Mast design software

Discussion in 'Software' started by holdfast, Nov 15, 2013.

  1. holdfast
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    holdfast Junior Member

    Hi all, I've been reading this forum for a long time, but this is my first thread. I am from Spain and I have just finished my engineering studies. Now I have to do my final proyect. I am very frustrated, because I don't have any idea that really motivates me to start working on it. I want to do something related to boats, they are my passion. My last idea was to study the mast loads on a sailing boat, as it has been allways very interesting for me. I wanted to ask you if you know any software that could help me with the drawings and calculations. Thank you very much in advance.
     
  2. navalex
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    navalex Junior Member

    Hi Holdfast.

    Welcome to this forum.

    What do you want to do? A Finite Element Analysis of the rigging?
     
  3. navalex
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    navalex Junior Member

    Firstly you have to understand the loads and forces on the rig. A good book that helped me very much was Principles of Yacht Design (Larsson & Eliasson). There is a chapter that covers the design of the rig using the classic NBS Standard.

    You can also have a look on my "final project" in this link:
    http://oa.upm.es/21556/

    The rigging design is in chapter 6... and it's written in your mother language ;)
     
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  4. MikeJohns
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    MikeJohns Senior Member

    Alejandro
    You are going to make it too easy for him ;)


    Holdfast
    As a starter I'd recommend you also have a good look at GL rules, I'll attach the pdf for rigs on boats under 24m and over 24 which gives a good idea of the approach class societies require.
    GL is becoming a very popular classification society for sailboat design and have recently merged with DNV. They are also the only ones that cover yacht rigs now.
     

    Attached Files:

  5. Alik
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    Alik Senior Member

    I believe RINa and BV also classify yacht rigs, for boats over 24m.
     
  6. holdfast
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    holdfast Junior Member

    Hi all, thank you very much for your replies. I didn't expect that much information from my first thread.
    I'm no sure about the idea of my proyect yet. Firstly, it has surprised me a lot that there are no specific rules about rigs design that must be complied before a boat goes to the market. On the other hand, I don't find any specific software about rig loads calculations.
    Correct me if I'm wrong, but what I see is that every case is different, and has to be designed depending on a lot of variables, there is nothing generalizable. This makes things much more difficult to me, there is no way to design just a rig, I have to go trough all the process about hull design, keel, righting moment, sails loads, hidrodinamics...
     
  7. PAR
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    PAR Yacht Designer/Builder

    Bingo, and welcome to yacht design . . .
     
  8. MikeJohns
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    MikeJohns Senior Member

    Any link to them Alex ? I thought they had deferred to ISO ?
     
  9. MikeJohns
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    MikeJohns Senior Member

    If you want to design a rig and not the whole thing then just ask for some figures off an existing design and take it from there.
     
  10. holdfast
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    holdfast Junior Member

    You are totally right MikeJohns, I am gonna have to end up doing that. But I don't want to work on something that is already designed, that doesn't moivate me. It may be better to design an improoved rig for an old boat for example. The question is to choose the boat and where to get all the specs and drawings
     
  11. Mikko Brummer
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    Mikko Brummer Senior Member

    You may want to look at http://www.craintechnologies.com/simspar/. Expensive, though, targeted for professionals, but very powerful.
     
  12. holdfast
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    holdfast Junior Member

    Thanks Mikko, that is what I was looking for. Looks like there is a Demo version, I am going to try. Are you working with this software?
     
  13. Mikko Brummer
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    Mikko Brummer Senior Member

    Yes, since its beginnings. Not for mast design but rather for rig tune - a great tool which also helps you to understand better what influences what.
     
  14. holdfast
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    holdfast Junior Member

    Thanks everybody for your replies, all this information is going to be very helpfull for me, because I want to to design a rig some day. But finally I have choosen another final proyect, I am going to study the loads on a Parasailing boat and design the winch system acording to it, I will keep you updated. Thanks again.
     

  15. holdfast
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    holdfast Junior Member

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