抄録
The purpose of the research is a noise reduction of stepping motor. The stepping motor which rotates every step can simply realize position control, and it has the characteristics of small size and high torque. For, high performance equipment, small size and low cost to meet the requirements it was used in a very wide range of applications. However, when driving, a big noise is generated. In this research, it was aimed to decrease the noise by investigating, and improving the cause of the noise by the sound and the vibration analysis. And production finite element model is tried structural modification of entire stepping motor.