JP2006292481A - Frp構造物の非破壊検査方法 - Google Patents
Frp構造物の非破壊検査方法 Download PDFInfo
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Abstract
【解決手段】本方法では、まず検査対象に格子を描き交点をマークする(ステップS101)。そして、マークした点についてインパルスハンマで打撃・加振し、周波数応答データを取得する(ステップS102、S103)。本発明では、単なる周波数応答関数ではなく、検査対象となる構造物に特有の振動モードを決定して検査に用いる(ステップS104)。振動モードは、当該構造物の特徴がより明確に現れやすい。次に、各モード図の周波数を決定する(ステップS105)。モードシェープは、加速度/加振力(以後A/Fという。)の虚数項から得る(ステップS106)。A/Fの虚数項から得られるシェープについてダメージインデックスを計算し(ステップS107)、その大きさによって欠陥の有無を判断する手法である。
【選択図】 図17
Description
2 軟質ウレタンフォーム
3 加速度ピックアップ
4 インパルスハンマ
5 増幅器
6 電源
7 アナライザ
8 パソコン
11 検査対象
12 データ図
13 周波数応答関数
14 周波数
15 位置の関数
22 ダメージインデックス
Claims (2)
- 検査対象となるFRP構造物上に一定間隔に設けられた検査点をインパルスハンマで加振し、加速度取得手段からの加速度、および加振力取得手段からの加振力を取得すると共に、それぞれの点における周波数応答関数を取得し、一定の周波数における前記周波数応答関数を前記検査点の位置の関数としたときに、低次の多項式近似曲線から外れる度合いで欠陥の有無を評価するFRP構造物の非破壊検査方法において、
前記周波数応答関数は、共振モード近傍周波数応答関数であることを特徴とするFRP構造物の非破壊検査方法。 - 前記周波数応答関数は、加速度又は変位から得ることを特徴とする請求項1に記載のFRP構造物の非破壊検査方法。
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JP2006292481A true JP2006292481A (ja) | 2006-10-26 |
JP4631515B2 JP4631515B2 (ja) | 2011-02-16 |
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Cited By (8)
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CN104391044A (zh) * | 2014-11-19 | 2015-03-04 | 中国航空工业集团公司沈阳飞机设计研究所 | 一种检测蜂窝结构腐蚀损伤的振动检测方法 |
CN107132279A (zh) * | 2017-05-02 | 2017-09-05 | 长沙理工大学 | 一种基于阵列超声表面波的构件损伤概率成像定位方法 |
EP2263068B1 (fr) * | 2008-04-11 | 2018-10-03 | Anvis SD France SAS | Procede et dispositif pour controler la qualite, particulierement la raideur et la phase, d'une articulation hydro elastique |
KR20190065723A (ko) * | 2017-12-04 | 2019-06-12 | 부경대학교 산학협력단 | 미소 크랙 검사 장치 및 이를 이용한 미소 크랙 검사 방법 |
JP2020003240A (ja) * | 2018-06-26 | 2020-01-09 | 三菱重工業株式会社 | 検査対象物の検査装置及び検査方法 |
JP2020169965A (ja) * | 2019-04-05 | 2020-10-15 | 株式会社Ifg | 多連発パルス電磁力音響診断装置 |
WO2020228099A1 (zh) * | 2019-05-16 | 2020-11-19 | 大连大学 | 一种核电工程结构自激励健康诊断监测数据采集装置 |
CN112710742A (zh) * | 2020-12-22 | 2021-04-27 | 中国航空工业集团公司沈阳飞机设计研究所 | 一种飞机座舱盖骨架玻璃损伤无损检测方法 |
Families Citing this family (2)
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CN103592369B (zh) * | 2013-11-14 | 2016-01-06 | 西安交通大学 | 一种航空发动机盘类零件在位裂纹检测方法 |
CN105784934A (zh) * | 2016-03-09 | 2016-07-20 | 西安交通大学 | 基于频率三线相交法进行复合材料板损伤定位方法及系统 |
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Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2263068B1 (fr) * | 2008-04-11 | 2018-10-03 | Anvis SD France SAS | Procede et dispositif pour controler la qualite, particulierement la raideur et la phase, d'une articulation hydro elastique |
CN104391044A (zh) * | 2014-11-19 | 2015-03-04 | 中国航空工业集团公司沈阳飞机设计研究所 | 一种检测蜂窝结构腐蚀损伤的振动检测方法 |
CN107132279A (zh) * | 2017-05-02 | 2017-09-05 | 长沙理工大学 | 一种基于阵列超声表面波的构件损伤概率成像定位方法 |
CN107132279B (zh) * | 2017-05-02 | 2019-10-25 | 长沙理工大学 | 一种基于阵列超声表面波的构件损伤概率成像定位方法 |
KR20190065723A (ko) * | 2017-12-04 | 2019-06-12 | 부경대학교 산학협력단 | 미소 크랙 검사 장치 및 이를 이용한 미소 크랙 검사 방법 |
KR101997993B1 (ko) * | 2017-12-04 | 2019-10-01 | 부경대학교 산학협력단 | 미소 크랙 검사 장치 및 이를 이용한 미소 크랙 검사 방법 |
JP2020003240A (ja) * | 2018-06-26 | 2020-01-09 | 三菱重工業株式会社 | 検査対象物の検査装置及び検査方法 |
US11579059B2 (en) | 2018-06-26 | 2023-02-14 | Mitsubishi Heavy Industries, Ltd. | Inspection apparatus and inspection method for inspection target |
JP2020169965A (ja) * | 2019-04-05 | 2020-10-15 | 株式会社Ifg | 多連発パルス電磁力音響診断装置 |
WO2020228099A1 (zh) * | 2019-05-16 | 2020-11-19 | 大连大学 | 一种核电工程结构自激励健康诊断监测数据采集装置 |
CN112710742A (zh) * | 2020-12-22 | 2021-04-27 | 中国航空工业集团公司沈阳飞机设计研究所 | 一种飞机座舱盖骨架玻璃损伤无损检测方法 |
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