JP7247007B2 - 温度に敏感でない損傷検出のためのシステム - Google Patents
温度に敏感でない損傷検出のためのシステム Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D45/00—Aircraft indicators or protectors not otherwise provided for
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0033—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining damage, crack or wear
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0016—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings of aircraft wings or blades
-
- 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
-
- 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
- G01N29/22—Details, e.g. general constructional or apparatus details
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- 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
- G01N29/4409—Processing the detected response signal, e.g. electronic circuits specially adapted therefor by comparison
- G01N29/4436—Processing the detected response signal, e.g. electronic circuits specially adapted therefor by comparison with a reference signal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D45/00—Aircraft indicators or protectors not otherwise provided for
- B64D2045/0085—Devices for aircraft health monitoring, e.g. monitoring flutter or vibration
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/028—Material parameters
- G01N2291/0289—Internal structure, e.g. defects, grain size, texture
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/10—Number of transducers
- G01N2291/106—Number of transducers one or more transducer arrays
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/26—Scanned objects
- G01N2291/269—Various geometry objects
- G01N2291/2694—Wings or other aircraft parts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Analytical Chemistry (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)
- Signal Processing (AREA)
- Acoustics & Sound (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Description
Gain DI = Gain’ - 1 数式2
102 構造
104 トランスデューサ
104a アクチュエータトランスデューサ
104b センサトランスデューサ
104c センサトランスデューサ
106 アレイ
108 データ収集(DAQ)回路
110 配線束
112 経路
114 経路
116 プロセッサ
118 メモリ
202 基準振動信号
204 振幅
206 時間
208 比較振動信号
210 誤差信号
302 グラフ
304 グラフ
306 グラフ
308 グラフ
310 グラフ
312 グラフ
314 電圧
316 時間
318 基準振動信号
320 比較振動信号
322 比較振動信号
324 比較振動信号
326 比較振動信号
328 比較振動信号
330 比較振動信号
400 方法
Claims (8)
- 航空機構造の損傷を検出するためのシステムであって、前記システムが、
航空機構造(102)と、
前記航空機構造の構造健全性を監視するように構成された構造健全性監視(SHM)システム(100)と、
を備え、前記SHMシステムが、
前記航空機構造に接合され、
第1の時刻に前記航空機構造を通して伝搬する基準振幅を有する基準振動信号を発生させ、
前記第1の時刻の後の第2の時刻に前記航空機構造を通して伝搬する比較振幅を有する比較振動信号を発生させるように構成されたアクチュエータ(104a)であって、前記比較振幅が前記第1の時刻と前記第2の時刻との間に前記航空機構造が受けた損傷を表す、アクチュエータ(104a)と、
前記航空機構造に接合され、前記基準振動信号および前記比較振動信号を受信するように構成されたセンサ(104b、104c)と、
前記基準振幅を前記比較振幅で除算した値の関数として利得損傷指数を計算するように構成されたプロセッサ(116)であって、前記プロセッサ(116)が、前記利得損傷指数を計算する前に、前記第1の時刻と前記第2の時刻との間の温度変化に起因する前記比較振動信号の位相ずれを除去するように構成されることによって、前記利得損傷指数は、前記SHMシステムが前記航空機構造の前記構造健全性を温度と無関係に監視することを可能にする、プロセッサ(116)と、
を備える、システム。 - 前記利得損傷指数が前記航空機構造(102)内の亀裂の存在または不存在を示す、請求項1に記載のシステム。
- 前記航空機構造(102)が複数の積層を有する複合構造を備える、請求項1または2に記載のシステム。
- 前記アクチュエータ(104a)がチタン酸ジルコン酸鉛(PZT)トランスデューサを備える、請求項1から3のいずれか一項に記載のシステム。
- 前記プロセッサ(116)が、前記基準振幅を前記比較振幅で乗算して前記比較振幅の2乗で除算した値の関数として前記利得損傷指数を計算するようにさらに構成された、請求項1から4のいずれか一項に記載のシステム。
- 構造(102)内の損傷を検出する方法(400)であって、
前記構造のための基準振動信号をメモリから取得するステップ(410)であって、前記基準振動信号が以前に収集されたものである、ステップ(410)と、
前記構造に接合された第1のトランスデューサに電圧を加えて、前記構造を通して伝搬する比較振動信号を発生させるステップ(420)と、
前記構造に接合された第2のトランスデューサにおいて前記比較振動信号を受信するステップ(430)と、
前記基準振動信号が以前に収集されたときの温度に対する、前記比較振動信号が受信される(430)ときの温度の変化に起因する前記比較振動信号の位相ずれを検出するステップと、
利得損傷指数アルゴリズムを実行する(440)前に前記比較振動信号から前記位相ずれを除去するステップと、
前記基準振動信号および前記比較振動信号を使用して前記利得損傷指数アルゴリズムを実行して、前記基準振動信号の振幅を前記比較振動信号の振幅で乗算して前記比較振動信号の前記振幅の2乗で除算した値の関数として利得損傷指数を計算するステップ(440)と、
前記利得損傷指数が正であるときに前記構造内の損傷を識別するステップ(450)と、
を含む、方法(400)。 - ほぼ前記第1のトランスデューサの位置において、前記第1のトランスデューサを接合する前に、前記構造に接合された第3のトランスデューサに電圧を加えて前記基準振動信号を発生させるステップと、
ほぼ前記第2のトランスデューサの位置において、前記第2のトランスデューサを接合する前に、前記構造に接合された第4のトランスデューサにおいて前記基準振動信号を受信するステップと、
前記基準振動信号を前記メモリに保存するステップと、
をさらに含む、請求項6に記載の方法(400)。 - 前記構造内の損傷を識別するステップ(450)が、前記構造内の亀裂を検出するステップを含む、請求項6または7に記載の方法(400)。
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US16/028,962 | 2018-07-06 | ||
US16/028,962 US10816436B2 (en) | 2018-07-06 | 2018-07-06 | System for temperature insensitive damage detection |
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JP2020008562A JP2020008562A (ja) | 2020-01-16 |
JP7247007B2 true JP7247007B2 (ja) | 2023-03-28 |
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EP (1) | EP3591365B1 (ja) |
JP (1) | JP7247007B2 (ja) |
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Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10895592B2 (en) | 2017-03-24 | 2021-01-19 | Rosemount Aerospace Inc. | Probe heater remaining useful life determination |
US11060992B2 (en) | 2017-03-24 | 2021-07-13 | Rosemount Aerospace Inc. | Probe heater remaining useful life determination |
US10914777B2 (en) | 2017-03-24 | 2021-02-09 | Rosemount Aerospace Inc. | Probe heater remaining useful life determination |
US10962580B2 (en) * | 2018-12-14 | 2021-03-30 | Rosemount Aerospace Inc. | Electric arc detection for probe heater PHM and prediction of remaining useful life |
US11061080B2 (en) | 2018-12-14 | 2021-07-13 | Rosemount Aerospace Inc. | Real time operational leakage current measurement for probe heater PHM and prediction of remaining useful life |
US11639954B2 (en) | 2019-05-29 | 2023-05-02 | Rosemount Aerospace Inc. | Differential leakage current measurement for heater health monitoring |
US11930563B2 (en) | 2019-09-16 | 2024-03-12 | Rosemount Aerospace Inc. | Monitoring and extending heater life through power supply polarity switching |
US11630140B2 (en) | 2020-04-22 | 2023-04-18 | Rosemount Aerospace Inc. | Prognostic health monitoring for heater |
CN112052527B (zh) * | 2020-09-25 | 2022-09-16 | 中国直升机设计研究所 | 一种直升机振动环境谱编制方法 |
CN112298584B (zh) * | 2020-10-30 | 2024-05-10 | 中国航空工业集团公司西安航空计算技术研究所 | 一种直升机主减速器转速振动数据同步与融合方法 |
CN113252789B (zh) * | 2021-06-11 | 2022-03-08 | 东莞理工学院 | 钢轨接头螺孔裂纹的非线性超声谐波检测方法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060095223A1 (en) | 2004-10-29 | 2006-05-04 | Gordon Grant A | Method for verifying sensors installation and determining the location of the sensors after installation in a structural health management system |
US20090182515A1 (en) | 2008-01-11 | 2009-07-16 | The Boeing Company | High density structural health monitoring system and method |
US20090192729A1 (en) | 2008-01-24 | 2009-07-30 | The Boeing Company | Method and system for the determination of damage location |
US20120323517A1 (en) | 2011-06-17 | 2012-12-20 | Pado Lawrence E | Systems and methods for providing temperature compensation in structural health monitoring |
WO2013183314A1 (ja) | 2012-06-06 | 2013-12-12 | 日本電気株式会社 | 構造物の分析装置および構造物の分析方法 |
US20140100832A1 (en) | 2012-10-09 | 2014-04-10 | The Boeing Company | Methods and systems for structural health monitoring |
Family Cites Families (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5195046A (en) | 1989-01-10 | 1993-03-16 | Gerardi Joseph J | Method and apparatus for structural integrity monitoring |
US5774376A (en) | 1995-08-07 | 1998-06-30 | Manning; Raymund A. | Structural health monitoring using active members and neural networks |
US6006163A (en) | 1997-09-15 | 1999-12-21 | Mcdonnell Douglas Corporation | Active damage interrogation method for structural health monitoring |
US5965817A (en) * | 1998-07-28 | 1999-10-12 | Quasar International, Inc. | Temperature compensation of resonant frequency measurements for the effects of temperature variations |
WO2002062206A2 (en) | 2001-02-08 | 2002-08-15 | University Of South Carolina | In-situ structural health monitoring, diagnostics and prognostics system utilizing thin piezoelectric sensors |
AU2003243566A1 (en) | 2002-06-14 | 2003-12-31 | University Of South Carolina | Structural health monitoring system utilizing guided lamb waves embedded ultrasonic structural radar |
US20090157358A1 (en) | 2003-09-22 | 2009-06-18 | Hyeung-Yun Kim | System for diagnosing and monitoring structural health conditions |
US7930128B2 (en) | 2007-04-16 | 2011-04-19 | Acellent Technologies, Inc. | Robust damage detection |
CN101539541B (zh) | 2009-04-09 | 2011-01-05 | 上海交通大学 | 基于导向波的厚梁结构损伤检测方法 |
US8386118B2 (en) * | 2009-08-04 | 2013-02-26 | The Boeing Company | System and method for detecting an anomaly in a hidden layer of a multi-layer structure |
FR2974900B1 (fr) * | 2011-05-02 | 2013-05-17 | Aircelle Sa | Ensemble et procede de surveillance pour detecter des defauts structurels pouvant apparaitre dans une nacelle d'aeronef |
KR20130029874A (ko) * | 2011-09-16 | 2013-03-26 | 주식회사 브이원 | 탄성파를 이용한 유리판의 크랙탐지장치 및 이를 이용한 크랙탐지방법 |
CN103383375B (zh) * | 2012-11-26 | 2016-09-28 | 中国商用飞机有限责任公司 | 一种线性缺陷定量化监测方法 |
US9664649B2 (en) * | 2013-12-16 | 2017-05-30 | Embraer S.A. | Structural health monitoring system employing electromechanical impedance technology |
US10024756B2 (en) | 2014-10-28 | 2018-07-17 | Embraer S.A. | Method and system for structural health monitoring with frequency synchronization |
US10802081B2 (en) | 2016-04-04 | 2020-10-13 | Schneider Electric USA, Inc. | Method and system for analyzing waveforms in power systems |
US10218018B2 (en) | 2016-05-03 | 2019-02-26 | GM Global Technology Operations LLC | Fuel cell stack health monitoring using groups of fuel cells |
US20220326117A1 (en) | 2016-05-18 | 2022-10-13 | I-Care Sprl | Analysis of Oversampled High Frequency Vibration Signals |
US10132879B2 (en) | 2016-05-23 | 2018-11-20 | Allegro Microsystems, Llc | Gain equalization for multiple axis magnetic field sensing |
US11432732B2 (en) | 2016-06-28 | 2022-09-06 | Chiscan Holdings, Llc | System and method of measuring millimeter wave of cold atmospheric pressure plasma |
US20180028125A1 (en) | 2016-07-29 | 2018-02-01 | National Kaohsiung University Of Applied Sciences | Health Care System |
CN109844518B (zh) | 2016-08-16 | 2022-09-20 | 加拿大国家研究委员会 | 超声波岩石锚杆状态监测的方法和系统 |
ES2731276T3 (es) | 2016-08-29 | 2019-11-14 | Siemens Ag | Procedimiento para el funcionamiento de una máquina para la fabricación y/o el tratamiento de una banda de material |
US20230003720A1 (en) | 2016-10-27 | 2023-01-05 | Koniku Inc. | Systems for detection |
JP7026125B2 (ja) | 2016-11-08 | 2022-02-25 | パネラテック・インコーポレイテッド | 物質浸食監視システム及び方法 |
US10699305B2 (en) | 2016-11-21 | 2020-06-30 | Nio Usa, Inc. | Smart refill assistant for electric vehicles |
EP3548850B1 (en) | 2016-11-30 | 2021-03-31 | Micro Motion Inc. | Temperature compensation of a test tone used in meter verification |
-
2018
- 2018-07-06 US US16/028,962 patent/US10816436B2/en active Active
-
2019
- 2019-04-16 JP JP2019077706A patent/JP7247007B2/ja active Active
- 2019-05-03 EP EP19172554.8A patent/EP3591365B1/en active Active
- 2019-07-05 CN CN201910605117.5A patent/CN110683061A/zh active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060095223A1 (en) | 2004-10-29 | 2006-05-04 | Gordon Grant A | Method for verifying sensors installation and determining the location of the sensors after installation in a structural health management system |
US20090182515A1 (en) | 2008-01-11 | 2009-07-16 | The Boeing Company | High density structural health monitoring system and method |
US20090192729A1 (en) | 2008-01-24 | 2009-07-30 | The Boeing Company | Method and system for the determination of damage location |
US20120323517A1 (en) | 2011-06-17 | 2012-12-20 | Pado Lawrence E | Systems and methods for providing temperature compensation in structural health monitoring |
WO2013183314A1 (ja) | 2012-06-06 | 2013-12-12 | 日本電気株式会社 | 構造物の分析装置および構造物の分析方法 |
US20140100832A1 (en) | 2012-10-09 | 2014-04-10 | The Boeing Company | Methods and systems for structural health monitoring |
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