Design and vibration testing of a flexible seal whisker model
Thesis (S.B.)--Massachusetts Institute of Technology, Department of Mechanical Engineering, 2013. Cataloged from PDF version of thesis. Includes bibliographical references (page 52). Harbor seal whiskers have a unique surface structure that dramatically reduces vortex induced vibrations as they move...
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ftmit:oai:dspace.mit.edu:1721.1/83716 2023-06-11T04:12:26+02:00 Design and vibration testing of a flexible seal whisker model Gerber, Christopher D Michael S. Triantafyllou. Massachusetts Institute of Technology. Department of Mechanical Engineering. 2013 52 pages application/pdf http://hdl.handle.net/1721.1/83716 eng eng Massachusetts Institute of Technology http://hdl.handle.net/1721.1/83716 864437683 M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 Mechanical Engineering Thesis 2013 ftmit 2023-05-29T08:37:03Z Thesis (S.B.)--Massachusetts Institute of Technology, Department of Mechanical Engineering, 2013. Cataloged from PDF version of thesis. Includes bibliographical references (page 52). Harbor seal whiskers have a unique surface structure that dramatically reduces vortex induced vibrations as they move through the water. Concurrently with rigid whisker experiments, this project focuses on the design and testing of a flexible model. The rubber model was cast with integrated Kevlar strings, for tensioning purposes, and accelerometers to measure vibration data. The whisker model was mounted to the carriage in the MIT tow tank where it could be towed at a variety of speeds and tension settings. Accelerometer data clarity was a significant problem, but gradual improvements to the whisker mounting design allowed higher quality data to be gathered at a larger range of towing speeds. Using this data we observed correlations between towing speed, vibration frequency, g forces, and displacement in the whisker's vertical axis of motion. Further work could be done to examine whisker motion in multiple axes, as well as with different angles of attack. by Christopher D. Gerber. S.B. Thesis harbor seal DSpace@MIT (Massachusetts Institute of Technology) |
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English |
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Mechanical Engineering |
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Mechanical Engineering Gerber, Christopher D Design and vibration testing of a flexible seal whisker model |
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Mechanical Engineering |
description |
Thesis (S.B.)--Massachusetts Institute of Technology, Department of Mechanical Engineering, 2013. Cataloged from PDF version of thesis. Includes bibliographical references (page 52). Harbor seal whiskers have a unique surface structure that dramatically reduces vortex induced vibrations as they move through the water. Concurrently with rigid whisker experiments, this project focuses on the design and testing of a flexible model. The rubber model was cast with integrated Kevlar strings, for tensioning purposes, and accelerometers to measure vibration data. The whisker model was mounted to the carriage in the MIT tow tank where it could be towed at a variety of speeds and tension settings. Accelerometer data clarity was a significant problem, but gradual improvements to the whisker mounting design allowed higher quality data to be gathered at a larger range of towing speeds. Using this data we observed correlations between towing speed, vibration frequency, g forces, and displacement in the whisker's vertical axis of motion. Further work could be done to examine whisker motion in multiple axes, as well as with different angles of attack. by Christopher D. Gerber. S.B. |
author2 |
Michael S. Triantafyllou. Massachusetts Institute of Technology. Department of Mechanical Engineering. |
format |
Thesis |
author |
Gerber, Christopher D |
author_facet |
Gerber, Christopher D |
author_sort |
Gerber, Christopher D |
title |
Design and vibration testing of a flexible seal whisker model |
title_short |
Design and vibration testing of a flexible seal whisker model |
title_full |
Design and vibration testing of a flexible seal whisker model |
title_fullStr |
Design and vibration testing of a flexible seal whisker model |
title_full_unstemmed |
Design and vibration testing of a flexible seal whisker model |
title_sort |
design and vibration testing of a flexible seal whisker model |
publisher |
Massachusetts Institute of Technology |
publishDate |
2013 |
url |
http://hdl.handle.net/1721.1/83716 |
genre |
harbor seal |
genre_facet |
harbor seal |
op_relation |
http://hdl.handle.net/1721.1/83716 864437683 |
op_rights |
M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 |
_version_ |
1768388287499599872 |