Lloyd’s Register Increases Container Stowage with BoxMax

MarineLink.com
Monday, June 03, 2013

Lloyd’s Register’s BoxMax service, and accompanying notations, aims to enable operators to load more cargo more flexiblyvby increasing and optimizing container stack weights, taking into account voyage (V) and weather (W) specific conditions.

This approach, pioneered by Lloyd’s Register (LR) last year, has now been further improved by voyage and weather dependent criteria being incorporated into the modeling. The result is that the right stow and lashing requirements can be planned for any voyage at any time of year. Following on industry feedback since the announcement last year of new container securing arrangement rules, Lloyd’s Register has now created the BoxMax notation.

Providing container ship operators with guidance for different weather and voyages is a breakthrough, building on the same principles behind summer and winter load lines and freeboard requirements.

“No investment is required,” said Luis Benito, Global Marine Marketing Manager, Lloyd’s Register. “BoxMax is a smart solution to the needs of operators. Significant improvements in container stack weights can now be identified. Forces in a stack vary widely and vary between stacks at different locations in a ship. Our rules provide the greatest stowage planning flexibility in the market, enabling operators to achieve the most cost effective container transportation.”

LR addresses the interaction between the complex, multi-degree of freedom motions experienced by a container ship and the consequential load paths through container stacks and their support arrangements. LR said this is not just mathematics – real containers have been load tested at full scale and ships have been instrumented; new insight for the larger 16-18,000 teu designs now emerging and for next generation 22,000+ teu ship designs.

Lloyd’s Register is now ready to assess ships’ lashings for any voyage and season. Building on its experience in other ship type sectors, including naval ships, Lloyd’s is able to offer a service can assess the stowage requirements in specific sea areas and in specific seasons.

The BoxMax method uses ship specific factors, supplied by LR, which define the key ship motion parameters of heave acceleration, roll and pitch angles and whipping accelerations in specific sea areas and for the required season. All the other ship motion acceleration values are dependent on these four parameters.

David Tozer, Business Manager, Container Ships, Lloyd’s Register, said, “Consider a container ship trading with ‘unrestricted service’, all year round, between Asia and Europe. For this trade the maximum container stack weight is 100%, i.e. the voyage dependent feature is of no benefit for stacks which are travelling the full distance. However, for stacks which are only travelling in the SE China or Mediterranean Sea areas for example, the stack weights can be greater. The assignment of the BoxMax (V) notation will denote the ship has access to this capability.”

“Similarly, if the containers being shipped within these areas are being carried during the summer months the stack weights can be increased, in some cases by up to 25%. The BoxMax (W) notation will demonstrate this capability,” he added.

For container stacks which are travelling the entire Asia-Europe voyage, the benefits of summer sailing may be relatively small, of the order 2%, as Biscay may be challenging even during the summer months.

The Lloyd’s Register Voyage and Weather Dependent method is applicable to any voyage, anywhere, during any season, LR said. The voyage dependent factors are calculated for each specific ship, and each ship will benefit, depending on where it is trading, whether it be long haul or short sea.

www.lr.org

 

Maritime Reporter June 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

New Products

COSCO Corpn. Secures Contracts of $300 mi

COSCO Corporation (Singapore) Limited announced that shipyards, which are subsidiaries of the Company’s 51% owned subsidiary COSCO Shipyard Group Ltd, have secured

Fugro Launches Seastar XP2

Fugro Satellite Positioning released its Seastar XP2 PPP GNSS augmentation service on July 1, 2014, which provides increased redundancy for mission-critical offshore

MAN Extends High Speed Power Range

MAN announced it will present a newly developed 12-cylinder V-engine for use in working vessels at the SMM 2014 trade fair in Hamburg, Germany. The German engine

Container Ships

New ICTF Boosts Crowley’s Efficiency

The opening of Florida East Coast Railway’s (FEC) new, state-of-the-art intermodal container transfer facility (ICTF) adjacent to Crowley Maritime Corporation’s Port Everglades, Fla.

Pier Damaged at Port Canaveral

Undergoing Repairs While Coast Guard Investigates   The U.S. Coast Guard is investigating a weekend incident that caused pier damage and scattered concrete debris in the harbor on Sunday.

APM Terminals to Sell Container Terminal in Virginia

Port operator APM Terminals, a unit of Denmark's A.P. Moller-Maersk, said it would sell a big U.S. container terminal to infrastructure investor Alinda Capital

Logistics

Heavy Lift & Project Vessels Face Berthing Delays at Indian Ports

Heavy Lift & Project vessels calling at Indian ports are experiencing congestion, which according to the trade is an artifically created situation. They point out that unlike other vessels,

Suicide Attack Escalates Libya Violence, Oil Output Slips

Crude output slips for first time since port deal; fresh clashes in Tripoli and Benghazi. Brega oil port seen open in few days. A twin suicide bombing at a Libyan

New ICTF Boosts Crowley’s Efficiency

The opening of Florida East Coast Railway’s (FEC) new, state-of-the-art intermodal container transfer facility (ICTF) adjacent to Crowley Maritime Corporation’s Port Everglades, Fla.

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Standards Navigation Pod Propulsion Port Authority Salvage Ship Repair Ship Simulators Shipbuilding / Vessel Construction
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: 0.1272 sec (8 req/sec)