Endoscopes for industrial and medical fields are expected to have multi degree-of-freedom (DOF) motions. A multi-DOF ultrasonic motor we developed consists of a spherical rotor and a bar-shaped stator, and the rotor rotates around three perpendicular axes using three natural vibration modes of the stator. In this study, a multi-DOF unilateral master-slave system for active endoscope using the m...

This research intends to investigate the effect and potential of ultrasonic vibration tools for drilling glass-fiber-reinforced plastics (GFRPs), especially with aim minimizing thrust force. As an important parameter characterize intensity, amplitude has a significant on force in ultrasonic-vibration-assisted (UVD) GFRPs. It been observed that also influences amplitude, which may eventually res...

Ultrasonic scalers are used in dentistry to remove calculus and other contaminants from teeth. One mechanism which may assist in the cleaning is cavitation generated in cooling water around the scaler. The vibratory motion of three designs of scaler tip in a water bath has been characterised by laser vibrometry, and compared with the spatial distribution of cavitation around the scaler tips obs...

Ultrasonic force microscopy (UFM) can be used to image the distribution of elastic modulus up to several tens of GPa, which is not possible by the force modulation mode using a soft cantilever of spring constant less than 1 N m‘. It was shown that by careful design of a piezoelectric transducer, together with a sample with small friction force, deflection vibration of the cantilever without tor...

Ultrasonic-assisted grinding (UAG) is widely used in the manufacture of hard and brittle materials. However, process removal mechanism was never elucidated its potential yet to be fully exploited. In this paper, material analyzed by ultrasonic-assisted scratching. Three distinct surfaces (S1, S2, S3) were selected on basis braided laminated structure fiber bundles. The scratching experiment car...

Icings on moving machinery, such as wind turbines and aircraft wings, degrade their performance safety. Ultrasonic vibration is considered one of the deicing methods. In this research, simulations experiments are carried out to explore effect ultrasonic adhesive characteristic ice aluminum alloy plates. Harmonic response analyses conducted analyze changing distributions shear stresses at interf...