Tutorial

Discussion in 'Software' started by aitchem, Aug 11, 2007.

  1. aitchem
    Joined: Sep 2003
    Posts: 73
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    Location: Aberdeen UK

    aitchem Junior Member

    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
     
  2. lazeyjack

    lazeyjack Guest

    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
     
  3. Guest625101138

    Guest625101138 Previous Member

    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.
     
  4. aitchem
    Joined: Sep 2003
    Posts: 73
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    Location: Aberdeen UK

    aitchem Junior Member

    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
     
  5. Guest625101138

    Guest625101138 Previous Member

    Are you primarily interested in internal layout or hull performance?

    Rick W.
     
  6. CGN
    Joined: Jan 2003
    Posts: 547
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    Location: MX

    CGN Senior Member


  7. aitchem
    Joined: Sep 2003
    Posts: 73
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: Aberdeen UK

    aitchem Junior Member

    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
     
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