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A multi-purpose method for analysis of spur gear tooth loadingA large digitized approach was developed for the static and dynamic load analysis of spur gearing. An iterative procedure was used to calculate directly the "variable-variable" gear mesh stiffness as a function of transmitted load, gear tooth profile errors, gear tooth deflections and gear hub torsional deformation, and position of contacting profile points. The developed approach can be used to analyze the loads, Hertz stresses, and PV for the normal and high contrast ratio gearing, presently the modeling is limited to the condition that for a given gear all teeth have identical spacing and profiles (with or without surface imperfections). Certain types of simulated sinusoidal profile errors and pitting can cause interruptions of the gear mesh stiffness function and, thus, increase the dynamic loads in spur gearing. In addition, a finite element stress and mesh subprogram was developed for future introduction into the main program for calculating the gear tooth bending stresses under dynamic loads.
Document ID
19820002528
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Kasuba, R. (Cleveland State Univ. OH, United States)
Evans, J. W. (Cleveland State Univ. OH, United States)
August, R. (Cleveland State Univ. OH, United States)
Frater, J. L. (Cleveland State Univ. OH, United States)
Date Acquired
September 4, 2013
Publication Date
October 1, 1981
Subject Category
Mechanical Engineering
Report/Patent Number
NASA-CR-165163
Accession Number
82N10401
Funding Number(s)
CONTRACT_GRANT: NAS3-18547
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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