Harold H. Coe
Published: 1991
Total Pages:
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SPUROPT, a computer program developed for optimizing spur gear designs, was updated by installing a new subroutine that uses AGMA 908-B89 standards to calculate the J -factor for determining tooth-bending stress. The updated SPUROPT program was then used to optimize a spur gear set for maximum fatigue life, minimum dynamic load, or minimum weight. All calculations were made with constraints on as many as 13 parameters by using three design variables: the number of teeth, diametral pitch, and tooth-face width. Results depended largely on constraint values. When the limiting bending stress was set at a high value, the optimal solution was the highest allowable number of teeth. When the allowable bending stress was lowered, the optimal solution moved toward the fewest number of teeth permitted.