A study on temperature dependence of an ultrasonic motor for cryogenic environment

Masahiro Nakazono, Takefumi Kanda, Daisuke Yamaguchi, Koichi Suzumori, Yuya Noguchi

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

In this study, we have examined the temperature dependence of an ultrasonic motor for a cryogenic environment. When we use an ultrasonic motor at low temperatures, thermal stress is induced at the ultrasonic transducer owing to the difference in temperature. Thus, the preload for the transducer needs to be regulated for a cryogenic environment. By finite element method (FEM) analysis, we have simulated the thermal stress at piezoelectric elements of the transducer. We have designed the transducer consisting of a body and a nut made of SUS304, and a bolt made of titanium. We have fabricated and evaluated the transducer at temperatures from 4.5 to 293 K. To evaluate the temperature dependence of the relationship between the preload and the thermal stress, we have measured the clamping torque and admittance. The optimal clamping torque shows a low-temperature dependence from 4.5 to 293 K. We have also evaluated the performance of an ultrasonic motor of the transducer. The ultrasonic motor can be driven at temperatures from 4.5 to 293K without the regulation of the preload of the transducer.

Original languageEnglish
Article number07HE15
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume54
Issue number7
DOIs
Publication statusPublished - Jul 1 2015

Fingerprint

Cryogenics
cryogenics
transducers
ultrasonics
Ultrasonics
Transducers
temperature dependence
thermal stresses
Thermal stress
Temperature
torque
Torque
Nuts (fasteners)
bolts
Ultrasonic transducers
Bolts
electrical impedance
temperature
finite element method
titanium

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

A study on temperature dependence of an ultrasonic motor for cryogenic environment. / Nakazono, Masahiro; Kanda, Takefumi; Yamaguchi, Daisuke; Suzumori, Koichi; Noguchi, Yuya.

In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 54, No. 7, 07HE15, 01.07.2015.

Research output: Contribution to journalArticle

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