Peripherally bolted torsional Langevin vibrator with large diameter

Yoshikazu Koike, Manabu Kihara, Jun Satonobu, Kentaro Nakamura, Sadayuki Ueha

Research output: Contribution to journalArticle

Abstract

To fabricate a bolt-clamped large diameter Langevin torsional vibrator as designed is usually difficult. A torsional vibrator tightened with an outside bolt is proposed in which the designed characteristics in the resonant vibration of the normal mode is achieved. A torsional vibrator 80 millimeters in diameter with a calculated resonant frequency of 28 kHz has been fabricated. The resonant frequency of the torsional vibrator is 26.1 kHz, the quality factor is 890 and the maximum angular velocity is 4.1 rad/s. It is confirmed that the vibration characteristics obtained with the externally-bolted transducer are improved compared with the torsional transducer tightened with an inside bolt.

Original languageEnglish
Pages (from-to)239-246
Number of pages8
JournalJournal of the Acoustical Society of Japan (E) (English translation of Nippon Onkyo Gakkaishi)
Volume18
Issue number5
Publication statusPublished - 1997 Sep
Externally publishedYes

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bolts
resonant frequencies
transducers
resonant vibration
angular velocity
Q factors
vibration

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

Cite this

Peripherally bolted torsional Langevin vibrator with large diameter. / Koike, Yoshikazu; Kihara, Manabu; Satonobu, Jun; Nakamura, Kentaro; Ueha, Sadayuki.

In: Journal of the Acoustical Society of Japan (E) (English translation of Nippon Onkyo Gakkaishi), Vol. 18, No. 5, 09.1997, p. 239-246.

Research output: Contribution to journalArticle

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