Special Report
Author :
Publisher :
Page : 56 pages
File Size : 23,26 MB
Release : 1992
Category : Arctic regions
ISBN :
Author :
Publisher :
Page : 56 pages
File Size : 23,26 MB
Release : 1992
Category : Arctic regions
ISBN :
Author : Jean-Claude Tatinclaux
Publisher :
Page : 0 pages
File Size : 40,46 MB
Release : 1992
Category : Ice mechanics
ISBN :
A new Antarctic research vessel to be chartered by the National Science Foundation was designed and is under construction by North American Shipbuilding, Inc., Larose, Louisiana. A full model test program was required by NSF to verify that the proposed, design would meet the vessel operational requirements. In particular, the ship is to break 3 ft (0.9 m) of ice at 3 kn (1.5 m/s) continuously and break through pressure ridges with a 6-ft (1.8-m) sail and a 20-ft (6. 1 -m) keel. Ice model tests were made in CRREL's ice towing tank. The test program included resistance and propulsion tests in level ice, tests in ridges and ramming tests in ice floes of up to 6 ft (1.83 m) in thickness. The test results described in the report indicate that the proposed ship design with 8.8 MW of power available at the propeller would meet or exceed all operational requirements in ice: the power needed to operate continuously in 3-ft first year level ice at 3 kn was estimated at 6.5 MW: the vessel was found to be able to ram through a 38-ft (11 -m) keel ridge; finally, when rammina in 6-ft thick level ice at an impact speed of 6 kn (3.1 m/s) at full power, the vessel was predicted to penetrate by about one-third of a ship length into the ice. Antarctica, Ice ridge, Model tests, Icebreaker, Level ice, Ships.
Author : Jean-Claude Tatinclaux
Publisher :
Page : 52 pages
File Size : 11,17 MB
Release : 1989
Category : Ice
ISBN :
Author :
Publisher :
Page : 588 pages
File Size : 47,6 MB
Release : 1988
Category : Cold regions
ISBN :
Author : Carlos Guedes Soares
Publisher : CRC Press
Page : 652 pages
File Size : 24,55 MB
Release : 2019-04-15
Category : Technology & Engineering
ISBN : 1000024369
Trends in the Analysis and Design of Marine Structures is a collection of the papers presented at MARSTRUCT 2019, the 7th International Conference on Marine Structures held in Dubrovnik, Croatia, 6-8 May 2019. The MARSTRUCT series of Conferences started in Glasgow, UK in 2007, the second event of the series having taken place in Lisbon, Portugal in March 2009, the third in Hamburg, Germany in March 2011, the fourth in Espoo, Finland in March 2013, the fifth in Southampton, UK in March 2015, and the sixth in Lisbon, Portugal in May 2017. This Conference series specialises in dealing with Ships and Offshore Structures, addressing topics in the fields of: - Methods and Tools for Loads and Load Effects - Methods and Tools for Strength Assessment - Experimental Analysis of Structures - Materials and Fabrication of Structures - Methods and Tools for Structural Design and Optimisation - Structural Reliability, Safety and Environmental Protection. Trends in the Analysis and Design of Marine Structures is an essential document for academics, engineers and all professionals involved in the area of analysis and design of Ships and Offshore Structures. About the series: The ‘Proceedings in Marine Technology and Ocean Engineering’ series is devoted to the publication of proceedings of peer-reviewed international conferences dealing with various aspects of ‘Marine Technology and Ocean Engineering’. The Series includes the proceedings of the following conferences: the International Maritime Association of the Mediterranean (IMAM) conferences, the Marine Structures (MARSTRUCT) conferences, the Renewable Energies Offshore (RENEW) conferences and the Maritime Technology (MARTECH) conferences. The ‘Marine Technology and Ocean Engineering’ series is also open to new conferences that cover topics on the sustainable exploration and exploitation of marine resources in various fields, such as maritime transport and ports, usage of the ocean including coastal areas, nautical activities, the exploration and exploitation of mineral resources, the protection of the marine environment and its resources, and risk analysis, safety and reliability. The aim of the series is to stimulate advanced education and training through the wide dissemination of the results of scientific research.
Author :
Publisher :
Page : 592 pages
File Size : 47,3 MB
Release : 1993
Category : Antarctica
ISBN :
Author : National Research Council
Publisher : National Academies Press
Page : 135 pages
File Size : 29,1 MB
Release : 2007-03-14
Category : Transportation
ISBN : 0309103215
The United States has enduring national and strategic interests in the polar regions, including citizens living above the Arctic circle and three year-round scientific stations in the Antarctic. Polar icebreaking ships are needed to access both regions. Over the past several decades, the U.S. government has supported a fleet of four icebreakersâ€"three multi-mission U.S. Coast Guard ships (the POLAR SEA, POLAR STAR, and HEALY) and the National Science Foundation's PALMER, which is dedicated solely to scientific research. Today, the POLAR STAR and the POLAR SEA are at the end of their service lives, and a lack of funds and no plans for an extension of the program has put U.S. icebreaking capability at risk. This report concludes that the United States should continue to support its interests in the Arctic and Antarctic for multiple missions, including maintaining leadership in polar science. The report recommends that the United States immediately program, budget, design, and construct two new polar icebreakers to be operated by the U.S. Coast Guard. The POLAR SEA should remain mission capable and the POLAR STAR should remain available for reactivation until the new polar icebreakers enter service. The U.S. Coast Guard should be provided sufficient operations and maintenance budget to support an increased, regular, and influential presence in the Arctic, with support from other agencies. The report also calls for a Presidential Decision Directive to clearly align agency responsibilities and budgetary authorities.
Author :
Publisher :
Page : 1120 pages
File Size : 50,72 MB
Release : 1992
Category : Government reports announcements & index
ISBN :
Author :
Publisher :
Page : 260 pages
File Size : 15,89 MB
Release : 1997
Category : Antarctica
ISBN :
Author :
Publisher :
Page : 472 pages
File Size : 28,96 MB
Release : 1993
Category : Marine engineering
ISBN :