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| Presentation | 2010-12-10 10:25 Structural Diagnosis using Cumulative Harmonic Analysis (CHA) Yoshinori Takahashi (TMCIT), Satoru Gotoh, Mikio Tohyama (Waseda Univ.)  EA2010-98 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | This paper describes a cumulative harmonic analysis (CHA) that replaces the stepwise time window function of Berman and Fincham ’s cumulative spectral analysis (CSA) with a spectral accumulation function, thereby enabling a new structural health monitoring method. CHA estimates and visualizes system damping conditions without the need of transient-vibration records. The damping conditions is closely related to the spectral distribution around the dominant spectral peaks due to structural resonance. This type of spectral distribution can be visualized with CHA even within a short interval of random vibration samples. The effect of CHA on monitoring with respect to the damping conditions was reported by the present authors in a previous study. In this study, the authors confirmed the usefulness of CHA for structural condition monitoring by conducting scale model experiments. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | cumulative harmonic analysis / structural health monitoring / machine diagnostics / transfer function / acoustic signal processing / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 110, no. 331, EA2010-98, pp. 7-12, Dec. 2010. | |
| Paper # | EA2010-98 | |
| Date of Issue | 2010-12-03 (EA) | |
| ISSN | Print edition: ISSN 0913-5685 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) | |
| Download PDF | EA2010-98 |
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| Conference Information | |
| Committee | EA |
| Conference Date | 2010-12-10 - 2010-12-10 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Univ. of Tsukuba |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | General Topics |
| Paper Information | |
| Registration To | EA |
| Conference Code | 2010-12-EA |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Structural Diagnosis using Cumulative Harmonic Analysis (CHA) |
| Sub Title (in English) | |
| Keyword(1) | cumulative harmonic analysis |
| Keyword(2) | structural health monitoring |
| Keyword(3) | machine diagnostics |
| Keyword(4) | transfer function |
| Keyword(5) | acoustic signal processing |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Yoshinori Takahashi |
| 1st Author's Affiliation | Tokyo Metropolitan College of Industrial Technology (TMCIT) |
| 2nd Author's Name | Satoru Gotoh |
| 2nd Author's Affiliation | Waseda University (Waseda Univ.) |
| 3rd Author's Name | Mikio Tohyama |
| 3rd Author's Affiliation | Waseda University (Waseda Univ.) |
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| Speaker | Author-1 |
| Date Time | 2010-12-10 10:25:00 |
| Presentation Time | 25 minutes |
| Registration for | EA |
| Paper # | EA2010-98 |
| Volume (vol) | vol.110 |
| Number (no) | no.331 |
| Page | pp.7-12 |
| #Pages | 6 |
| Date of Issue | 2010-12-03 (EA) |
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