EP2699895A1 - Procede de simulation d'operations de contrôle non-destructif en conditions reelles utilisant des signaux synthetiques - Google Patents

Procede de simulation d'operations de contrôle non-destructif en conditions reelles utilisant des signaux synthetiques

Info

Publication number
EP2699895A1
EP2699895A1 EP12714321.2A EP12714321A EP2699895A1 EP 2699895 A1 EP2699895 A1 EP 2699895A1 EP 12714321 A EP12714321 A EP 12714321A EP 2699895 A1 EP2699895 A1 EP 2699895A1
Authority
EP
European Patent Office
Prior art keywords
signals
probe
synthetic
measured
space
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP12714321.2A
Other languages
German (de)
English (en)
French (fr)
Inventor
Nicolas Dominguez
Didier Simonet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Airbus Group SAS
Original Assignee
European Aeronautic Defence and Space Company EADS France
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by European Aeronautic Defence and Space Company EADS France filed Critical European Aeronautic Defence and Space Company EADS France
Publication of EP2699895A1 publication Critical patent/EP2699895A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M99/00—Subject matter not provided for in other groups of this subclass
    • G01M99/008—Subject matter not provided for in other groups of this subclass by doing functionality tests
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/04—Analysing solids
    • G01N29/043—Analysing solids in the interior, e.g. by shear waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
    • G01N29/4472—Mathematical theories or simulation
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B9/00—Simulators for teaching or training purposes
    • G09B9/02—Simulators for teaching or training purposes for teaching control of vehicles or other craft
    • G09B9/06—Simulators for teaching or training purposes for teaching control of vehicles or other craft for teaching control of ships, boats, or other waterborne vehicles
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B9/00—Simulators for teaching or training purposes
    • G09B9/02—Simulators for teaching or training purposes for teaching control of vehicles or other craft
    • G09B9/08—Simulators for teaching or training purposes for teaching control of vehicles or other craft for teaching control of aircraft, e.g. Link trainer
    • G09B9/16—Ambient or aircraft conditions simulated or indicated by instrument or alarm

Definitions

  • the present invention relates to a method for simulating non-destructive control operations in real conditions using synthetic signals.
  • the present invention relates to non-destructive testing operations. It is classified in the simulator category, on the same principle as operational simulators such as flight simulators or control room simulators of nuclear power plants, but is applied to non-destructive testing operations.
  • POD curve generation methodologies using simulation data are under study but still suffer from not addressing the human behavior factor that may have a significant weight in the detection statistic (fatigue, access, read-out). the screen, interpretation / diagnosis ).
  • a corollary requirement is that of quantifying the detection performance of automatic diagnostic software.
  • the estimation of POD curves results from the statistical analysis of inspection results on a set of representative defects in the structure undergoing the procedure.
  • the defects of the sample should be spread over a range of sizes which covers defect sizes that will be very rarely detected and defects sizes very rarely missed. Data are obtained expressing the result of the inspection (quantitative or binary) according to the characteristic size of the defect ( Figure 1 a). After statistical analysis, we obtain curves of the type of that of Figure 1b. The criteria of statistical representativeness make it necessary to have a large number of structural samples.
  • the recommendations of MIL-HDBK-1823 (available at the following URL: http://mh1823.com/mh1823/MIL-HDBK- 1823A (2009) .pdf) report at least sixty structural elements containing defects , plus fifteen healthy samples to control the rate of false alarms.
  • the methodology consists in defining uncertainties on the input parameters of the simulation software of the control operation (for example CIVA), so as to simulate the variability on the inspection results (the outputs of the simulation).
  • the present invention intends to overcome the drawbacks of the prior art by proposing a non-destructive control simulation method using synthetic signals.
  • the present invention relates, in its most general sense, to a non-destructive testing simulation method using at least one probe, characterized in that it comprises the following steps:
  • said generation of synthetic signals is partly conditioned by a configuration generated by a configuration generator which consists of a virtual model of structure.
  • said virtual model of the structure is completed by the introduction of defects and / or by modifying the properties of the structural elements.
  • said synthetic signals are measured signals.
  • said synthetic signals are measured and modified signals.
  • said signals are modified according to a weighting, according to an amplification function of time and / or according to a transfer function.
  • said synthetic signals are simulated and / or modeled.
  • said synthetic signals are a combination of:
  • said synthetic signals are measured on relevant structural zones, taking into account information related to the actual positioning of said probe in space.
  • said synthetic signals are measured on relevant structural zones, taking into account information related to adjustments made by an operator.
  • the measurement of inspection parameters related to the position of said probe in space is carried out by means of a simple encoding.
  • the measurement of inspection parameters related to the position of said probe in space is performed by means of a simple optical encoding.
  • the measurement of inspection parameters related to the position of said probe in space is carried out by means of devices including gyroscopes.
  • the present invention also relates to a device for implementing the method mentioned above.
  • the advantages of the process according to the present invention are as follows:
  • FIG. 1a illustrates an example of POD data ("Probability Of
  • FIG. 2 is a block diagram of the method according to the present invention.
  • FIG. 3 illustrates examples of synthetic signals.
  • the signals displayed on the screen of a control equipment are said to be synthetic insofar as they are not (exactly) the signals recorded by the acquisition card of the instrument used.
  • measured and modified signals eg weighting, time-dependent amplification, transfer function, etc.
  • Figure 2 is a block diagram of the method according to the present invention: an operational inspection is performed. Depending on the parameters related to the operational inspection (adjustments, position of the probe, measured signal, ...) and according to the definition of the geometry of the structure and the current configuration (default (s) introduced by the configuration generator), synthetic signals are generated. Depending on the response of the inspection (signal, value, mapping %), a decision is made by an operator or in software, and finally, a diagnosis is made.
  • the generated synthetic signals can be, depending on the control configurations, displayed directly (real time) to the screen of the inspection device, or provided to the software in charge of data acquisition, for further processing for diagnosis.
  • the method according to the present invention comprises in particular three stages, which are:
  • the generation of synthetic signals is conditioned by:
  • this DMU can be completed by the introduction of defects and / or by the modification of the properties of the structural elements (thickness of parts, geometry on the back, material). This element is comparable to the piece of software that modifies game settings in video games.
  • a third important element of implementation of the invention concerns the communication between these three subsystems to ensure a smooth flow of the display of the synthesized signals on the screen.
  • the measurement of the "sensor positioning" parameters depends on the complexity of the inspection operation, in particular the number of degrees of freedom of the probe:
  • Another step is to generate synthetic signals that correspond to the CND ("Non Destructive Control") operation that the operator is performing. These signals are displayed in real time (or delayed mastered) on the screen of the inspection device.
  • CND Non Destructive Control
  • Signal synthesis is widely used in musical acoustics, for example for digital instruments.
  • Two approaches are developed. Either the digital instrument "plays" prerecorded notes and drawn from a database to generate a realistic acoustic signal, or the synthesized signals use simulated signals using physical instrument models.
  • signals corresponding to the response to a CND operation (“Non-Destructive Control") can be synthesized.
  • the most similar case concerns ultrasonic inspections which provide acoustic sonograms of structures. However, the concept can be extended without restriction to electromagnetic or radiographic signals.
  • the synthesized signals may, for example, be generated using:
  • interactivity between an operator and the measuring apparatus can be implemented, for example to automate the input of inspection results (detection, amplitude, sizing).
  • This interactivity can be provided by ⁇ (Human Machine Interface) of the measuring device.
  • the present invention may be used by any manufacturer using NDT (Non-Destructive Testing) or by CND operator training and examination centers, with the aim of:
  • the method according to the present invention can also be used to evaluate the diagnostic performance of analysis software using the generation of synthetic signals with variable defects (synthetic mappings).

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Educational Administration (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Educational Technology (AREA)
  • Business, Economics & Management (AREA)
  • Analytical Chemistry (AREA)
  • Acoustics & Sound (AREA)
  • Algebra (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Signal Processing (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Gyroscopes (AREA)
EP12714321.2A 2011-04-21 2012-04-16 Procede de simulation d'operations de contrôle non-destructif en conditions reelles utilisant des signaux synthetiques Ceased EP2699895A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1153486A FR2974437B1 (fr) 2011-04-21 2011-04-21 Procede de simulation d'operations de controle non-destructif en conditions reelles utilisant des signaux synthetiques
PCT/EP2012/056909 WO2012143327A1 (fr) 2011-04-21 2012-04-16 Procede de simulation d'operations de contrôle non-destructif en conditions reelles utilisant des signaux synthetiques

Publications (1)

Publication Number Publication Date
EP2699895A1 true EP2699895A1 (fr) 2014-02-26

Family

ID=45954675

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12714321.2A Ceased EP2699895A1 (fr) 2011-04-21 2012-04-16 Procede de simulation d'operations de contrôle non-destructif en conditions reelles utilisant des signaux synthetiques

Country Status (8)

Country Link
US (1) US20140047934A1 (zh)
EP (1) EP2699895A1 (zh)
CN (1) CN103597346B (zh)
BR (1) BR112013026969A2 (zh)
FR (1) FR2974437B1 (zh)
RU (1) RU2594368C2 (zh)
SG (2) SG194516A1 (zh)
WO (1) WO2012143327A1 (zh)

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9937577B2 (en) 2006-12-20 2018-04-10 Lincoln Global, Inc. System for a welding sequencer
US10994358B2 (en) 2006-12-20 2021-05-04 Lincoln Global, Inc. System and method for creating or modifying a welding sequence based on non-real world weld data
US9104195B2 (en) 2006-12-20 2015-08-11 Lincoln Global, Inc. Welding job sequencer
US8851896B2 (en) 2008-08-21 2014-10-07 Lincoln Global, Inc. Virtual reality GTAW and pipe welding simulator and setup
US9483959B2 (en) 2008-08-21 2016-11-01 Lincoln Global, Inc. Welding simulator
US8884177B2 (en) 2009-11-13 2014-11-11 Lincoln Global, Inc. Systems, methods, and apparatuses for monitoring weld quality
US8911237B2 (en) 2008-08-21 2014-12-16 Lincoln Global, Inc. Virtual reality pipe welding simulator and setup
US9318026B2 (en) 2008-08-21 2016-04-19 Lincoln Global, Inc. Systems and methods providing an enhanced user experience in a real-time simulated virtual reality welding environment
US9280913B2 (en) 2009-07-10 2016-03-08 Lincoln Global, Inc. Systems and methods providing enhanced education and training in a virtual reality environment
US8747116B2 (en) 2008-08-21 2014-06-10 Lincoln Global, Inc. System and method providing arc welding training in a real-time simulated virtual reality environment using real-time weld puddle feedback
US9330575B2 (en) 2008-08-21 2016-05-03 Lincoln Global, Inc. Tablet-based welding simulator
US8834168B2 (en) 2008-08-21 2014-09-16 Lincoln Global, Inc. System and method providing combined virtual reality arc welding and three-dimensional (3D) viewing
US9196169B2 (en) 2008-08-21 2015-11-24 Lincoln Global, Inc. Importing and analyzing external data using a virtual reality welding system
US8274013B2 (en) 2009-03-09 2012-09-25 Lincoln Global, Inc. System for tracking and analyzing welding activity
US9773429B2 (en) 2009-07-08 2017-09-26 Lincoln Global, Inc. System and method for manual welder training
US9221117B2 (en) 2009-07-08 2015-12-29 Lincoln Global, Inc. System for characterizing manual welding operations
US9011154B2 (en) 2009-07-10 2015-04-21 Lincoln Global, Inc. Virtual welding system
US10748447B2 (en) 2013-05-24 2020-08-18 Lincoln Global, Inc. Systems and methods providing a computerized eyewear device to aid in welding
US8569655B2 (en) 2009-10-13 2013-10-29 Lincoln Global, Inc. Welding helmet with integral user interface
US8569646B2 (en) 2009-11-13 2013-10-29 Lincoln Global, Inc. Systems, methods, and apparatuses for monitoring weld quality
US9468988B2 (en) 2009-11-13 2016-10-18 Lincoln Global, Inc. Systems, methods, and apparatuses for monitoring weld quality
CA2821671C (en) 2010-12-13 2018-01-09 Edison Welding Institute, Inc. Welding training system
US20160093233A1 (en) 2012-07-06 2016-03-31 Lincoln Global, Inc. System for characterizing manual welding operations on pipe and other curved structures
US9767712B2 (en) 2012-07-10 2017-09-19 Lincoln Global, Inc. Virtual reality pipe welding simulator and setup
US10930174B2 (en) 2013-05-24 2021-02-23 Lincoln Global, Inc. Systems and methods providing a computerized eyewear device to aid in welding
US20150072323A1 (en) 2013-09-11 2015-03-12 Lincoln Global, Inc. Learning management system for a real-time simulated virtual reality welding training environment
US10083627B2 (en) 2013-11-05 2018-09-25 Lincoln Global, Inc. Virtual reality and real welding training system and method
US9836987B2 (en) 2014-02-14 2017-12-05 Lincoln Global, Inc. Virtual reality pipe welding simulator and setup
CN106233358A (zh) 2014-06-02 2016-12-14 林肯环球股份有限公司 用于人工焊工培训的系统和方法
FR3027392B1 (fr) * 2014-10-15 2016-12-09 Airbus Operations Sas Procede et ensemble de verification de la calibration d'un systeme de controle non destructif de pieces.
EP3319066A1 (en) 2016-11-04 2018-05-09 Lincoln Global, Inc. Magnetic frequency selection for electromagnetic position tracking
US10878591B2 (en) 2016-11-07 2020-12-29 Lincoln Global, Inc. Welding trainer utilizing a head up display to display simulated and real-world objects
US10913125B2 (en) 2016-11-07 2021-02-09 Lincoln Global, Inc. Welding system providing visual and audio cues to a welding helmet with a display
US10228693B2 (en) * 2017-01-13 2019-03-12 Ford Global Technologies, Llc Generating simulated sensor data for training and validation of detection models
US10997872B2 (en) 2017-06-01 2021-05-04 Lincoln Global, Inc. Spring-loaded tip assembly to support simulated shielded metal arc welding
US11557223B2 (en) 2018-04-19 2023-01-17 Lincoln Global, Inc. Modular and reconfigurable chassis for simulated welding training
US11475792B2 (en) 2018-04-19 2022-10-18 Lincoln Global, Inc. Welding simulator with dual-user configuration
US20220011269A1 (en) * 2018-12-04 2022-01-13 Ge Inspection Technologies, Lp Digital twin of an automated non-destructive ultrasonic testing system
CN112179987B (zh) * 2020-09-15 2022-07-15 河海大学 一种长距离薄板结构微缺陷的无损检测方法
US20240119199A1 (en) * 2021-02-19 2024-04-11 INDIAN INSTITUTE OF TECHNOLOGY MADRAS (IIT Madras) Method and system for generating time-efficient synthetic non-destructive testing data

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4311044A (en) * 1980-02-25 1982-01-19 The B. F. Goodrich Company Tire sidewall bump/depression detection system
US4495587A (en) * 1981-12-08 1985-01-22 Bethlehem Steel Corporation Automatic nondestructive roll defect inspection system
SU1366936A1 (ru) * 1986-02-26 1988-01-15 Всесоюзный Научно-Исследовательский Институт По Разработке Неразрушающих Методов И Средств Контроля Качества Материалов Имитатор сигналов акустической эмиссии
SU1499220A1 (ru) * 1987-04-10 1989-08-07 Предприятие П/Я Р-6542 Способ электронного моделировани дефектов
SU1486919A1 (ru) * 1987-09-30 1989-06-15 Kishinevsk Selskokhoz I Имитатор сигналов акустической эмиссии
DE3765641D1 (de) * 1987-12-10 1990-11-22 Atomic Energy Authority Uk Geraet zum simulieren einer untersuchungsvorrichtung.
US6006163A (en) * 1997-09-15 1999-12-21 Mcdonnell Douglas Corporation Active damage interrogation method for structural health monitoring
US6931748B2 (en) * 2002-04-05 2005-08-23 Varco I/P, Inc. Riser and tubular inspection systems
US6775625B2 (en) * 2002-09-10 2004-08-10 Southwest Research Institute System and method for nondestructive testing simulation
GB2419196B (en) * 2004-10-13 2007-03-14 Westerngeco Ltd Processing data representing energy propagating through a medium
EP2148196A1 (en) * 2005-07-07 2010-01-27 Kabushiki Kaisha Toshiba Laser-based apparatus for ultrasonic flaw detection
US7560920B1 (en) * 2005-10-28 2009-07-14 Innovative Materials Testing Technologies, Inc. Apparatus and method for eddy-current scanning of a surface to detect cracks and other defects
WO2007092054A2 (en) * 2006-02-06 2007-08-16 Specht Donald F Method and apparatus to visualize the coronary arteries using ultrasound
US7333898B2 (en) * 2006-06-05 2008-02-19 The Boeing Company Passive structural assessment and monitoring system and associated method
US7930128B2 (en) * 2007-04-16 2011-04-19 Acellent Technologies, Inc. Robust damage detection
US7822573B2 (en) * 2007-08-17 2010-10-26 The Boeing Company Method and apparatus for modeling responses for a material to various inputs
FR2925690B1 (fr) * 2007-12-21 2010-01-01 V & M France Controle non destructif,en particulier pour des tubes en cours de fabrication ou a l'etat fini.
US8917916B2 (en) * 2008-02-25 2014-12-23 Colin Bruce Martin Medical training method and apparatus
US9177371B2 (en) * 2008-06-09 2015-11-03 Siemens Energy, Inc. Non-destructive examination data visualization and analysis
US8657605B2 (en) * 2009-07-10 2014-02-25 Lincoln Global, Inc. Virtual testing and inspection of a virtual weldment
US8494810B2 (en) * 2009-06-05 2013-07-23 Jentek Sensors, Inc. Component adaptive life management

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2012143327A1 *

Also Published As

Publication number Publication date
RU2013151806A (ru) 2015-05-27
US20140047934A1 (en) 2014-02-20
SG10201605330SA (en) 2016-08-30
RU2594368C2 (ru) 2016-08-20
BR112013026969A2 (pt) 2017-01-10
CN103597346A (zh) 2014-02-19
CN103597346B (zh) 2016-09-14
SG194516A1 (en) 2013-12-30
FR2974437A1 (fr) 2012-10-26
WO2012143327A1 (fr) 2012-10-26
FR2974437B1 (fr) 2013-10-25

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