Hi to all,
Is it possible to model compartments from a combination of surfaces and linear restraints?
For example if I have a surface for a deck (which has curvature so can't use a basic dimensional constraint) is it possible to restrain a compartment with one surface and then 5 linear dimensions? Similalry if I have 2 surfaces for 2 decks is it possible to use the two decks to limit the upper and lower bounds of a compartment and then 4 dimensional restriants? I have experimendted with this and when I recalculate tanks and compartments the compartement disapears so assume I am going wrong.
Thanks,
Andy.
Hi Andy, Can you tell us if you are asking about MOSES or Maxsurf?
Thank you,
georgina
Hi Georgina,
I am using Maxsurf Stability. I am trying to find the most efficient way of modelling internal compartments between decks (where the decks have allot of sheer at the extremities of the ship i.e. modeling tapered box shape compartments would not be accurate enough. I thought I could do this by having internal structure surfaces to limit one of the edges of the compartment but when I do this the compartment seems to disapear during forming...
What I want to avoid is having to make hundereds of internal surfaces I would prefer only have surfaces for the decks as the vertical walls of compartments are uniform and could just follow a boundary box as opposed to surface boundaries.
The compartment forming works by Boolean operations on closed contours. The compartment is a series of sections calculated at intervals along the length of the compartment. At each longitudinal position, up to three contours are formed and intersected to give the compartment section:
With an unclosed contour, e.g. a line, it is not possible to determine which part of the hull contour defined the compartment.
I couldn't inline any images (always easier with pictures) so here is a word document which I hope will help visualise whats going on ...
Pat,
Thanks for that. Is it therefore possible to define a compartment with:
upper limited by a surface, lower limited by either a surface or the hull shell, the horizontal constraints by a dimension?
thanks
andy
I’ve looked at the word document and see what is being done but I am trying to understand if a compartment can be defined with a combination of surfaces and dimensional limitations or if using surfaces the compartment can only be done with surfaces.
effectively I need a way to define compartments between decks (decks are curved therefore using surfaces) and want to avoid needing to make hindered of surfaces to define every internal wall or bulkhead and it’d be easier to use surfaces to limit vertical constraints of the compartments and dimensional values to limit longitudinal and transverse limitations.
I really hope this is possible.