06-09-2017, 01:35 PM
The finite element analysis of straight gears is performed to determine the maximum contact stress by ANSYS 14.5. We found that the results of the Hertz equation and the finite element analysis are comparable. From the deformation pattern of steel and gray cast iron, it could be concluded that the difference between the maximum steel values and the gray deformation of the CI gear is much lower. The results of the simulation have a good agreement with the theoretical results, implying that the model is correct. This study provides a solid foundation for future studies on contact stresses. The model applies to FEA ANSYS commercial software.
The gears are toothed elements that transmit power / movement between two axes by gear without sliding and the power is usually transferred in such a way that the speed ratio remains constant. In any pair of gears, the smallest is called the pinion and the largest is called the immaterial gear from which the other is driving. When the pinion is the actuator, it results in a lowering drive in which the output speed decreases and the torque increases. On the other hand, when the gear is the actuator, it results in a stepped drive in which the output speed increases and the torque decreases. Gears are classified as gears of ram, helical, double helix, bevel, worm and spiral. The contact stress and fatigue analysis of both the transmission of helical gears and helical gears are examined in this research and it will be useful for other researchers to improve the behavior of gears in various aspects.
The gears are toothed elements that transmit power / movement between two axes by gear without sliding and the power is usually transferred in such a way that the speed ratio remains constant. In any pair of gears, the smallest is called the pinion and the largest is called the immaterial gear from which the other is driving. When the pinion is the actuator, it results in a lowering drive in which the output speed decreases and the torque increases. On the other hand, when the gear is the actuator, it results in a stepped drive in which the output speed increases and the torque decreases. Gears are classified as gears of ram, helical, double helix, bevel, worm and spiral. The contact stress and fatigue analysis of both the transmission of helical gears and helical gears are examined in this research and it will be useful for other researchers to improve the behavior of gears in various aspects.