Concept and Testing of a Remotely Operated Vehicle-Mountable Inductive Electrothermal Polar Under-Ice Corer

AbstractIce core samples from the polar ice shelves contain valuable paleo-climatic records and information for understanding the unique polar under-ice ecosystem. This paper describes the finite element analysis-aided design, development, and qualification of a 63-mm-inner diameter, 250-mm-long var...

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Bibliographic Details
Published in:Marine Technology Society journal 2017-11, Vol.51 (6), p.33-43
Main Authors: Vedachalam, Narayanaswamy, Vadivelan, Arumugam, Umapathy, Arunachalam, Murugesan, Munusamy, Durai, Gopal, Chandrasekaran, Ellappan, Jothi, Chithiravel, Ramesh, Raju, Ramesh, Sethuraman, Ramadass, Gidugu Ananda
Format: Article
Language:English
Subjects:
Corers
Cores
Finite element method
Ice
Ice ages
Ice shelves
Induction
Inductive Electrothermal Ice Corer
Land ice
Mathematical analysis
Mathematical models
Model accuracy
Remotely operated vehicles
Rov
Under Ice
Underwater
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Summary:AbstractIce core samples from the polar ice shelves contain valuable paleo-climatic records and information for understanding the unique polar under-ice ecosystem. This paper describes the finite element analysis-aided design, development, and qualification of a 63-mm-inner diameter, 250-mm-long variable power underwater remotely operated vehicle-mountable inductive ice corer (IIC) for collecting ice core samples beneath the polar ice shelves. It is determined that, with the IIC operating with an input power of 1,000 W at 30 kHz, it is possible to have an ice penetration rate of 14 mm/min and obtain an ice core of 51 mm in diameter. The experimental results are found to comply with the numerical model with an accuracy of 95%.
ISSN:0025-3324
1948-1209
DOI:10.4031/MTSJ.51.6.4