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about carene...and software

  • Thread starter Thread starter Special-one
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to have fun a bit, I'm throwing down (very sketched) a building plan for a multihull of about 6,000 tons, about 135 meters long. to contain consumption, I designed a semiplanant hull (? until today I had only displaced) from the high coefficient of fineness (a hull "sle") which however involves a "instability" curtain of form. i.e. a hull that's a little sensitive to the ondous motion. as I thought of a boat type "small cruise ship full optional for bored caddisti", to create a stable "platform" I added two lateral floats of about 90 meters to the float thus obtaining a trimaran with modern forms (it is a bit the trend of the moment).
What do you say?
As soon as I can, I place an image of the "monster."
and what we have to tell you, for me that I am a neophyte seems like a space thing, we hope that he will be galvanized::biggrin:
 
.... we hope that he will be able to:biggrin:
That's the least problem. ##################### ###########################################################################################################################################################################################################################################

greetings and good year
Marco:smile:
 
That's the least problem. ##################### ###########################################################################################################################################################################################################################################

greetings and good year
Marco:smile:
To you, Sam, I have to put you in the need...:biggrin:
Good year, my friend.
 
I attach two images of the building plan that I am having fun doing on these days uggiose.
What do you say?
p.s. we find a name to open a special 3ad.
5415 modificato.webp an image
5415 modificato_Linesplan.webp the building plan
 
I attach two images of the building plan that I am having fun doing on these days uggiose.
What do you say?
View attachment 12716 an image
View attachment 12717 the building plan
handle _exa_..
Too small pictures, I can't read anything. I wanted to try to reproduce it with swx (who you used? ).

but the plan "invented" you ex novo or are they old drawings of already navigating hulls?
p.s. we find a name to open a special 3ad.
il triMara :biggrin: (or the 3 marrani... in rotation in those three we are all:smile:)

greetings
Mar
p.s. I had a boat seat up to 9mt, it will be a little difficult to get him in.. I'll ask the pardon. .
 
Exa compliments, it looks really good.
sampom do not worry, when you least expect it comes a nice dwg (and also a draft of the 3d model that seems to me already made) and then they are our cabbages.
 
handle _exa_..
Too small pictures, I can't read anything. I wanted to try to reproduce it with swx (who you used? ).

but the plan "invented" you ex novo or are they old drawings of already navigating hulls?


the threeMara :biggrin: (or the 3 marrani... in rotation in those three we are all:smile:)

greetings
Mar
p.s. I had a boat seat up to 9mt, it will be a little difficult to get him in.. I'll ask the pardon. .
I did the plan (but it is not that you invent it, you refer to existing series) using a special sw. I didn't make a semiplanant hull but a displacement because I'm a little more practical and I do before...:biggrin:
then I saved it as an image but it was too big and I couldn't attach it so I had to resize it.
If you wait a few days that I verify the points, I send you the so-called "relevated to the room" that is the coordinates in the space of the famine. at that point you can create the "study orders" and then join them with the surfaces. so you have your hull. Anyway, I'll explain.
When you rebuilt it with swx, you send it back to me...
and we'll only be at the beginning.
 
precise that for the central carena I "inspired" to an existing series even if I remade it changing the size in a "heavy" way.
the two side hulls instead, I am "inventing" if so can be said.. .
Unfortunately not having a naval tank available, we will never know whether it is okay or whether it is a ciofeca.
 
I attach two images of the building plan that I am having fun doing on these days uggiose.
And then I'd like some more exquisitely technical details.
Okay, you started off a monohull (so displaced? by lines and volumes I would say yes) and you added those "scarponi". but according to what reasoning? Why "all aft"? How do they affect the propulsion? how do you determine the dimensions, volumes and distribution of any masses within? how does it become semiplanant, only for the greater float given by the appendices (which eventually serve as anti-roll stabilizers?)? it does not seem to me that there is a big diference of positioning and navigation, on the contrary, gives the idea of being slightly "approved"; I imagine that for the "walking comfort" you want to make it stay basically "on the floor".

In short, explain where we start and how we proceed in a naval project, we want to be more active.

greetings
Marco:smile:
 
And then I'd like some more exquisitely technical details.
Okay, you started off a monohull (so displaced? by lines and volumes I would say yes) and you added those "scarponi". but according to what reasoning? Why "all aft"? How do they affect the propulsion? how do you determine the dimensions, volumes and distribution of any masses within? how does it become semiplanant, only for the greater float given by the appendices (which eventually serve as anti-roll stabilizers?)? it does not seem to me that there is a big diference of positioning and navigation, on the contrary, gives the idea of being slightly "approved"; I imagine that for the "walking comfort" you want to make it stay basically "on the floor".

In short, explain where we start and how we proceed in a naval project, we want to be more active.

greetings
Marco:smile:
simple, you need a watch and a bucket.
If the sky is serene, you're fine, it's already written.
 
And then I'd like some more exquisitely technical details.
Okay, you started off a monohull (so displaced? by lines and volumes I would say yes) and you added those "scarponi". but according to what reasoning? Why "all aft"? How do they affect the propulsion? how do you determine the dimensions, volumes and distribution of any masses within? how does it become semiplanant, only for the greater float given by the appendices (which eventually serve as anti-roll stabilizers?)? it does not seem to me that there is a big diference of positioning and navigation, on the contrary, gives the idea of being slightly "approved"; I imagine that for the "walking comfort" you want to make it stay basically "on the floor".

In short, explain where we start and how we proceed in a naval project, we want to be more active.

greetings
Marco:smile:
It was just an exercise. .
We have not yet defined what we want to do. for this I would like to open a special 3ad that we could call "Laodice project" a name that could go well, is not inflated (in fact, if you do not look for it you do not even know that it exists) and sufficiently "mysterious".
So let's decide: do we want to make a boat?, a megayacht?, a digger?... because this will be the choice that will affect all the next.
Once you define what you do, you have to establish its size. I wanted to make an example. I imagined making a megayacht from about fifty guests plus the crew, full optional, with "unusual" forms and maybe innovative on which to unleash the fantasies of those who will want to collaborate on this which remains a "exercise of style".
on which to experiment software solutions etc...
I then started from a displacement famine maintaining a rather low l/b ratio (length/width). There are appropriate tables indicating the correct values depending on the type of vessel. For example, for a large slow cargo ship this value is between 5.5-7, in our case it is worth 3,77. having a very slender and sharp bow (you will have noticed the vertical seacut as the ships of the 1st World War). this choice was made to "accentrate the masses" so do not carry weight beyond the ppav (perpendicular ahead). In this sense the "scarponi" whose task is to offer a stable platform to a slender hull. so they are quite backward always to not have weight where you do not need.
to answer your question, the hull becomes semiplanant not for the boots, but for the hydrostatic drive received at a certain speed. to obtain this it is necessary to draw the hull with appropriate forms that facilitate such thrust formation. not being "ferrato" in matter, I preferred to let it go.
I maintain displacement, raise the "platform" without widening the lines of the hull but I cover with two "stabilizers" from very thin forms, which worsen the performance in case of rough sea (but the ships from cruise avoid marose exaggerated formations) but give me a large base on which to create my superstructures. Moreover they can contain liquid cases, auxiliary services, etc. etc.
I hope I've been clear enough, if not ask.
Meanwhile, let's settle what we want to do, okay? :finger:
 
I say my nose.
If we have to achieve a style exercise, the yacht seems to me to be the most appropriate category.
a trawler or a digger or a icebreaker, I think they are not suitable for such an exercise.
 
I say my nose.
If we have to achieve a style exercise, the yacht seems to me to be the most appropriate category.
a trawler or a digger or a icebreaker, I think they are not suitable for such an exercise.
Oh, come on! !
:biggrin:
 
I really like the gozzo, but do you see it with modern and elaborate lines?
to make a gozzo according to me you have to go to an axe.... without executive drawings does it better than we could think it.
We could contact one and make a well-made model based on his directions.
 

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