, Vol 253, p 05001 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	focusing transducer harsh conditions finite element method ray-tracing code Physics QC1-999
spellingShingle	focusing transducer harsh conditions finite element method ray-tracing code Physics QC1-999 Paumel Kevin Maurel Tom Lhuillier Christian Numerical simulations in support of the design of an ultrasonic device for sub-assembly identification
description	In this paper, it is shown how numerical simulations can help designing an ultrasonic instrument operating in harsh conditions. To prevent fuel handling errors in sodium cooled fast reactors, the identification of fuel sub-assemblies using ultrasound is being investigated. It is based on the interpretation of a code (aligned notches) engraved on the sub-assembly head using an emitting/receiving ultrasonic sensor. This reading is performed in liquid sodium with high temperature (up to 600°C) transducers. A first experiment in liquid sodium demonstrated the feasibility of this method. The reading quality and robustness depend on various parameters related to the ultrasonic beam (spectral response, focal distance, focal spot size), the code geometry (especially the notches’ dimensions) and geometrical alignments. In order to avoid numerous experiments, two numerical models are developed. The first one is a finite element simulation of the sensor providing its radiated field. This model is validated with the well-known analytic solution of the Rayleigh integral; then it is applied to the sensor used in the sodium experiment. The focal distance and focal spot diameter are close to the expected values. The second simulation, using CIVA software, provides the ultrasonic scan of the code. The result is in good agreement with the sodium experiment and a first comparison with a water experiment shows that this numerical tool is relevant for easily taking into account misalignment and misorientation of the scan.
format	article
author	Paumel Kevin Maurel Tom Lhuillier Christian
author_facet	Paumel Kevin Maurel Tom Lhuillier Christian
author_sort	Paumel Kevin
title	Numerical simulations in support of the design of an ultrasonic device for sub-assembly identification
title_short	Numerical simulations in support of the design of an ultrasonic device for sub-assembly identification
title_full	Numerical simulations in support of the design of an ultrasonic device for sub-assembly identification
title_fullStr	Numerical simulations in support of the design of an ultrasonic device for sub-assembly identification
title_full_unstemmed	Numerical simulations in support of the design of an ultrasonic device for sub-assembly identification
title_sort	numerical simulations in support of the design of an ultrasonic device for sub-assembly identification
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/26e063c30a8241c0a9ebd85c5d4265a0
work_keys_str_mv	AT paumelkevin numericalsimulationsinsupportofthedesignofanultrasonicdeviceforsubassemblyidentification AT maureltom numericalsimulationsinsupportofthedesignofanultrasonicdeviceforsubassemblyidentification AT lhuillierchristian numericalsimulationsinsupportofthedesignofanultrasonicdeviceforsubassemblyidentification
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Numerical simulations in support of the design of an ultrasonic device for sub-assembly identification

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