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Paper Abstract and Keywords
Presentation 2007-11-14 16:20
Nonlinear vibration characteristics of beam structure in electromagnetic relay
Wanbin Ren, Yinghua Chen, Guofu Zhai (Harbin Inst. of Tech.) EMD2007-83 Link to ES Tech. Rep. Archives: EMD2007-83
Abstract (in Japanese) (See Japanese page) 
(in English) Vibration characteristics of contact system have effect on the reliability of switching electrical apparatus, such as
electromagnetic relay and contactor, that working in the mechanical environment greatly. According to the typical features of
contact system, the non-linear vibration characteristics of a linear beam with cantilever-Hertizian contact boundary conditions
were investigated in this paper. The mathematical models of beam structure vibration are presented by forth-order partial
differential equation, and the semi-analytic solutions were obtained by using the method of multiple scales. One primary result
from this analysis is the amplitude–frequency relation for the various flexural modes. The softening behavior of
amplitude-frequency is investigated by varied parameters including, initial contact force, damping coefficient, excited force
and mass of contact. Different normal modes of contact system were solved explicitly. The results show that the method is
more suitable for nonlinear dynamics analysis of contact system in electromagnetic relay.
Keyword (in Japanese) (See Japanese page) 
(in English) electromagnetic relay / beam structure / Hertzian contct / nonlinear vibration / multiple scale method / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 309, EMD2007-83, pp. 83-89, Nov. 2007.
Paper # EMD2007-83 
Date of Issue 2007-11-07 (EMD) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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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 EMD2007-83 Link to ES Tech. Rep. Archives: EMD2007-83

Conference Information
Committee EMD  
Conference Date 2007-11-14 - 2007-11-15 
Place (in Japanese) (See Japanese page) 
Place (in English) Actcity Hamamatsu 
Topics (in Japanese) (See Japanese page) 
Topics (in English) International Session on Electro-Mechanical Devices 2007 
Paper Information
Registration To EMD 
Conference Code 2007-11-EMD 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Nonlinear vibration characteristics of beam structure in electromagnetic relay 
Sub Title (in English)  
Keyword(1) electromagnetic relay  
Keyword(2) beam structure  
Keyword(3) Hertzian contct  
Keyword(4) nonlinear vibration  
Keyword(5) multiple scale method  
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Keyword(8)  
1st Author's Name Wanbin Ren  
1st Author's Affiliation Harbin Inst. of Technology (Harbin Inst. of Tech.)
2nd Author's Name Yinghua Chen  
2nd Author's Affiliation Harbin Inst. of Technology (Harbin Inst. of Tech.)
3rd Author's Name Guofu Zhai  
3rd Author's Affiliation Harbin Inst. of Technology (Harbin Inst. of Tech.)
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Speaker Author-1 
Date Time 2007-11-14 16:20:00 
Presentation Time 20 minutes 
Registration for EMD 
Paper # EMD2007-83 
Volume (vol) vol.107 
Number (no) no.309 
Page pp.83-89 
#Pages
Date of Issue 2007-11-07 (EMD) 


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