NDLI: Study of the underwater observation system in fast water current

Content Provider	IEEE Xplore Digital Library
Author	Sakai, H. Tanaka, T.
Copyright Year	2003
Description	Author affiliation: Port & Airport Res. Inst., Yokosuka, Japan (Sakai, H.; Tanaka, T.)
Abstract	The port area is a specific region where the water depth is not so deep, the change of the flow is complex, and the transparency of the seawater is low. In the construction and the management of port facilities, it is very important to observe the situation under the water. In this paper, the "Autonomous Towed Vehicle" used in three navigation modes (towed, autonomous and "kite") is proposed as an underwater observation system in the fast current area according to the level of turbulence. First of all, necessary functions were examined for the given missions as an underwater observation system. At the next step, the stability of this system was verified by the simulation concerning the basic motion based on the supposed physical values. As a result, it was clarified that increase of the added weight and the area of the forewings were necessary to ensure the stability of this system which had the special feature as the towed vehicle. It was also shown that not only heave and pitch control by the parallel-motion of the forewings but also roll control by the differential-motion of the forewings were necessary. Furthermore, the hydrodynamic coefficients were obtained by the 1/2 model towing tank test. The observation system developed in this research can be applied to an environment monitoring system in similar conditions, and can be used for various investigations in port area.
Sponsorship	Dept. of the Navy Sci. and Technol. Coalition for Enhanced Marine Resources Orincon Ceros Harbour Offshore Inc
Starting Page	2189
Ending Page	2194
File Size	467172
Page Count	6
File Format	PDF
ISBN	0933957300
DOI	10.1109/OCEANS.2003.178241
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-09-22
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	MTS
Subject Keyword	Remotely operated vehicles Mobile robots Marine animals Stability Control systems Underwater vehicles Condition monitoring Airports Navigation Hydrodynamics
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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