Diagnosis of Extremely Low-Speed Rolling-Element Bearing Using AE Envelope Waveform
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- Sako Takashi
- Waseda University
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- Yoshie Osamu
- Waseda University
Bibliographic Information
- Other Title
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- AEエンベロープ波形を用いた超低速転がり軸受診断法
- AE エンベロープ ハケイ オ モチイタ チョウテイソク コロガリ ジクウケ シンダンホウ
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Abstract
Most low-speed rotating equipments are large and important. Therefore, a plant will suffer substantial losses if the operation of such equipments stops because of any damage to their rolling-element bearings. This paper discusses a diagnostic method for rolling-element bearings in rotating equipments with extremely low speeds of 100rpm or less and further, it proposes a diagnostic method based on acoustic emission (AE) envelope waveform of 100kHz to 1MHz frequency. Abnormality diagnosis was performed even for a rotation number of 1rpm by improving the signal-to-noise (S/N) ratio by carrying out further amplification after envelope waveform processing and AE waveform amplification. Furthermore, a method for removing electric noises and an abnormality-diagnosis method based on an event-counting method in the case of extremely low-speed rotation are proposed. Further, we are manufacturing a diagnostic instrument based on this diagnostic method, and we are performing abnormality diagnosis and monitoring of on-site conditions.
Journal
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- IEEJ Transactions on Industry Applications
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IEEJ Transactions on Industry Applications 132 (4), 501-509, 2012
The Institute of Electrical Engineers of Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390282679635334912
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- NII Article ID
- 10030532586
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- NII Book ID
- AN10012320
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- BIBCODE
- 2012IJTIA.132..501S
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- ISSN
- 13488163
- 09136339
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- NDL BIB ID
- 023656384
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed