Easy set-up and in situ automatic gear diagnostic system using only laser reflection
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- TANAKA Eiichirou
- Graduate School of Science and Engineering, Saitama University
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- NAKAJIMA Keyaki
- Graduate School of Engineering and Science, Shibaura Institute of Technology
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- OKABE Kazunari
- MHI Sagami High-tech, Ltd.
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- TAKEBE Hitoshi
- Mitsubishi Heavy Industries, Ltd.
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- NAGAMURA Kazuteru
- Graduate School of Engineering, Hiroshima University
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- IKEJO Kiyotaka
- Graduate School of Engineering, Hiroshima University
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- HASHIMURA Shinji
- Graduate School of Engineering and Science, Shibaura Institute of Technology
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- MURAMATSU Keiichi
- Graduate School of Science and Engineering, Saitama University
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- WATANUKI Keiichi
- Graduate School of Science and Engineering, Saitama University
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- NEMOTO Ryozo
- Tokyo Metropolitan College of Industrial Technology
抄録
<p>We developed a new method that can diagnose damage on a gear tooth surface using a laser beam without a rotary encoder. The method procedure is as follows: 1) The tooth bottom, the tooth tip and their two median values are detected using the differential values of the laser reflection data. 2) The gear rotation speed is calculated with these four positions, and interpolated according to the rotation fluctuation. 3) Using the calculated gear rotation speed, the measured data can be converted to the corresponding gear rotation angles. Thus we can diagnose the damage of the gear tooth surface precisely and can easily set up the experimental measurements without being influenced by rotational fluctuation. To confirm the validity of the method, we conducted the diagnosis experiment and we created contour maps to show the diagnosis accuracy variation according to the fluctuations of the amplitude and cycle. Based on these maps, we found that the diagnosis accuracy of the damage size is the same irrespective of the presence or absence of a rotary encoder. The diagnosis accuracy of the damage location without using a rotary encoder is lower than the result obtained using a rotary encoder because we assumed that the detection of the damage start point is delayed using this new method. Furthermore, we defined the limit using the conditions of this method from the sampling theorem; the validity of this definition could also be confirmed from the contour map.</p>
収録刊行物
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- Journal of Advanced Mechanical Design, Systems, and Manufacturing
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Journal of Advanced Mechanical Design, Systems, and Manufacturing 10 (4), JAMDSM0059-JAMDSM0059, 2016
一般社団法人 日本機械学会
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詳細情報
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- CRID
- 1390001205271929472
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- NII論文ID
- 130005255824
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- ISSN
- 18813054
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可