Anti-vibration and traction control of rotary sliding systems by orthogonal rotation providing transverse sliding

Abstract Rotary sliding systems such as clutches require smooth motion without any unpredicted vibrations, such as friction-induced vibration. Friction-induced vibration, which is called judder in clutches, sometimes occurs, especially during clutch engagement. To suppress the friction-induced vibration in rotary sliding systems, a unique method in which the direction of the friction force is forcibly changed by orthogonal rotation of a roller providing transverse sliding is proposed. The effectiveness of the method was examined experimentally using a custom-built apparatus. The results show that the orthogonal rotation suppresses the friction-induced vibration even when the friction force exhibits velocity-weakening characteristics. In addition, the effective friction force, which can be regarded as the traction force, can be controlled by varying the orthogonal rotation.