Cyclic undulation of the gear tooth surface is one of the important sources of gear noise and vibration. It has been known that vibration caused by this source can appear at the nonmesh harmonic frequency components (ghost components). As there are no relationships between the frequency of this vibration and any gear specifications, the gear noise source is hard to detect. This paper proposes the utilization of the synchronous averaging technique for diagnosis of the source of nonmesh harmonic vibration components on a gear pair, and shows the possibility of using this technique for inspection of tooth surface undulation. The method for practically applying this technique is discussed in detail. Results demonstrated in the form of spectrum showed good agreement with the undulation assessed from precise tooth surface measurement over the whole surface of every tooth. The effect of the direction of the arrangement of cyclic undulation on tooth surface and gear vibration is also discussed in this paper. Finally the limitation to the synchronous averaging technique was discussed with respect to gear ratio.
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e-mail: hhoujoh@pi.titech.ac.jp
e-mail: chanat@ds.pi.titech.ac.jp
e-mail: smatsumu@pi.titech.ac.jp
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March 2007
Technical Papers
Utilization of Synchronous Averaging for Inspection of Tooth Surface Undulations on Gears (Localization of Nonmesh Harmonic Components to Individual Gear)
Haruo Houjoh,
e-mail: hhoujoh@pi.titech.ac.jp
Haruo Houjoh
Professor
Precision and Intelligence Laboratory
, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, Japan
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Chanat Ratanasumawong,
e-mail: chanat@ds.pi.titech.ac.jp
Chanat Ratanasumawong
Graduate Student
Department of Precision Machinery Systems
, Tokyo Institute of Technology, Tokyo, Japan
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Shigeki Matsumura
e-mail: smatsumu@pi.titech.ac.jp
Shigeki Matsumura
Associate Professor
Precision and Intelligence Laboratory
, Tokyo Institute of Technology, Tokyo, Japan
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Haruo Houjoh
Professor
Precision and Intelligence Laboratory
, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, Japane-mail: hhoujoh@pi.titech.ac.jp
Chanat Ratanasumawong
Graduate Student
Department of Precision Machinery Systems
, Tokyo Institute of Technology, Tokyo, Japane-mail: chanat@ds.pi.titech.ac.jp
Shigeki Matsumura
Associate Professor
Precision and Intelligence Laboratory
, Tokyo Institute of Technology, Tokyo, Japane-mail: smatsumu@pi.titech.ac.jp
J. Appl. Mech. Mar 2007, 74(2): 269-278 (10 pages)
Published Online: February 8, 2006
Article history
Received:
November 12, 2004
Revised:
February 8, 2006
Citation
Houjoh, H., Ratanasumawong, C., and Matsumura, S. (February 8, 2006). "Utilization of Synchronous Averaging for Inspection of Tooth Surface Undulations on Gears (Localization of Nonmesh Harmonic Components to Individual Gear)." ASME. J. Appl. Mech. March 2007; 74(2): 269–278. https://doi.org/10.1115/1.2198248
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