About: Nonlinear ultrasonic tomography using intermodulation techniques and time-reversal mirrors

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Nonlinear parameters obtained by Nonlinear Elastic Wave Spectroscopy (NEWS) NDT techniques can give us better information about incipient damage zones than linear ones. Some limitations of NEWS methodology are given by difficulties with more precise defects location when global excitation of larger or more complicated structures is applied. To overcome these constraints, further developments of NEWS techniques referred as nonlinear pseudo-tomography or tomography defects imaging are described in the paper. Two NEWS methods are considered: Nonlinear Wave Modulation Spectroscopy (NWMS) and Nonlinear Time Reversal Mirrors (NLTRM) with ESAM and DORT processing. Both procedures use transducer arrays, allowing localization of damaged zones. Testing results, obtained on metallic and concrete parts illustrate performance of both procedures. Nonlinear parameters obtained by Nonlinear Elastic Wave Spectroscopy (NEWS) NDT techniques can give us better information about incipient damage zones than linear ones. Some limitations of NEWS methodology are given by difficulties with more precise defects location when global excitation of larger or more complicated structures is applied. To overcome these constraints, further developments of NEWS techniques referred as nonlinear pseudo-tomography or tomography defects imaging are described in the paper. Two NEWS methods are considered: Nonlinear Wave Modulation Spectroscopy (NWMS) and Nonlinear Time Reversal Mirrors (NLTRM) with ESAM and DORT processing. Both procedures use transducer arrays, allowing localization of damaged zones. Testing results, obtained on metallic and concrete parts illustrate performance of both procedures. (en)
Title	Nonlinear ultrasonic tomography using intermodulation techniques and time-reversal mirrors Nonlinear ultrasonic tomography using intermodulation techniques and time-reversal mirrors (en)
skos:prefLabel	Nonlinear ultrasonic tomography using intermodulation techniques and time-reversal mirrors Nonlinear ultrasonic tomography using intermodulation techniques and time-reversal mirrors (en)
skos:notation	RIV/61388998:_____/09:00333801!RIV10-AV0-61388998
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(FR-TI1/274), P(GA106/07/1393), Z(AV0Z20760514)
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Převorovský, Zdeněk Vejvodová, Šárka Krofta, Josef Převorovský, David
http://linked.open.../riv/druhVysledku	O - Ostatní výsledky nezařaditelné do žádného z výše uvedených druhů výsledku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav termomechaniky AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	329723
http://linked.open...ai/riv/idVysledku	RIV/61388998:_____/09:00333801
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	nonlinear elastic wave spectroscopy; time reversal mirrors; nonlinear wave modulation; uktrasonic tomography (en)
http://linked.open.../riv/klicoveSlovo	time reversal mirrors nonlinear elastic wave spectroscopy nonlinear wave modulation uktrasonic tomography
http://linked.open...ontrolniKodProRIV	[DB38CF1DE734]
http://linked.open...in/vavai/riv/obor	BI
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	*Evaluation of SHM methods and its integration into aircraft maintenance system Nonlinear ultrasonic spectroscopy of magnesium metallic composits and alloys
http://linked.open...UplatneniVysledku	2009
http://linked.open...iv/tvurceVysledku	Převorovský, Zdeněk Krofta, Josef Převorovský, David Vejvodová, Šárka
http://linked.open...n/vavai/riv/zamer	Complex dynamical systems in thermodynamics, fluid and solid mechanics

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