Vibration Presentation using a DC motor

Abstract

Several kinds of vibration actuators were developed and widely used for haptic feedback and for simulating tactile experience. However, these actuators have certain design challenges, such as resonance via the spring attached to the vibration mass, and limited acceleration amplitude at low frequency because of the limited travel distance of the mass. In our study, we propose a new vibrotactile presentation method using the rotational motor's counterforce that occurs during acceleration or deceleration. This paper describes the effectiveness of a DC motor for high fidelity vibration and pseudo force presentation, and our design concept of a vibration actuator using a DC motor.