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Paper Abstract and Keywords
Presentation 2026-01-28 14:25
Changes in Resonance Characteristics of Metal 3D-Printed Member When Subjected to High-Amplitude, Long-Duration Ultrasonic Vibrations
Yuji Wada, Kentaro Nakamura (Science Tokyo) US2025-56
Abstract (in Japanese) (See Japanese page) 
(in English) Test pieces fabricated using a metal 3D printer were connected to a 50 kHz bolt-clamped Langevin transducer and excited in the longitudinal vibration mode to measure their large-amplitude characteristics. The transient response method was employed to measure the quality factor in the large-amplitude region. The quality factor at a tip vibration velocity of 1 m/s decreased to half the value previously measured at low amplitudes, and thereafter decreased in a form close to a linear function up to 2 m/s. During high-amplitude, long-duration driving, the machined and width laminated specimens could sustain vibration at 1.5 m/s for 12 hours. However, the length laminated specimen developed cracks at the node position within 4 hours. The fatigue stress at this point is estimated to be 50 MPa.
Keyword (in Japanese) (See Japanese page) 
(in English) High power ultrasound / Ultrasonic transducers / Metal 3D printer / Large amplitude / Resonance frequency / / /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 343, US2025-56, pp. 16-21, Jan. 2026.
Paper # US2025-56 
Date of Issue 2026-01-21 (US) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF US2025-56

Conference Information
Committee US  
Conference Date 2026-01-28 - 2026-01-28 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) High-intensity ultrasound, Ultrasonics, etc. 
Paper Information
Registration To US 
Conference Code 2026-01-US 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Changes in Resonance Characteristics of Metal 3D-Printed Member When Subjected to High-Amplitude, Long-Duration Ultrasonic Vibrations 
Sub Title (in English)  
Keyword(1) High power ultrasound  
Keyword(2) Ultrasonic transducers  
Keyword(3) Metal 3D printer  
Keyword(4) Large amplitude  
Keyword(5) Resonance frequency  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Yuji Wada  
1st Author's Affiliation Institute of Science Tokyo (Science Tokyo)
2nd Author's Name Kentaro Nakamura  
2nd Author's Affiliation Institute of Science Tokyo (Science Tokyo)
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Speaker Author-1 
Date Time 2026-01-28 14:25:00 
Presentation Time 25 minutes 
Registration for US 
Paper # US2025-56 
Volume (vol) vol.125 
Number (no) no.343 
Page pp.16-21 
#Pages 6 
Date of Issue 2026-01-21 (US) 

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