title: Study on the vibration displacement distribution of a circular ultrasonic motor stator.
abstract: In this paper is presented a theoretical consideration on the stator's displacement distribution, which is one of the most important problems in defining the structure of a circular ultrasonic motor stator. The results are compared with ones obtained utilizing a holographic interferometer, a laser vibrometer and FEM (finite element method) simulation. They are in good agreement with each other.
authors: Department of Physics, Kim Il Sung University, Pyongyang, Democratic People's Republic of Korea.
authors: Chol-Su
authors: CS
authors: Ri
authors: Department of Physics, Kim Il Sung University, Pyongyang, Democratic People's Republic of Korea.
authors: Myong-Jin
authors: MJ
authors: Kim
authors: Department of Physics, Kim Il Sung University, Pyongyang, Democratic People's Republic of Korea.
authors: Chol-Su
authors: CS
authors: Kim
authors: Department of Physics, Kim Il Sung University, Pyongyang, Democratic People's Republic of Korea.
authors: Song-Jin
authors: SJ
authors: Im
keywords: Circular stator; Ultrasonic motor; Vibration displacement