Implementation of a Finite Element Model for Gear Stress Analysis Based on Tie-Surface Constraints and Its Validation Through the Hertz's Theory
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Ingeniería MecánicaPatrocinadores
The authors express their deep gratitude to the Spanish Ministry of Education, Culture, and Sport, for the financial support received through the scholarship Ref. PRX16/00416 from the Program of Mobility Stays for Senior Professors and Researchers at Foreign Centers for High Level Education and Research, in the frame of the Spanish State Program for Scientific and Technical Research and Innovation 2013-2016.Fecha de publicación
2018Editorial
American Society of Mechanical Engineers (ASME)Cita bibliográfica
Gonzalez-Perez, I., and Fuentes-Aznar, A. Implementation of a Finite Element Model for Gear Stress Analysis Based on Tie-Surface Constraints and Its Validation Through the Hertz's Theory. ASME. J. Mech. Des. February 2018; 140(2): 023301. https://doi.org/10.1115/1.4038301Revisión por pares
siPalabras clave
Gear stress analysisFinite element method
Resumen
A new finite element model for stress analysis of gear drives is proposed. Tie-surface constraints are applied at
each tooth of the gear model to obtain meshes that can be independently defined: a finer mesh at contact surfaces
and fillet and a coarser mesh in the remaining part of the tooth. Tie-surface constraints are also applied for the
connection of several teeth in the model. The model is validated by application of the Hertz’s theory in a spiral
bevel gear drive with localized bearing contact and by observation of convergency of contact and bending stresses.
Maximum contact pressure, maximum Mises stress, maximum Tresca stress, maximum major principal stress, and
loaded transmission errors are evaluated along two cycles of meshing. The effects of the boundary conditions that
models with three, five, seven, and all the teeth of the gear drive, provide on the above mentioned variables are
discussed. Several numerical examples are presented.
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