DELFTloadDELFTload™ is an advanced on board stability calculation program for almost any type of vessel. The software has been designed in collaboration with ship owners and crew members. The result is a intuitive program that is easily operated and which excels in 3D visualization of loading conditions.

Loading conditions generated with DELFTload™ are analyzed using a very accurate 3D computer model of the ship. The direct calculation approach based on surface paneling is a great improvement over the traditional methods employed. Accurate and reliable results are produced which are displayed visually on screen as well as in a clear and understandable report.

 

DELFTload-1DELFTload™ basic.

The basic program manages the creation of loading conditions and filling of tanks.  A 3D view displays, amongst other things, water planes, tank fillings and locations of the various loads from the loading condition. The calculated results are validated against the stability criteria. The modular structure of the software makes it suitable for many different vessels. Depending on the type of ship the following modules can be integrated in the software:

 

Longitudinal strength.

The longitudinal strength module calculates the still water shear force and bending moment for any given loading condition. The calculated values are plotted in graphs together with the envelopes of the allowable maximum and minimum values.

DELFTload-2Container loading.

Containers can be loaded on the ship graphically or by manually assigning the bay numbers. Loaded containers are displayed in a 2D view showing the bays or in the 3D model. Containers loaded on top of the hatches are automatically included in the wind silhouette.

DELFTload-3General cargo.

The general cargo module allows for the positioning of multiple cargo objects in the holds, on the hatches or anywhere else on the vessel. The cargo can be modeled in 3D using geometric primitives to visualize the space occupied by the cargo. In addition it's also possible to import Google Sketchup models. An extensive and free library of 3D models can be found on the Google 3D warehouse website. The same 3D model of the cargo is used for calculating the windsilhouette which is automatically extracted where overlapping items are removed. The general cargo extension can also be used to fill the holds with homogeneous bulk cargo. Various items, such as hatch covers, grain bulkheads etc. can be moved to pre-fixed locations by choosing the desired target location from a menu. The general cargo module can optionally be extended to include grain stability.

 

DELFTload-4Heavy lifting.

The heavy lifting module is used to check the stability of the ship while handling loads suspended from cranes. Multiple cranes  are supported which are controlled with the mouse or numerically. During the operation cranes and cargo are updated in the 2D and 3D views in realtime.

The extension also supports and visualizes stabilizer pontoons used for extra stability during the lifting process.

 

Tank gauging.

Another feature is the ability to connect to the ships' tank gauging system so the contents of tanks fitted with a tank sensor can directly be imported into the program and maintained in realtime. If the ship is fitted with draught sensors the draught can also be monitored over a period of time. One useful application is to monitor the change in displacement and deadweight during loading or unloading the vessel.