Tutorial

[aitchem]

Hello,
I am having a go at creating my own "dream yacht".
I have aquired Surfaceworks marine, although used to Catia ( 8yrs Automotive.)
What I am looking for is the general sequence of hull creation, are there any tutorials out there.?


thanks
Howard

[lazeyjack]

if you download feeship, or delftship, (free) it starts a new design with your parametres, you can either stick with the round bilge default or change to chines, from there you can send your lines to your CAD programme

[Guest625101138]

Originally Posted by aitchem

Hello,
I am having a go at creating my own "dream yacht".
I have aquired Surfaceworks marine, although used to Catia ( 8yrs Automotive.)
What I am looking for is the general sequence of hull creation, are there any tutorials out there.?


thanks
Howard

Howard
A good design starts with a clear specification based on your priorities.

I have started learning about hull design after owning a number of different boats. I am as much interested in the design and what is possible as actually using the boat. I have learnt that using boats for enjoyment requires lots of time so my next real boat is my retirement project.

My priorities are:
1. Primary safety - strength to handle heavy and hard grounding, always buoyant even if swamped, self-righting
2. Secondary safety - speed, sea kindly, stability, pointing ability, redundant propulsion systems
3. Practical - easily handled by one person, operate with autopilot most of the time
4. Building and operating costs - has to be a hobby not a life
5. Comfort - good sleeping for a week or two, good working area
6. And so on

I have learnt a lot about displacement hull efficiency from building pedal powered boats. The viscous drag is easy to determine but wave drag is much more difficult. I use Leo Lazauskasus Michlet/Godzilla to optimise hull shape allowing for wave drag and it has proven very reliable for my operating regime. I use Freeship (now Delftship) to draw up hulls as this interfaces well with Michlet.

Once you have your priorities sorted out you have a starting point for the size of boat you would like and starting point for developing a detailed specification. This allows a rough calculation for displacement, design speed, stability and so on. The design is an iterative process trying to achieve the best compromise to suit your priorities.

Rick W.

[aitchem]

Hi,
I am more interested in the actual practice of producing the curves/surfaces.
My experimentations are not producing the desired effect and I am ending up "patching" in awkward areas.

I already have a layout and hull form in mind, quite similar to my own S&S.

thanks
Howard

[Guest625101138]

Originally Posted by aitchem

Hi,
I am more interested in the actual practice of producing the curves/surfaces.
My experimentations are not producing the desired effect and I am ending up "patching" in awkward areas.

I already have a layout and hull form in mind, quite similar to my own S&S.

thanks
Howard

Are you primarily interested in internal layout or hull performance?

Rick W.

[CGN]

This will help you learning how to lay out a hull, there are many ways to do it this is only a good tutorial on how to model a hull using this technique:

http://www.cadjunky.com/index.php/ma...how?id=3805430

And i y ou go here you will find tutorials for surfaceworks and multisurf

http://www.aerohydro.com/tutorials.htm

Also have a look at the maxsurf site i think they have some tutorials, this programs may be different but the techniques should work

[aitchem]

Hi,
Thanks for that, these sites are a big help and didn't come up on any searches, thanks.
I hope to produce an aluminium Swan 411 and adapt it to centre cockpit with a stern stateroom, purely acedemic at this time, but, you never know.

thanks
Howard