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Paper Abstract and Keywords
Presentation 2024-01-25 10:30
Rotation of a nut attached to a vibrationally-stimulated bolt -- Mechanism for determining the direction of rotation of the nut --
Hirotaka Tominaga (Saga Univ.) NLP2023-103 MICT2023-58 MBE2023-49
Abstract (in Japanese) (See Japanese page) 
(in English) A nut inserted into a vibrated bolt or screw attached to a vibrated member
will cause continuous rotation if the nut or screw is not tightened.
Although very common in threaded fasteners, this phenomenon, in which the direction of rotation of a nut or screw depends on the type of vibration induced in the structure, either clockwise or counterclockwise, has not been studied extensively.
The mechanism is that the rotating motion of the nut and screw is not a continuous motion as explained by sliding or rolling involving friction between the screw and seat surfaces, but a discontinuous motion that repeatedly moves through a small gap between the bolt and nut without resistance and then collides with the bolt and nut, based on the periodic, violent collision noise.
This phenomenon will be observed with a high-speed camera to clarify the mechanism.
Keyword (in Japanese) (See Japanese page) 
(in English) Bolt and nut / Screw / Vibration Induced Rotation(VIR) / / / / /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 354, NLP2023-103, pp. 94-97, Jan. 2024.
Paper # NLP2023-103 
Date of Issue 2024-01-17 (NLP, MICT, MBE) 
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 NLP2023-103 MICT2023-58 MBE2023-49

Conference Information
Committee NC MBE NLP MICT  
Conference Date 2024-01-24 - 2024-01-25 
Place (in Japanese) (See Japanese page) 
Place (in English) Naruto University of Education 
Topics (in Japanese) (See Japanese page) 
Topics (in English) NC, MBE, MICT, NLP, etc. 
Paper Information
Registration To NLP 
Conference Code 2024-01-NC-MBE-NLP-MICT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Rotation of a nut attached to a vibrationally-stimulated bolt 
Sub Title (in English) Mechanism for determining the direction of rotation of the nut 
Keyword(1) Bolt and nut  
Keyword(2) Screw  
Keyword(3) Vibration Induced Rotation(VIR)  
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1st Author's Name Hirotaka Tominaga  
1st Author's Affiliation Saga University (Saga Univ.)
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Speaker Author-1 
Date Time 2024-01-25 10:30:00 
Presentation Time 20 minutes 
Registration for NLP 
Paper # NLP2023-103, MICT2023-58, MBE2023-49 
Volume (vol) vol.123 
Number (no) no.354(NLP), no.355(MICT), no.356(MBE) 
Page pp.94-97 
#Pages 4 
Date of Issue 2024-01-17 (NLP, MICT, MBE) 

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