Modeling and Detection of Localized Tooth Defects in Geared Systems

[+] Author and Article Information
M. El Badaoui, V. Cahouet, F. Guillet, J. Danière

LASPI-IUT de Roanne 20, Avenue de Paris 42 334 Roanne, France

P. Velex

Laboratoire de Mécanique des Contacts - UMR CNRS 5514 INSA de Lyon, Ba⁁t. 113, 20 Avenue Albert Einstein 69 621 Villeurbanne Cedex, France

J. Mech. Des 123(3), 422-430 (Feb 01, 1999) (9 pages) doi:10.1115/1.1349420 History: Received February 01, 1999
Copyright © 2001 by ASME
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Grahic Jump Location
Gear model (degrees of freedom are represented on gear only)
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Defect modeling and characteristic functions
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Rectangular windowing function and power cepstrum of its second-order time derivative
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Schematic representation of the geared system
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Contour line plots of d(t) for various defect depths, widths and positions. Spur gears with long and short reliefs. (Pinion torque: 933 daN.m, pinion speed: 1000 rpm)
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Contour line plots of d(t) for various defect depths, widths and positions. Helical gears with long and short reliefs. (Pinion torque: 933 daN.m, pinion speed: 1000 rpm)
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Time signals and M.C.I. of experimental and simulated accelerations (Spur gears) Pinion torque: 200 daN.m, Pinion speed: 1000 rpm
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Photographs of pinion tooth flanks (day 11 & 12) and tooth defect identification
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Time signals and M.C.I curves of measured and simulated accelerations- Day 12-Defects characteristics are: Tooth #16, Da=0.5, L=0.12, P=80 μm, xc=0.5T1*T2*,zc=0.2.5b Tooth #2, Da=0.2,L=0.044, P=26 μm, xc=0.4T1T2,zc=−0.3b Pinion Torque: 200 daN.m, pinion speed: 1000 rpm



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