hull type

hi,

Iam doing the initial design of a barge
with a length of 100m, beam 30m and draft of 5m , speed is 5Knots.it dead wt is almost 13000T its an operation barge not carry the product.


its not moving frequently also (once in six month) how i will decide the hull sahpe ??
whether round hull or flat bottom which one is good for construction and for operation cost......
and to know bulbus bow is needed ....

 

Hire a qualified designer . . .

 

Hello Par......
THanks....Iam a naval architect student doing a project...
Can you pls help me how to deside. the hull form...posted in the previous thread,,, with your knowledge,, and experience,./, We are studyng some general things only, i just want to know how a hull form will be selcted in real case design..
what are all the parameters you will be looking...

 

if you are a student maybe you could consider studying the results with different options and then choosing the one that seems the best.

That way you will learn much much more - than if someone tells you - flat - no bulbous bow...

And I am not a NA and just a boating enthusiast I guess but

a) operating cost once a 6 month is pretty irrelevant compared to other costs.
b) 6 knots on 100m vessel is very modest - bulbous bow seems totally useless and probably just on the way. Do you know why bulbous bows are used and how they work? you will find plenty of info with the search.
c) flat Seems more stable and easier to get huge displacement

 

Sreenath00, no offense intended, but it's a matter of education and experience. Someone asking the questions you are, has absolutely no right to even consider drawing up a vessel of this class. Just engineering the structure to withstand the many forces that will impose on it, will require considerably more ability then you currently have. This says nothing of the regulation requirements and other standards that should be met to insure safety and compliance. This also says nothing of the hydrodynamic elements of a 300'+ long craft. Please hire a professional to engineer your barge. No novice, amateur or design student should ever attempt something on a scale like this. A 3 meter sailing dinghy is one thing, but for God's sake a 300' barge, be reasonable, hire a pro. Again, I'm not trying to insult you, but ask yourself this question, would you let a novice design a 20 story office building, then expect people to trust your calculations as they walk around in it? Me neither . . .

 

If I understood right its a student assignment - not an assignment for a real project.

That being said I would think that the school would have provided the tools for answering these questions.