Performance analysis for lateral-line-inspired sensor arrays
Thesis (Ph. D.)--Joint Program in Applied Ocean Science and Engineering (Massachusetts Institute of Technology, Dept. of Mechanical Engineering; and the Woods Hole Oceanographic Institution), 2011.
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| Format: | Thesis |
| Language: | eng |
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Massachusetts Institute of Technology
2011
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| Online Access: | http://hdl.handle.net/1721.1/67581 |
| _version_ | 1826205189362679808 |
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| author | Fernandez, Vicente I |
| author2 | Michael S. Triantafyllou. |
| author_facet | Michael S. Triantafyllou. Fernandez, Vicente I |
| author_sort | Fernandez, Vicente I |
| collection | MIT |
| description | Thesis (Ph. D.)--Joint Program in Applied Ocean Science and Engineering (Massachusetts Institute of Technology, Dept. of Mechanical Engineering; and the Woods Hole Oceanographic Institution), 2011. |
| first_indexed | 2024-09-23T13:08:46Z |
| format | Thesis |
| id | mit-1721.1/67581 |
| institution | Massachusetts Institute of Technology |
| language | eng |
| last_indexed | 2024-09-23T13:08:46Z |
| publishDate | 2011 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/675812022-01-11T21:35:11Z Performance analysis for lateral-line-inspired sensor arrays Fernandez, Vicente I Michael S. Triantafyllou. Woods Hole Oceanographic Institution. Joint Program in Applied Ocean Physics and Engineering Massachusetts Institute of Technology. Dept. of Mechanical Engineering. Woods Hole Oceanographic Institution. Massachusetts Institute of Technology. Department of Mechanical Engineering Joint Program in Applied Ocean Science and Engineering. Mechanical Engineering. Woods Hole Oceanographic Institution. Sensor networks Underwater navigation Thesis (Ph. D.)--Joint Program in Applied Ocean Science and Engineering (Massachusetts Institute of Technology, Dept. of Mechanical Engineering; and the Woods Hole Oceanographic Institution), 2011. Cataloged from PDF version of thesis. Includes bibliographical references (p. 223-232). The lateral line is a critical component of the fish sensory system, found to affect numerous aspects of behavior including maneuvering in complex fluid environments, schooling, prey tracking, and environment mapping. This sensory organ has no analog in modem ocean vehicles, despite its utility and ubiquity in nature, and could fill the gap left by sonar and vision systems in turbid cluttered environments. Yet, while the biological sensory system suggests the broad possibilities associated with such a sensor array, nearly nothing is known of the input processing and what information is available via the real lateral line. This thesis demonstrates and characterizes the ability of lateral-line-inspired linear pressure sensor arrays to perform two sensory tasks of relevance to biological and man-made underwater navigation systems, namely shape identification and vortex tracking. The ability of pressure sensor arrays to emulate the "touch at a distance" feature of the lateral line, corresponding to the latter's capability of identifying the shape of objects remotely, is examined with respect to moving cylinders of different cross sections. Using the pressure distribution on a small linear array, the position and size of a cylinder is tracked at various distances. The classification of cylinder shape is considered separately, using a large database of trials to identify two classification approaches: One based on differences in the mean flow, and one trained on a subset which utilizes information from the wake. The results indicate that it is in general possible to extract specific shape information from measurements on a linear pressure sensor array, and characterize the classes of shapes which are not distinguishable via this method. Identifying the vortices in a flow makes it possible to predict and optimize the performance of flapping foils, and to identify imminent stall in a control surface. Vortices in wakes also provide information about the object that generated the wake at distances much larger than the near-field pressure perturbations. Experimental studies in tracking a vortex pair and an individual vortex interacting with a flat plate demonstrate the ability to track vortices with a linear pressure sensor array from both small streamlined bodies and large flat bodies. Based on a theoretical analysis, the relationship between the necessary array parameters and the range of vortices of interest is established. by Vicente I. Fernandez. Ph.D. 2011-12-09T21:27:28Z 2011-12-09T21:27:28Z 2011 2011 Thesis http://hdl.handle.net/1721.1/67581 763256056 eng 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 232 p. application/pdf Massachusetts Institute of Technology |
| spellingShingle | Joint Program in Applied Ocean Science and Engineering. Mechanical Engineering. Woods Hole Oceanographic Institution. Sensor networks Underwater navigation Fernandez, Vicente I Performance analysis for lateral-line-inspired sensor arrays |
| title | Performance analysis for lateral-line-inspired sensor arrays |
| title_full | Performance analysis for lateral-line-inspired sensor arrays |
| title_fullStr | Performance analysis for lateral-line-inspired sensor arrays |
| title_full_unstemmed | Performance analysis for lateral-line-inspired sensor arrays |
| title_short | Performance analysis for lateral-line-inspired sensor arrays |
| title_sort | performance analysis for lateral line inspired sensor arrays |
| topic | Joint Program in Applied Ocean Science and Engineering. Mechanical Engineering. Woods Hole Oceanographic Institution. Sensor networks Underwater navigation |
| url | http://hdl.handle.net/1721.1/67581 |
| work_keys_str_mv | AT fernandezvicentei performanceanalysisforlaterallineinspiredsensorarrays |