Analysis of dynamic capacity of low-contact-ratio spur gears using Lundberg-Palmgren theory
暂无分享,去创建一个
A concise mathematical model is developed for surface fatigue life of low-contact-ratio spur gears. The expected fatigue life of the pinion, gear, or gear sets may be calculated from the model. An equation for the dynamic capacity of the gear set was also derived in terms of the transmitted tangential tooth load which will give a 10-percent fatigue life of one million pinion revolutions. The theoretical life was compared with experimental data for a set of VAR AISI 9310 gears operating at a Hertz stress of 1.71X10 to the 9th power newtons per square meter (248,000 psi) and 10 000 revolutions per minute. Good agreement was obtained between the experimental and theoretical surface fatigue life of the gears.
[1] A. Seireg,et al. Optimum Design of Gear Systems for Surface Durability , 1968 .
[2] V. N. Borsoff. On the Mechanism of Gear Lubrication , 1959 .
[3] Sigmund J. Amster,et al. The Statistical Treatment of Fatigue Experiments , 1964 .
[4] John B. Seabrook,et al. Results of a Fifteen-Year Program of Flexural Fatigue Testing of Gear Teeth , 1964 .
[5] D. Dowson,et al. Elasto-hydrodynamic lubrication , 1977 .