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ShipWeight - The most Powerful Application for Weight Control 

Discover how world’s leading yards control the weight of their priced products!

To maintain and ensure important ship parameters such as deadweight, stability, speed, strength and seakeeping a reliable estimation of weight and center of gravity is important. Depending on the vessel type, one or more of these parameters can be crucially influenced by the weight, and a deviation between real and estimated weight can lead to reduced vessel performance. Significant deviation can result in rebuilding and late delivery of the vessel.  
 
Weight and the market
In a low-margin market, reduced margins must be met with higher confidence in preliminary weight estimation and better weight control during the construction of the vessel. As the lightship weight often is the most important input for cost estimation, reliable weight estimation is also needed for competitive quotations.
 
Statistical Estimation approach
Based on a statistical approach utilizing past ship data, ShipWeight can quickly and efficiently estimate weight and center of gravity. Regression is automatically executed on a relevant selection of past ship data, standard deviation is calculated for each weight group and successive calculations are used to obtain an uncertainty quantification of the total weight and center of gravity.
 
Weight monitoring
ShipWeight contains all necessary tools to perform weight tracking and monitoring. Numerous import and export functions are available, linking ShipWeight to all the major ship design software in the world. Several reports, both standard and custom made can be produced automatically. As-built weights can be compared to estimated weights and a range of user-defined codes can be tagged to each weight item.
 
A scalable solution
ShipWeight can be implemented at any level ranging from a single user system using an Access database to a large multiuser system running on SQL server databases where information can be shared from any number of users and companies. The system can also be used from the early conceptual design phase and all the way until completion and delivery of the vessel.
 
One system for all types of floating structures
ShipWeight can handle any type of floating structures, including all kinds of ships and offshore platforms. Estimation and monitoring can be done according to selected work breakdown system dividing the vessel into weight groups. The user can determine which groups are relevant for his vessel type. Both the English and the metric system are applied to a project and conversion between the unit systems is also easy.
 

The user is in control
ShipWeight is not a black box system. All calculations are controlled by the user, and the user can override any method, parameter or result at any level. All actions and decisions made by the user can be logged and all selections can be saved and documented.
 

 
A powerful system
In addition to handling both estimation and monitoring in a single integrated system, ShipWeight includes many general weight tasks, such as producing a longitudinal weight distribution curve, gyration values and risk analysis. After completing a vessel, the weight information from the monitoring process is exported to a past ship database and can be utilized when the weight of the next vessel is estimated.
 
IMPROVE future weight estimations
When the system is utilized in the course of systematically following up weight during the building phase, weights, centers of gravity and other parameters are recorded and structured in such a way as to provide an optimal basis of empirical experience for estimating weights and centers of gravity in subsequent projects.
 
Click here to download a brochure of ShipWeight


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