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A Method for Thermal Analysis of Spiral Bevel GearsA modeling method for analyzing the three-dimensional thermal behavior of spiral bevel gears has been developed. The model surfaces are generated through application of differential geometry to the manufacturing process for face-milled spiral bevel gears. Contact on the gear surface is found by combining tooth contact analysis with three-dimensional Hertzian theory. The tooth contact analysis provides the principle curvatures and orientations of the two surfaces. This information is then used directly in the Hertzian analysis to find the contact size and maximum pressure. Heat generation during meshing is determined as a function of the applied load, sliding velocity, and coefficient of friction. Each of these factors change as the point of contact changes during meshing. A nonlinear finite element program was used to conduct the heat transfer analysis. This program permitted the time- and position-varying boundary conditions, found in operation, to be applied to a one-tooth model. An example model and analytical results are presented.
Document ID
19940032943
Acquisition Source
Headquarters
Document Type
Conference Paper
Authors
Handschuh, Robert F. (NASA Lewis Research Center Cleveland, OH, United States)
Kicher, Thomas P. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 6, 2013
Publication Date
July 1, 1994
Subject Category
Mechanical Engineering
Report/Patent Number
NAS 1.15:106612
E-8895
ARL-TR-457
NASA-TM-106612
AD-A290190
Meeting Information
Meeting: 1994 International Gearing Conference
Location: Newcastle Upon Tyne
Country: United Kingdom
Start Date: September 7, 1994
End Date: September 9, 1994
Sponsors: British Gear Assn., UK National Gear Metrology Lab., Univ. of Newcastle Upon Tyne
Accession Number
94N37451
Funding Number(s)
PROJECT: RTOP 505-62-36
PROJECT: DA PROJ. 1L1-61102-AH-45
Distribution Limits
Public
Copyright
Public Use Permitted.

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