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Pinned ideas

PINNED Max VCG for specific loadcase (like limit VCG) analysis
Add new functionality to Large Angle Stability analysis so that a single fixed-weight item in the loadcase can be selected so that automatically the maximum VCG of that item can be found for which the GZ curve still (just) passes all selected stab...

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Hi, For the mooring analysis, we observed that the windage calculation in MOSES appears to include projected areas located behind other structures, even when those areas are effectively shielded from the wind. For example, in the transverse direction, cargo positioned behind the forecastle deck is still included in the exposed wind area. In practice, these shielded areas would not be fully exposed to the wind and therefore should not contribute to wind forces to the same extent as directly exposed surfaces. As a result, MOSES predicts higher wind forces, leading to increased mooring line tensions and vessel excursions when a CS_WIND value of 1.0 is used. This appears to be conservative when compared with our manual assessment of the effective exposed projected area. To better align the MOSES results with the actual exposed area, our back-calculation indicates that a CS_WIND factor in the range of approximately 0.7 to 0.8 is more representative. However, this requires additional back-calculation for each case. Ideally, the software should account for shielding effects automatically and consider only the effectively exposed projected areas. Areas located behind obstructions should be excluded, or appropriately reduced, in the effective windage calculation. Such an enhancement would provide a more realistic estimation of wind loads while avoiding unnecessary conservatism. In addition, it would be very useful if MOSES could explicitly report the calculated windage area and provide an outline or visual indication of the projected areas contributing to the wind load for each wind direction. This would allow users to verify the exposed area considered in the calculation and improve confidence in the analysis results. Regards, Vivek

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about 13 hours ago in  0 Needs review

Convert MOSES slings to equivalent SACS members

In a MOSES lifting analysis, slings can be defined between the pulley and the body. However, after converting the model to SACS, equivalent members representing these slings are not available in the converted SACS model. It would be helpful if the...
13 days ago in  0 Needs review

Detailed modeling of seabed in MOSES

A feature to model the irregularities of the seabed enable users to efficiently map the contact forces between the seabed and the mooring lines. Detailed seabed helps in identifying the touchdown zones, unexpected snap loads on the mooring lines a...
28 days ago in  0 Needs review

Increase the allowable number of slings in the ASSEMBLY T-H_DEFINITION

Currently, the maximum number of permitted slings in a Tip Hook assembly is 7, i.e. six slings + the boom. It is common industry practice to lift with 9 slings; see attached, where eight slings participate + the boom. Moses is limited, and we are ...
3 months ago in  1 Planned

Pin & Bucket Guide a.k.a Stabbing Cone Connector

Connector that behave as pin/bucket guide Connector is activated when the pin is inside the bucket Reaction between the pin and bucket will influence the DOF of the lifted body (and not acting as LMU connector)
6 months ago in  0 Future consideration

Reload model command in Maxsurf Stability to update geometry after adjustment in Modeler

When we are designing a hull, we often go back and forth between Modeler and Stability, tweaking the hull shape, tank layout and compartmentation as we go. In this process, after making a change to the model in Modeler, we need to close and reopen...
2 months ago in  0 Needs review

Use only "actual FSM" for correction of GM when "simulate fluid movement" is selected

In Maxsurf stability, when using simulate fluid movement (SFM) to correct for free fluid surfaces in tanks, the equilibrium GM is still corrected using the FSM correction as defined in the loading conditions. However, the option to select FSM corr...
2 months ago in  0 Needs review

3D orbit functionality in perspective view. Match navigation to e.g. Rhino.

Current way of navigating the 3D perspective view is not very convenient. We use the perspective view in Maxsurf Modeller a lot especially, to glance over the geometry from different angles to inspect fairness. It would help if navigation in this ...
2 months ago in  0 Needs review

Option to apply load factor for selected structural members

Currently, with CASES_POST command, load factors can be applied to a full structure. In some scenarios, for example, during a lift analysis, higher load factors need to be applied to the associated BEAM elements only (eg: rigging connection beams)...
6 months ago in  0 Needs review

In stability analysis, can draft be reported based on the draft markers instead of the foremost and aft points

Currently MOSES reports draft based on forward and aft points of the vessel during a stability check. When draft markers are defined to match the specific loading condition, certification agencies expect the draft to be reported based on the defin...
about 1 year ago in  0 Needs review