S.A. Agulhas II

Thursday, December 27, 2012

S. African Polar Research Vessel

The Polar Research Vessel S.A. Agulhas II has been built by STX Finland for the South African Department of Environmental Affairs (DEA). The ship is a modern and sophisticated research vessel, commissioned to the DEA in May 2012, built to replace the S.A. Agulhas after 33 years of service.  The ship will support the South African National Antarctic Expedition (SANAE IV) base on the Antarctic continent, a base which conducts research in the fields of physical sciences, earth sciences and life sciences.  It will provide support to the base by carrying supplies, personnel and researchers to the base as well as to Marion and Gough Islands where biological, environmental and climate change research takes place. The modified vessel will also allow for mobile research to be conducted as it consists of eight permanent and six containerized laboratories. In addition to climate change and scientific research, the vessel has a weather station that transmits continuous data back to South African Weather Services. Marine life observation, which is a key indicator of climate change around the world, will also be conducted on the ship through observation towers. In March 2012, S.A. Agulhas II underwent sea and ice trials before her maiden voyage to Cape Town in April. Both trials were commissioned in the North Bay of Bothnia, Finland over a five-day period where all aspects of the ship was tested.  A seminar took place on the S.A. Agulhas II Full-scale Ice Measurement Project, which was held over three days from the September 10-12, 2012 at the picturesque Stias Wallenberg Conference Center at the South African Stellenbosch University campus. The consortium included, representatives from STX Finland, the Department of Environmental Affairs South Africa (DEA), DNV, Professors and students from the Universities of Aalto and Oula in Finland and Stellenbosch University South Africa; gathered to share results from the ice trials on the new S.A. Agulhas II held earlier in 2012
Professor Pentti Kujala, a professor in Marine Traffic Safety at the Aalto University in Finland, has been doing research in his field for 35 years on different vessels, however this is the first vessel that he can do measurements both in the Baltic Sea and in Antarctica. The aim of his study was to measure the ice loading on the hull and on the propulsion. “The ship is going in ice so we want to know what kind of load the ice is causing on the hull and the propulsion so we can develop our design methods in long term.”
The results were determined in the Baltic Sea in half a meter ice, which is quite thin. The measurement of ice loads of the ship’s hull and propulsion will be an ongoing study as the S.A. Agulhas II departs for the Antarctic in December where further measurements will be made by Professor Kujala and his research team.
The Stellenbosch University’s research aim was to create a scientific basis for the design of ice-going ships, in particular the relationship between operational conditions and ice load on the hull and human comfort in terms of vibration and sound. The contribution of the Sound and Vibration Research Group of the University of Stellenbosch was to aid in the assessment of occupant dynamic and acoustic comfort associated with these various ice load conditions in order to contribute to the development of occupant comfort metrics for ice- going vessels. The focus was rather to measure dynamic seat comfort in one location under a variety of ice-loading conditions, rather than the measurement of a variety of seats under different ice loading conditions. The results proved that most significant vibration was experienced when the ship was breaking out of channel in reverse, reversing straight in a freshly broken channel, cruising through level ice with ridges, cruising through rafted ice with ridges and when the ice level experience vibrations with magnitudes roughly ten times higher than those on the bridge. “The Captain was not uncomfortable at all in his seat,” said Doctor Annie Bekker, a Stellenbosch University Senior Lecturer and Researcher.
Classification society Det Norske Veritas (DNV) had its own objective of study on the ice trials: to test the dynamic response in shaft line reacted to ice-loads on propeller bladesk as well as the interior noise measurement onboard.



(As published in the December 2012 edition of Maritime Reporter - www.marinelink.com)

Maritime Reporter February 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Environmental

Martian Ocean Held More Water than the Arctic

The National Aeronautics and Space Administration say there was once more water on the planet Mars than in the Arctic Ocean on Earth.   In a new study in the journal Science,

Senate Committee Approves Vessel Discharge Reform Legislation

The effort to establish a uniform national framework for the regulation of vessel discharges took another step forward as the Senate Committee on Commerce, Science and Transportation approved S.

New Tool for Recovering Oil from Sunken Wrecks

A tool for removing oil trapped in submerged vessels has been developed in Norway by design specialists Miko Marine.   The launch of the Moskito aims to address

Maritime Safety

India's Naval Help to Small Indian Ocean Nations

Indian Prime Minister Narendra Modi assigned senior officials in the Ministry of Defence with a task to “identify” and “support” maritime needs of smaller nations

Houston Ship Channel Reopens After Ships Collide

The Houston Ship Channel has reopened after a collision between a container ship and a chemical tanker, according to a spokesman with the United States Coast Guard.

Senate Committee Approves Vessel Discharge Reform Legislation

The effort to establish a uniform national framework for the regulation of vessel discharges took another step forward as the Senate Committee on Commerce, Science and Transportation approved S.

Vessels

Remontowa to Build Ferries for BC Ferries

Polish shipyard Remontowa Shipbuilding SA has signed a contract for building three car-and-passenger ferries for the Canadian ship owner - BC Ferries Company, said Xinhua.

Irish Ferries Owner Revenues up 9.6%

Irish Continental Group, the company behind Irish Ferries, posted a 9.6pc increase in revenue last year (2014) in taking Euro 290.1 million.   ICG's ferry division

Two Mooring Tugs Delivered to NSW

Nakilat Damen Shipyards Qatar (NDSQ) has delivered two new Qatari-built mooring tugs to towage operator Nakilat SvitzerWijsmuller (NSW).   The delivery of the

 
 
Maritime Careers / Shipboard Positions Maritime Standards Navigation Offshore Oil Pipelines Pod Propulsion Ship Electronics Ship Simulators Shipbuilding / Vessel Construction Sonar
rss | archive | history | articles | privacy | terms and conditions | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.1824 sec (5 req/sec)