VESSEL REPAIRS
FEATURE SPONSOR
CONDITION MONITORING AT SEA
Condition-based maintenance (CBM) can help ship builders and operators enhance machinery performance and boost profitability
CBM is a tried and trusted technique in manufacturing. It helps improve overall machine efficiency and ensures timely, accurate repair of machines – keeping a constant watch on their condition and identifying errors before they cause problems. Most importantly, it helps reduce machine operating and maintenance costs.
BENEFITS
By investing in CBM, ship owners and operators can benefit from efficiencies that arise from greater machine reliability – and increase the number of days that each vessel remains at sea. For example, a ship used in the offshore sector is brought into dry-dock every two and a half years on average for overhauls of on-board machinery and every day in dry-dock represents lost revenue.
GATHERING DATA CBM data can be gathered in several ways. On-board engineers can use handheld devices to carry out portable data collection, or use online systems for critical equipment, where fixed sensors mounted in dangerous or hard
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www.windenergynetwork.co.uk ON BOARD SHIP
Condition monitoring also generates very large amounts of data. In a manufacturing environment, with on-site analysis, data overload is rarely a problem. On board ship, once the vessel is out of reach of land-based communications networks, it
SKF
to access areas are hard wired back to a central on-board control room. Data can therefore be analysed by ship engineers or, more commonly for critical equipment, be transmitted to a shore-based facility, such as an SKF remote diagnostic centre (RDC) for interpretation by experts.
is impractical to send such high volumes of data over satellite links – especially if it has to compete for bandwidth with voice or other more critical communication. Therefore, information must firstly be carefully analysed and filtered, with only the most relevant data being transmitted for onshore analysis.
CHALLENGE
Perhaps the biggest challenge faced by marine engineers is managing multiple on-board machines; indeed, in many instances there are so many machines on each ship, from so many different suppliers, that it resembles a floating factory. To cope with this, ship owners and operators will increasingly need to find strategic partners that can offer ship- wide and fleet-wide condition monitoring – enabling them to increase the time each vessel spends profitably at sea.
MARINE PORTAL
CONDITION MONITORING
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