Design and FEA of Linear Ultrasonic Motor Using Two Langevin Type Vibrator

2개의 란쥬반형 진동자를 이용한 선형 초음파 모터의 설계 및 FEA해석

  • Published : 2002.07.08

Abstract

Transducer for linear ultrasonic motor with symmetric and anti-symmetric modes was studied. The transducer was composed of two Langevin-type vibrators. In order to excite two vibration modes, Two Langevin-type vibrators must have 90-degree phase difference with each other. As result, tip of transducers moves in elliptical motion. In this paper, vibration shape of transducer was simulated and The resonant frequency and maximum displacement were calculated using the FEA (Finite Element Analysis).

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