NDLI: Mechanized underwater welding and cutting for VLFS

Content Provider	IEEE Xplore Digital Library
Author	Ogawa, Y.
Copyright Year	2002
Description	Author affiliation: Nat. Inst. of Adv. Ind. Sci. & Technol., Takamatsu, Japan (Ogawa, Y.)
Abstract	Mechanized underwater welding and cutting techniques are very important for actual usage of very large floating structures (VLFS). On-site welding plays a major part in the construction process. The total weld line is very long and a half part is submerged under water. The water curtain type wet underwater welding technique had shown its excellent ability for the construction of a Mega-Float which was carried out by the Technological Research Association (TRA) of Mega-Float. A mechanized underwater welding machine in overhead position was also developed for maintenance of the Mega-Float. Public facilities like an offshore airport require frequent maintenance and alteration to keep up with the latest needs and safety. The underwater mechanized cutting technique is a suitable method for alteration and dismantling. In the case of alteration, the quality and operating cost of cutting are very important. That is the reason why mechanized underwater flame cutting is required. A high quality cut was obtained under severe conditions such as heavy attachment of bio-fouling on the bottom.
Sponsorship	IEEE Oceanic Eng. Soc. Inst. Ind. Sci., Univ. Tokyo U.S. Office of Naval Res. Int. Field Office, Asia
Starting Page	87
Ending Page	92
File Size	422711
Page Count	6
File Format	PDF
ISBN	0780373979
DOI	10.1109/UT.2002.1002395
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-04-19
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Welding Costs Sea surface Ocean temperature Fabrication Airports Thermal management Inspection Magnetic heads Air safety
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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