Paper Abstract and Keywords |
Presentation |
2020-12-14 15:15
Non-contact bolt loosening detection by remotely exciting a piezoelectric element bonded to a bolt Kazuhiko Hasebe, Yuji Wada, Kentaro Nakamura (Tokyo Tech) US2020-53 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Regular inspection of bolts is important for maintaining structures, and a simple inspection method is required. A non-contact inspection method is not only easy-to-use but also particularly useful for inspection in places where it is difficult to approach, such as high places. In this research, we propose a non-contact inspection method to measure the axial force of a bolt by remotely exciting a piezoelectric element and a coil embedded to the head of the bolt. Looseness of the bolt can be detected through magnetic coupling by simply bringing an inspection device close to the bolt. We made a prototype bolt and confirmed that the resonance frequency of the bolt, which changes due to the loosening of the bolt, can be measured remotely via coils. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Bolt / Piezoelectric element / Resonance / Non-contact / Remote excitation / / / |
Reference Info. |
IEICE Tech. Rep., vol. 120, no. 295, US2020-53, pp. 18-23, Dec. 2020. |
Paper # |
US2020-53 |
Date of Issue |
2020-12-07 (US) |
ISSN |
Online edition: ISSN 2432-6380 |
Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
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US2020-53 |
Conference Information |
Committee |
US |
Conference Date |
2020-12-14 - 2020-12-14 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Online |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
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Paper Information |
Registration To |
US |
Conference Code |
2020-12-US |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Non-contact bolt loosening detection by remotely exciting a piezoelectric element bonded to a bolt |
Sub Title (in English) |
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Bolt |
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Piezoelectric element |
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Resonance |
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Non-contact |
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Remote excitation |
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1st Author's Name |
Kazuhiko Hasebe |
1st Author's Affiliation |
Tokyo Institute of Technology (Tokyo Tech) |
2nd Author's Name |
Yuji Wada |
2nd Author's Affiliation |
Tokyo Institute of Technology (Tokyo Tech) |
3rd Author's Name |
Kentaro Nakamura |
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Tokyo Institute of Technology (Tokyo Tech) |
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Speaker |
Author-1 |
Date Time |
2020-12-14 15:15:00 |
Presentation Time |
25 minutes |
Registration for |
US |
Paper # |
US2020-53 |
Volume (vol) |
vol.120 |
Number (no) |
no.295 |
Page |
pp.18-23 |
#Pages |
6 |
Date of Issue |
2020-12-07 (US) |