Title :
P5E-1 Motion Analysis of the Surface Particle of a Coiled Waveguide Due to the Flexural Wave
Author :
Xie, Shangping ; Tanabe, Masayuki ; Tagawa, Norio ; Moriya, Tadashi
Author_Institution :
Tokyo Metropolitan Univ., Tokyo
Abstract :
A traveling-wave-type miniature ultrasonic motor has been developed using a helical coiled waveguide as a stator, and it has been applied to an IVUS probe. In this motor, the elliptical motion of the surface particle due to the flexural ultrasonic waves rotates the rotor, which can be placed adjacently inside or outside the stator, via the frictional force. However, the fact that the rotational direction of the outer rotor is reverse to that of the inner rotor at low frequencies of the flexural wave cannot be explained theoretically. In this study, the above surface particle motion is investigated through FEM simulations, and the principle of the above-mentioned rotational direction is clarified.
Keywords :
finite element analysis; friction; helical waveguides; probes; ultrasonic motors; FEM simulation; IVUS probe; elliptical motion; flexural ultrasonic waves; frictional force; helical coiled waveguide; surface particle motion analysis; traveling-wave-type miniature ultrasonic motor; Frequency; Modeling; Motion analysis; Probes; Rotors; Stators; Surface waves; Ultrasonic imaging; Waveguide components; Wire;
Conference_Titel :
Ultrasonics Symposium, 2007. IEEE
Conference_Location :
New York, NY
Print_ISBN :
978-1-4244-1384-3
Electronic_ISBN :
1051-0117
DOI :
10.1109/ULTSYM.2007.574