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TECHNICAL PAPERS

The FEM Analysis of Dry Contact in the Variable Torque Slipping Clutch With Skewed Rollers by Using Weighted Simplex and BFGS Methods

[+] Author and Article Information
Ming Feng, Kyosuke Ono

Department of Mechanical Engineering and Science, Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro-ku, Tokyo, 152-8552, Japan

Kenji Mimura

MIM Engineering Company Ltd., 2-12-1 Kirigaoka Midori-ku, Yokohama, 226-0016, Japan

J. Mech. Des 125(1), 186-199 (Mar 21, 2003) (14 pages) doi:10.1115/1.1543979 History: Received November 01, 2001; Revised July 01, 2002; Online March 21, 2003
Copyright © 2003 by ASME
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References

Figures

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Configuration and geometrical parameters of the slipping clutch (a) Configuration of the slipping clutch (Cross Skewing) (b) Geometrical parameters and coordinate systems
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Contact model at tangency of the roller and the races (a) Internal contact (b) External contact
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Types of the corrections of the roller generator (a) Dub-off edge (b) Crown edge (c) Full crown with one arc
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Geometry of the crowned roller
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Coordinates at and near tangency of the roller and the races (a) Coordinate systems at Pi and Po (b) Coordinates near Pi and Po
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Kinematical relationship at a tangency of the roller and the races
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Attitudes of the roller
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FEM based discretization and the local and global coordinate systems
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Forces acting upon the roller
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Relationship between the equivalent frictional coefficients and the angular velocity ratios at the position of z̄(c)=0
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Pressures distributions and contours (Dub-off edge roller)
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Combined principal curvatures
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Comparison between the central pressure distributions of the various types of the roller generator corrections (a) Internal contact (b) External contact
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Comparison between the pressure contours (contact footprints) of the various types of the roller generator corrections (a) Crown edge roller (b) Full crown with one arc roller
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Central pressure distributions under the condition of the same applied axial forces (a) Internal contact of Σ=±35° (b) Internal contact of Σ=±55°
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Central pressure distributions under the condition of the same resistant torque (a) Internal contact of Σ=±35° (b) Internal contact of Σ=±55°

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