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1. (WO2019044555) REMAINING LIFE EVALUATION METHOD AND MAINTENANCE MANAGEMENT METHOD
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2019/044555 International Application No.: PCT/JP2018/030609
Publication Date: 07.03.2019 International Filing Date: 20.08.2018
IPC:
G01M 99/00 (2011.01) ,G01N 17/00 (2006.01) ,G01N 29/06 (2006.01) ,G01N 29/26 (2006.01) ,G01N 29/30 (2006.01)
G PHYSICS
01
MEASURING; TESTING
M
TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
99
Subject matter not provided for in other groups of this subclass
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
17
Investigating resistance of materials to the weather, to corrosion, or to light
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
29
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
04
Analysing solids
06
Visualisation of the interior, e.g. acoustic microscopy
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
29
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
22
Details
26
Arrangements for orientation or scanning
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
29
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
22
Details
30
Arrangements for calibrating or comparing, e.g. with standard objects
Applicants:
三菱日立パワーシステムズ株式会社 MITSUBISHI HITACHI POWER SYSTEMS, LTD. [JP/JP]; 神奈川県横浜市西区みなとみらい三丁目3番1号 3-1, Minatomirai 3-Chome, Nishi-ku, Yokohama-shi, Kanagawa 2208401, JP
Inventors:
本田 雅幹 HONDA, Masaki; JP
西尾 敏昭 NISHIO, Toshiaki; JP
駒井 伸好 KOMAI, Nobuyoshi; JP
時吉 巧 TOKIYOSHI, Takumi; JP
藤田 正昭 FUJITA, Masaaki; JP
富永 公彦 TOMINAGA, Kimihiko; JP
大山 博之 OHYAMA, Hiroyuki; JP
坂田 文稔 SAKATA, Fumitoshi; JP
豊嶋 耕一 TESHIMA, Koichi; JP
村上 英治 MURAKAMI, Eiji; JP
山口 明範 YAMAGUCHI, Akinori; JP
Agent:
誠真IP特許業務法人 SEISHIN IP PATENT FIRM, P.C.; 東京都港区三田三丁目13番16号 三田43MTビル13階 Mita 43MT Building 13th Floor, 13-16, Mita 3-Chome, Minato-ku, Tokyo 1080073, JP
Priority Data:
2017-16626730.08.2017JP
Title (EN) REMAINING LIFE EVALUATION METHOD AND MAINTENANCE MANAGEMENT METHOD
(FR) PROCÉDÉ D'ÉVALUATION DE DURÉE DE VIE RESTANTE ET PROCÉDÉ DE GESTION DE MAINTENANCE
(JA) 余寿命評価方法及び保守管理方法
Abstract:
(EN) A remaining life evaluation method according to at least one embodiment of the present invention is characterized: by comprising a step for finding the size and position of a crack in an evaluation target object by comparing a flaw signal obtained from a flaw in the evaluation target object with a crack determination threshold value, and a step for inputting the size and the position of the crack into a remaining life evaluation model to calculate the remaining life of the evaluation target object; and in that the crack determination threshold value is set so that at least a crack in a pseudo crack state in which a localized creep life consumption rate is from X% to 90% (where 50 < X < 90 is satisfied) can be determined.
(FR) Au moins un mode de réalisation de la présente invention concerne un procédé d'évaluation de durée de vie restante comprenant une étape consistant à trouver la taille et la position d'une fissure dans un objet cible d'évaluation par la comparaison d'un signal de défaut obtenu à partir d'un défaut dans l'objet cible d'évaluation avec une valeur de seuil de détermination de fissure, et une étape consistant à entrer la taille et la position de la fissure dans un modèle d'évaluation de durée de vie restante afin de calculer la durée de vie restante de l'objet cible d'évaluation; la valeur de seuil de détermination de fissure est définie de telle sorte qu'au moins une fissure dans un état de pseudo-fissure dans laquelle un taux de consommation de durée de vie de fluage localisé est compris entre X % et 90 % (avec 50
(JA) 本発明の少なくとも一実施形態に係る余寿命評価方法は、評価対象物の探傷により得られる探傷信号を亀裂判別用閾値と対比することで、前記評価対象物における亀裂の大きさ及び位置を求めるステップと、前記亀裂の前記大きさ及び前記位置を余寿命評価モデルに入力し、前記評価対象物の余寿命を求めるステップと、を備え、前記亀裂判別用閾値は、少なくとも、局部的なクリープ寿命消費率がX%以上90%以下(但し、50<X<90を満たす。)の疑似亀裂状態の亀裂を判別可能に設定された ことを特徴とする。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)