On the Bending and Surface Fatigues of an Engaging Spur Gear Pair

The dynamic model of an engaging spur gear pair is used to study the bending and surface fatigues. The parameters of the dynamic model include mesh stiffness, frictional coefficient, and profile-shifted factor, etc. The standard, ANSI/AGMA 2008-B88, provides the values of the endurance limits related the bending and surface fatigues. According to the standard, the endurance limits are function of tooth surface hardness. A computational algorithm is developed to simulate the bending and tooth surface stresses. The results present how the parameters, such as tooth number, profile- shifted factor, and tooth surface hardness, influence the break and surface failures of a spur gear pair.

[1]  R. K. Carroll,et al.  Dimensionless Solution to the Optimal Design of Spur Gear Sets , 1989 .

[2]  Donald R. Houser,et al.  Mathematical models used in gear dynamics—A review , 1988 .

[3]  D. C. H. Yang,et al.  A Rotary Model for Spur Gear Dynamics , 1985 .

[4]  A. Seireg,et al.  An Optimum Design Algorithm for Gear Systems Incorporating Surface Temperature , 1985 .

[5]  K. L. Wang,et al.  A Numerical Solution to the Dynamic Load, Film Thickness, and Surface Temperatures in Spur Gears, Part I: Analysis , 1981 .

[6]  R. N. Green,et al.  Determination of pinion-cutter offsets required to produce nonstandard spur gears with teeth of equal strength , 1980 .

[7]  Jiro Ishikawa,et al.  Surface Temperature and Scoring Resistance of Heavy-Duty Gears , 1974 .

[8]  D. C. H. Yang,et al.  Hertzian damping, tooth friction and bending elasticity in gear impact dynamics , 1987 .

[9]  M. A. Sahir Arikan,et al.  Dynamic Load and Root Stress Analysis of Spur Gears , 1989 .

[10]  Fujio Hirano,et al.  Dynamic Behavior of Heavy-Loaded Spur Gears , 1974 .

[11]  A. Seireg,et al.  Optimum Design of Gear Systems for Surface Durability , 1968 .

[12]  F. R. E. Crossley,et al.  Digital Simulation of Impact Phenomenon in Spur Gear Systems , 1977 .

[13]  John J. Coy,et al.  Dynamic Capacity and Surface Fatigue Life for Spur and Helical Gears , 1976 .

[14]  John J. Coy,et al.  Optimal tooth numbers for compact standard spur gear sets , 1982 .

[15]  W. L. Moore.  Low-Cycle Fatigue and Ultimate Strength Related to Gear Design , 1979 .

[16]  R. K. Carroll,et al.  Optimal Design of Compact Spur Gear Sets , 1984 .

[17]  H. H Mabie,et al.  Determination of hob offset required to generate nonstandard spur gears with teeth of equal strength , 1983 .

[18]  Charles F. Reinholtz,et al.  Design of spur gears generated with pinion cutters , 1990 .