| 초록 |
This paper deals with the optimization design of plastic gears, which are components of electronic actuators for automobiles. Electronic actuators for automobiles consist of a motor, a reducer, and a controller for controlling the motor. Recently, a conventional steel gear has been replaced by a plastic injection machine. The plastic gear has advantages such as cost, weight, noise reduction, etc. However, there is a problem that the size of the steel gear is increased and the durability is lowered. Therefore, it is necessary to optimize the design of the plastic gear to minimize the disadvantages of the plastic gear, and the safety of the plastic gear should be secured under the maximum operating condition. Structural analysis was performed on the design parameters such as material, module, and thickness of plastic gear to select optimal design parameters under maximum operating conditions. Using the selected design parameters, the stress and the safety factor of the optimally designed plastic gear were confirmed. We will verify the correlation of the analytical model with the future test results and build an analytical model that can efficiently verify the design according to the specification change.
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