Finite-element analysis of the rotor/stator contact in a ring-type ultrasonic motor

Takashi Maeno, Takayuki Tsukimoto, Akira Miyake

Research output: Contribution to journalArticle

169 Citations (Scopus)

Abstract

A way to understand mechanical characteristics of an ultrasonic motor is presented. First, the vibration mode of a stator is calculated using a finite-element method (FEM) code. The path of the elliptic motion of the stator's teeth is obtained. The computed vibration mode at the surface of the stator is compared with that measured by an electrooptical displacement transducer. Next, the contact condition of the rotor/stator is calculated. The displacement and velocity of the rotor/stator, the distortion of the stick/slip area, the rotational speed of the rotor, and the friction loss of the motor are obtained. The calculated rotor displacement and torque-rotational speed curve correspond closely to the experimentally measured ones. The internal loss of the rotor/stator and the loss of the supporting felt are measured. The total loss of these losses and the calculated friction loss agree with the measured total loss. The calculated and the measured efficiency of the motor also agree.

Original languageEnglish
Pages (from-to)668-674
Number of pages7
JournalIEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Volume39
Issue number6
DOIs
Publication statusPublished - 1992 Nov
Externally publishedYes

Fingerprint

stators
Stators
rotors
Rotors
ultrasonics
Ultrasonics
Finite element method
rings
vibration mode
friction
Friction
Stick-slip
teeth
Vibrations (mechanical)
torque
Transducers
finite element method
transducers
slip
Torque

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Acoustics and Ultrasonics

Cite this

Finite-element analysis of the rotor/stator contact in a ring-type ultrasonic motor. / Maeno, Takashi; Tsukimoto, Takayuki; Miyake, Akira.

In: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, Vol. 39, No. 6, 11.1992, p. 668-674.

Research output: Contribution to journalArticle

@article{34ed5ff1a3224dd197e24f58f4e2eb00,
title = "Finite-element analysis of the rotor/stator contact in a ring-type ultrasonic motor",
abstract = "A way to understand mechanical characteristics of an ultrasonic motor is presented. First, the vibration mode of a stator is calculated using a finite-element method (FEM) code. The path of the elliptic motion of the stator's teeth is obtained. The computed vibration mode at the surface of the stator is compared with that measured by an electrooptical displacement transducer. Next, the contact condition of the rotor/stator is calculated. The displacement and velocity of the rotor/stator, the distortion of the stick/slip area, the rotational speed of the rotor, and the friction loss of the motor are obtained. The calculated rotor displacement and torque-rotational speed curve correspond closely to the experimentally measured ones. The internal loss of the rotor/stator and the loss of the supporting felt are measured. The total loss of these losses and the calculated friction loss agree with the measured total loss. The calculated and the measured efficiency of the motor also agree.",
author = "Takashi Maeno and Takayuki Tsukimoto and Akira Miyake",
year = "1992",
month = "11",
doi = "10.1109/58.165549",
language = "English",
volume = "39",
pages = "668--674",
journal = "IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control",
issn = "0885-3010",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "6",

}

TY - JOUR

T1 - Finite-element analysis of the rotor/stator contact in a ring-type ultrasonic motor

AU - Maeno, Takashi

AU - Tsukimoto, Takayuki

AU - Miyake, Akira

PY - 1992/11

Y1 - 1992/11

N2 - A way to understand mechanical characteristics of an ultrasonic motor is presented. First, the vibration mode of a stator is calculated using a finite-element method (FEM) code. The path of the elliptic motion of the stator's teeth is obtained. The computed vibration mode at the surface of the stator is compared with that measured by an electrooptical displacement transducer. Next, the contact condition of the rotor/stator is calculated. The displacement and velocity of the rotor/stator, the distortion of the stick/slip area, the rotational speed of the rotor, and the friction loss of the motor are obtained. The calculated rotor displacement and torque-rotational speed curve correspond closely to the experimentally measured ones. The internal loss of the rotor/stator and the loss of the supporting felt are measured. The total loss of these losses and the calculated friction loss agree with the measured total loss. The calculated and the measured efficiency of the motor also agree.

AB - A way to understand mechanical characteristics of an ultrasonic motor is presented. First, the vibration mode of a stator is calculated using a finite-element method (FEM) code. The path of the elliptic motion of the stator's teeth is obtained. The computed vibration mode at the surface of the stator is compared with that measured by an electrooptical displacement transducer. Next, the contact condition of the rotor/stator is calculated. The displacement and velocity of the rotor/stator, the distortion of the stick/slip area, the rotational speed of the rotor, and the friction loss of the motor are obtained. The calculated rotor displacement and torque-rotational speed curve correspond closely to the experimentally measured ones. The internal loss of the rotor/stator and the loss of the supporting felt are measured. The total loss of these losses and the calculated friction loss agree with the measured total loss. The calculated and the measured efficiency of the motor also agree.

UR - http://www.scopus.com/inward/record.url?scp=0026943008&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0026943008&partnerID=8YFLogxK

U2 - 10.1109/58.165549

DO - 10.1109/58.165549

M3 - Article

AN - SCOPUS:0026943008

VL - 39

SP - 668

EP - 674

JO - IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control

JF - IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control

SN - 0885-3010

IS - 6

ER -