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Contact and Bending Durability Calculation for Spiral-Bevel GearsThe objective of this project is to extend the capabilities of the gear contact analysis solver Calyx, and associated packages Transmission3D, HypoidFaceMilled, HypoidFaceHobbed. A calculation process for the surface durability was implemented using the Dowson-Higginson correlation for fluid film thickness. Comparisons to failure data from NASA's Spiral Bevel Gear Fatigue rig were carried out. A bending fatigue calculation has been implemented that allows the use of the stress-life calculation at each individual fillet point. The gears in the NASA test rig did not exhibit any bending fatigue failure, so the bending fatigue calculations are presented in this report by using significantly lowered strength numbers.
Document ID
20160008393
Document Type
Contractor Report (CR)
Authors
Vijayakar, Sandeep (Advanced Numerical Solutions Hilliard, OH, United States)
Date Acquired
July 1, 2016
Publication Date
June 1, 2016
Subject Category
Mechanical Engineering
Report/Patent Number
GRC-E-DAA-TN31732
E-19235
NASA/CR-2016-219112
Funding Number(s)
WBS: WBS 664817.02.03.02.03.02
CONTRACT_GRANT: NNC15QA19P
Distribution Limits
Public
Copyright
Public Use Permitted.
Keywords
life
durability
spiral bevel gears

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