Hundreds of piezoelectric ultrasonic motors (PUSMs) have been proposed for scientific
researches and developed for commercial applications in the past decade. They are …

This Second Edition of Mechanical Design and Manufacturing of Electric Motors provides in-
depth knowledge of design methods and developments of electric motors in the context of …

A linear ultrasonic motor (USM) with two piezoelectric stators using the combination of two
third bending vibration modes is proposed in this study, two orthogonal bending modes can …

Reports indicated that impact events accounted for 47% of offshore pipeline failures, which
calls for impact detection and localization for subsea pipelines. In this paper, an innovative …

A linear/rotary ultrasonic motor, which is driven using a friction force, generally requires a
preload mechanism between the slider/rotor and the stator. The preload mechanism is of …

The post-tensioning method, which involves the post-tensioning tendon duct (PTTD), is often
used to reinforce concrete beams. An important procedure of the post-tensioning method is …

This paper presents a novel 2-DOF planar linear ultrasonic motor. The stator of the motor
can be divided as two transducers and two isosceles triangular beams. The bending …

Traveling-wave ultrasonic micromotor is a promising technology for microactuation and
nanopositioning. A special designed annular stator was proposed with the combination of …

A piezoelectric traveling-wave ultrasonic micromotor at the millimeter scale with adjustable
magnetic preloading and precise stepping control is proposed. This micromotor consists of a …

A high-thrust screw-type piezoelectric ultrasonic motor with a three-wavelength exciting
mode is proposed in this paper. The motor mainly includes a stator and a screw output shaft …