2D Wire Frame FE-Analysis:

An example of a 2D hatch cover analysis is the wireframe 2d model presented of a Multi-Purpose vessel. Our Naval Architects create these 2D wire frame models consequently, to undertaken large FE structure analysis. Hence, the Naval architects are using the 2D model for rigorous analysis. This includes many real-life scenarios that occur when transporting heavy loads. Moreover, the re-engineering of a hatch-cover, tween-deck or the lower-hold of a vessel is commonly undertaken within MBM team of Naval Architects. The final results of the Hatch Cover analysis is to confirm the structural integrity to transport cargo’s in sea going conditions.

There are 4 stages of analysis:

• Stage 1 – The Naval Architect requests the Drawings.

The Naval Architect defines the model using the scantling drawings of the hatches.

• Stage 2 – Confirmation of dimensions from drawings with a Hatch Survey on the vessel.

The Naval Architects regularly attend the vessel and are then able to confirm the scantling drawings provided.

This process will ensure the model is satisfactory:

The drawings provided correspond to the hatch under analysis.
Modifications, corrosion, erosion, cracks, or imperfections are recorded by the Naval Architect during the survey.

After that the Naval Architect has the full set of hatch information. the Naval Architect create and analyse the hatch-covers.

Our Naval Architect use the full set of hatch information to re-engineered and analyse the hatch-covers.

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Similarly, the Naval architect can analyse as a singular pontoon to speed up the computation process-

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• Stage 4 – Therefore the model is now subject to state-of-the-art FE-Analysis.

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In conclusion the Heavy Project cargo Naval Architect continually undertakes assessment of the hatch-covers and tween-decks of Heavy lift Vessels. Reviewing the material properties to define the deflections due to loading conditions and sea going forces. In addition, there are different types of analysis that can be performed. This is not limited to stress, strain, and buckling scenarios, although all these will occur from impact conditions caused from slamming.

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