ETV Murman (MPSV06) Creating hull from lines drawing

DELFTship forum Hull modeling ETV Murman (MPSV06) Creating hull from lines drawing

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    • #38658
      Don Prince
      Participant

      I am recreating the ETV Murman based of its lines drawing.

      However I came into trouble by recreating its hull. No program is set to loft based of Frames Verticals and Waterlines. I can not work of one of them as there are too less off each of them.

      The only way I can think of (and this is quite hard as this is a complex hull) is compleatly redoing the surface point for point on the known points. That is an agonizign amount of work.

      Is there a better way known to mankind?

      This is the location of the tender documentation btw:
      http://zakupki.gov.ru/pgz/public/action/orders/info/order_document_list_info/show?source=epz&notificationId=4669551

      Attached is the iges file I created from the lines drawing.

    • #38659
      Robert Holme
      Participant

      No attached IGS file

      Maryak

    • #38660
      Don Prince
      Participant

      My bad

      https://www.dropbox.com/s/l3ccpkvjlsthpgk/lines%20drawing4.1.2.dxf?dl=0

      The DXF has more lines

      I seem to not be able to upload attachements

    • #38661
      Robert Holme
      Participant

      Where did you obtain the DXF file?
      Get rid of the loft, depending on the CAD program lofting is usualy a disaster on ships hulls.
      IMHO you seem to have drawn every frame and this is not neccessary.
      What basis did you use for the underwater shape? To be accurate this needs a body plan of the hull. You can make assumptions based on the displacement but that is all they are, an educated guess.

      As i see it you have only used frames, (stations), for the dxf. If you can attach any hull drawings you have.

      To do this you need to reply not quick reply under the reply is a section for adding files and containing the acceptable formats.

      Attached is an fbm of the hull in plan and profile. It needs a bit more work to develop the hull form and the skeg has not been added

      HTH
      Regards Maryak

      Attachments:
    • #38666
      Don Prince
      Participant

      The lines drawing is an extract of the one in PDF.

      MPSV06010-03.pdf

      I have more of those, unfortunatly not in DWG. These lines are exported from PDF into Rhino.
      It was figuring out which one had the best lines and those I have used…

      Lofting is indeed not Always the best option however the other options other than redrawing did not seem to work.

      In the DXF there is multiple layers. With the skeg and bowtruster assembly and without. The denser frames are based of the actual construction drawings in the packet

      And the DWG’s do not upload… you can find these in this folder of the drawing packet: ТРП 7 МВтТехнораб проект 5DWG

      Ill try the older PDF ones:

      MPSV06_203-01.pdf

      MPSV06_204_1.pdf

      MPSV06_206_1.pdf

      I extracted those from these drawings.

    • #38667
      Don Prince
      Participant

      By the way, the DXF file is made by me, by extracting the lines and correcting them. There is still errors in the DXF but it contains all the available lines…

    • #38668
      Robert Holme
      Participant

      Hi Don,

      Thank you for the pdfs. I have downloaded them and will see what they contain in the next few days.

      Merry Xmas
      Maryak

    • #38669
      Don Prince
      Participant

      thank you,

      Merry Christmas aswell.

      They contain the same lines as in the DXF. I redraw most of them.

      The pdf’s are where the lines came from.

    • #38670
      Robert Holme
      Participant

      Hi Don,
      Attached are some files I derived from MPSV06010-03.pdf

      The body plan lacks the detail for the fairing where the bow thrusters are located.

      I Hope they help you

      Regards
      Maryak

      Attachments:
    • #38671
      Robert Holme
      Participant

      File 2

    • #38673
      Robert Holme
      Participant

      Pdf of Murman Lines

      Attachments:
    • #38674
      Don Prince
      Participant

      Thank you so much,

      The PDF seems to be empty Though,

      This is how I have been bussy. I am working on the full interior…

      https://www.dropbox.com/s/j7edyti1gzipgy3/Schermafdruk%202016-12-26%2022.30.19.png?dl=0

      Rgrds,

      Don

    • #38690
      Robert Holme
      Participant

      Wow Don,

      That’s absolutely first class :woohoo:

      Attached is a pdf and fbm which may be of use but you seem to be way past my efforts.

      Happy New Year
      Maryak
      Murmanall.pdf

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