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| Presentation | 2015-09-04 10:50 Trail of strong sound field formation in metal pipe Akihiro Nakao, Manabu Aoyagi (Muroran Inst. of Tech.), Hideki Tamura, Takehiro Takano (Tohoku Inst. of Tech.)  US2015-56 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | A levitation transport using the flexural vibration mode of a cylindrical pipe and the resonance of its internal air column have been studied. The objective of this study is to form a strong sound field in a metal pipe and to apply it into the transportation of small materials. The formation of the strong sound filed in the pipe was tried by bringing wave numbers of non-axisymmetric vibration mode of the air column into the pipe and non-axisymmetric flexural vibration mode of the pipe close. By sound and structure coupled analysis by a finite element analysis, it was confirmed that a standing wave sound field was clearly formed in the pipe. As the non-axisymmetric flexural vibration mode of the pipe can be easily generated by exciting with at least two points on the side of the pipe, the side of the pipe end was excited at the resonance frequency of the vibration mode by multilayer piezoelectric actuators. The levitation of small objects near the node of the sound field and forming strong sound field of 143dB at pipe end were confirmed. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | ultrasonic / strong sound field / levitation / cylindrical pipe / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 115, no. 207, US2015-56, pp. 57-60, Sept. 2015. | |
| Paper # | US2015-56 | |
| Date of Issue | 2015-08-27 (US) | |
| 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 | US2015-56 |
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| Conference Information | |
| Committee | US |
| Conference Date | 2015-09-03 - 2015-09-04 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | General |
| Paper Information | |
| Registration To | US |
| Conference Code | 2015-09-US |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Trail of strong sound field formation in metal pipe |
| Sub Title (in English) | |
| Keyword(1) | ultrasonic |
| Keyword(2) | strong sound field |
| Keyword(3) | levitation |
| Keyword(4) | cylindrical pipe |
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| 1st Author's Name | Akihiro Nakao |
| 1st Author's Affiliation | Muroran Institute of Technology (Muroran Inst. of Tech.) |
| 2nd Author's Name | Manabu Aoyagi |
| 2nd Author's Affiliation | Muroran Institute of Technology (Muroran Inst. of Tech.) |
| 3rd Author's Name | Hideki Tamura |
| 3rd Author's Affiliation | Tohoku Institute of Technology (Tohoku Inst. of Tech.) |
| 4th Author's Name | Takehiro Takano |
| 4th Author's Affiliation | Tohoku Institute of Technology (Tohoku Inst. of Tech.) |
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| Speaker | Author-1 |
| Date Time | 2015-09-04 10:50:00 |
| Presentation Time | 30 minutes |
| Registration for | US |
| Paper # | US2015-56 |
| Volume (vol) | vol.115 |
| Number (no) | no.207 |
| Page | pp.57-60 |
| #Pages | 4 |
| Date of Issue | 2015-08-27 (US) |
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