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Paper Abstract and Keywords
Presentation 2016-01-29 13:00
[Invited Talk] Topics of Elastic Wave Propagation along Cable -- Akashi-Kaikyo Bridge Cable and Violin String --
Hideo Utsuno (Kansai Univ.) US2015-99 EA2015-62
Abstract (in Japanese) (See Japanese page) 
(in English) When cat-walk cables collide each other by the wind, abnormal noise that sounds as "Hyuuon" is observed near the anchor of the Akashi Kaikyo Bridge. This abnormal sound is certified to be the bending wave propagation whose propagation speed depends on the frequency. Then, new identification method of bending stiffness and tension at one time is proposed, and verified by using several natural frequencies for tensile cable systems . The stick-slip vibration of violin strings is also studied. Wave propagation is expressed in a local neighborhood rule of cellular automata that superimposes the reflecting wave and traveling wave. Without using the sinusoidal function, proposed method has succeeded in reproducing the saw-tooth wave at an arbitrary position of strings and the Helmholtz wave (triangle wave), which represents vibration displacement along strings. Above three phenomena of wave propagation are explained from the point view of elastic wave.
Keyword (in Japanese) (See Japanese page) 
(in English) Cable / Tension / Bending wave / Dispersive wave / Violin / String / Stick-slip vibration / Cellular automata  
Reference Info. IEICE Tech. Rep., vol. 115, no. 424, EA2015-62, pp. 45-50, Jan. 2016.
Paper # EA2015-62 
Date of Issue 2016-01-21 (US, EA) 
ISSN Print edition: ISSN 0913-5685    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 US2015-99 EA2015-62

Conference Information
Committee US EA  
Conference Date 2016-01-28 - 2016-01-29 
Place (in Japanese) (See Japanese page) 
Place (in English) Kansai University, Centenary Memorial Hall 
Topics (in Japanese) (See Japanese page) 
Topics (in English) [Joint Meeting on Acoustics and Ultrasonics Subsociety] Engineering/Electro Acoustics, Ultrasonic and Underwater Acoustics, and Related Topics 
Paper Information
Registration To EA 
Conference Code 2016-01-US-EA 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Topics of Elastic Wave Propagation along Cable 
Sub Title (in English) Akashi-Kaikyo Bridge Cable and Violin String 
Keyword(1) Cable  
Keyword(2) Tension  
Keyword(3) Bending wave  
Keyword(4) Dispersive wave  
Keyword(5) Violin  
Keyword(6) String  
Keyword(7) Stick-slip vibration  
Keyword(8) Cellular automata  
1st Author's Name Hideo Utsuno  
1st Author's Affiliation Kansai University (Kansai Univ.)
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Speaker Author-1 
Date Time 2016-01-29 13:00:00 
Presentation Time 40 minutes 
Registration for EA 
Paper # US2015-99, EA2015-62 
Volume (vol) vol.115 
Number (no) no.423(US), no.424(EA) 
Page pp.87-92(US), pp.45-50(EA) 
#Pages 6 
Date of Issue 2016-01-21 (US, EA) 

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