Barge launch stability
The standard commands to calculate wind heeling arm are:
hstatic
rarm inc num -wind
report
end
The above makes the assumption that you have positioned the cargo and the barge system at the condition (draft, roll, trim) you are interested in.
I think there is more to your question, however, I do not want to infer.
I hope the above helps.
Georgina Maldonado
MOSES Product Manager
How about equation/formula to determine wind heeling arm that used in moses ?
Hi Muhammad,
The equations are those found in the regulations. You can designate which regulation to use with the "&env" command. There is already a post about this. Please see the following link.
https://communities.bentley.com/products/offshore/w/wiki/29475/wind-moment-calculation-for-use-in-stability
based on the rule that the heeling arm is vertical distance, in meters (feet), from the center of A to the center of the underwater lateral area or approximately to the one-half draft point, so if I have barge 14 ft (depth)) and 7 ft (draft) that the heeling arm is 7 ft, but the results is different from the moses results in the picture above. The heeling arm is 2.59 ft (moses results smaller than the rule)
Hello Muhammad,
I do not know how you have modeled the wind area. And I have not seen your hand calculations. It is difficult for me to respond.
How about you show the results of:
&summary
compart_sum piece
That will at lest show if the area is being defined by panels.
If you would like to open a service ticket please use the Connection Client that was installed with the software.
the results that I have shown are moses example " m_stab.cif " (http://bentley.ultramarine.com/hdesk/runs/samples/hystat/m_stab.htm)
You are comparing these to hand calculations?
I am not following your above explanation. Please keep in mind the arm we are showing is normalized. the value used is part of the table header.
Can you review and try to explain your point in more detail?