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  1. oliebol

    Nibral thruster into an aluminium tunnel

    Hello Guys, Currently our company is engineering a Nibral (bronze)thruster into an aluminium (5083) tunnel. Both tunnel and thruster are located in sea water environment We know that these materials have a large potential difference so we use a gasket to prevent corrosion of the aluminium...
  2. oliebol

    Best Equation to determine thruster force?

    Ok, Let me rephrase my question. What are the inputs to determine a thruster in general? The result is in kN. Thats a given. But what should I put in for the rest of the equation and what does the equation look like? I have seen some calculations before, involving windarea and a pivot point...
  3. oliebol

    Best Equation to determine thruster force?

    That would be a nice way to check the equation, but i need a proper equation first bcs the yacht is still in the design phase. Unigraphics NX4,NX3,NX2,R17 Inventor 2009, 2008,11,10,9,8,7 Solid Edge 20,10,9,8 Solid Works 2000,98 Mechanical Desktop 4,3 Autocad 2004DX,2000,R14, R12 Teamcenter...
  4. oliebol

    Best Equation to determine thruster force?

    Hello all, What is the best equation to determine the reaction force for a tunnel thruster (bow or stern)? I heard about involving windarea and even transverse current. Please help me out! Greetz, Martin Unigraphics NX4,NX3,NX2,R17 Inventor 2008,11,10,9,8,7 Solid Edge 20,10,9,8 Solid...
  5. oliebol

    physical properties for 3D CAD materials

    Thanks all, The site with best/most results is: www.mat24.de Greetz, Martin Unigraphics NX4,NX3,NX2,R17 Inventor 2008,11,10,9,8,7 Solid Edge 20,10,9,8 Solid Works 2000,98 Mechanical Desktop 4,3 Autocad 2004DX,2000,R14, R12 Teamcenter Express 3, 9
  6. oliebol

    physical properties for 3D CAD materials

    Thanks Cory, Are there other sites you know which use materialnumbers. Such as 1.4404? Greetz, Martin Unigraphics NX4,NX3,NX2,R17 Inventor 11,10,9,8,7 Solid Edge 20, 10,9,8 Solid Works 2000,98 Mechanical Desktop 4,3 Autocad 2004DX,2000,R14, R12 Teamcenter Express 3, 9
  7. oliebol

    physical properties for 3D CAD materials

    Hi all, Currently I am filling a material property list to insert in 3D CAD. My company uses several types of steel with descriptions as: - 16MnCr5 - C45 - AISI 316 - etc. In 3D CAD it is possible to add properties such as density, specific heat, poissons ratio etc. Where can I find...
  8. oliebol

    Spiral Beval Gear with 4:1 ratio ?

    Yes there is, ATA gears in Finland up to 7:1 when i last needed them Greetz, Martin Unigraphics NX4,NX3,NX2,R17 Inventor 10,9,8,7 Solid Edge 10,9,8 Solid Works 2000,98 Mechanical Desktop 4,3 Autocad 2004DX,2000,R14, R12 Teamcenter 9
  9. oliebol

    Bearing clearance

    Are the axial forces on your output shaft bi-directional? If not, you can fill up the tolerance zone in one direction and eliminate the excessive clearance necessary for your bearings, but damaging your gearteeths. If so, there are certain types of bearings which have smaller than average...
  10. oliebol

    adjust date format in title block

    how can I adjust the date format in inventor (10) In my Title Border I inserted the variable <ENG APPROVED BY> Whenever I set a date for approval (say today) it shows month, day, year How can i change it to year, month, day Thanks already Unigraphics NX4,NX3,NX2,R17 Inventor 10,9,8,7...
  11. oliebol

    ISOMETRIC SECTIONS in 2D environment

    Thank you all for your input. It seems my problem lays in one of the parts of my assembly which is preventing the isometric cross-section. I tried it with other parts and it works properly. Martin Unigraphics NX4,NX3,NX2,R17 Inventor 10,9,8,7 Solid Edge 10,9,8 Solid Works 2000,98 Mechanical...
  12. oliebol

    ISOMETRIC SECTIONS in 2D environment

    Hi Powerhound, Thanks for your reply, but it still is not working. perhaps because we use IV 10? I make a base view looking at the shaft end Then I make a section through the hart which can only be projected by the section line(s). So within this command is no option for isometric...
  13. oliebol

    ISOMETRIC SECTIONS in 2D environment

    Hi All, How can I section ISOMETRIC VIEWS in the 2D environment? I have a driveshaft assy, which I want to show in isometric position in my drawing with a 120 degree cut out. to show it's internal parts clearly assembled. Inventor even advertises with this feature (see link below)...
  14. oliebol

    auto-scale a drawing

    When A,B,C is not an option anymore let a trainee do all the rescaling. Every day 2 hours of rescaling and in one week the job is done. If you are the trainee then I wish you good luck :-) Unigraphics NX4,NX3,NX2,R17 Inventor 10,9,8,7 Solid Edge 10,9,8 Solid Works 2000,98 Mechanical Desktop 4,3...
  15. oliebol

    auto-scale a drawing

    The easiest way to maintain a family drawing at optimal scale is to use A,B,C dimensions referring to a dimension table. In this way you also have the overview of all family members within just 1 document. Have used this system in Unigraphics NX. Not yet in IV. Unigraphics NX4,NX3,NX2,R17...
  16. oliebol

    Constraints and origin

    try right-clicking feature in the browser bar and select 'show dimensions' Unigraphics NX4,NX3,NX2,R17 Inventor 10,9,8,7 Solid Edge 10,9,8 Solid Works 2000,98 Mechanical Desktop 4,3 Autocad 2004DX,2000,R14, R12 Teamcenter 9
  17. oliebol

    equation difficulties

    hello Jozsef and Btrueblood, Sorry for my late response. I forgot about my own thread :p Equations are a bit tough to handle in IV. In order to use units correctly within an equation you sometimes have to use a little trick. In my example above you see that I use a variable Arclength in my...
  18. oliebol

    ASME 3D ANNOTATION

    you can handle tolerances in the 3D environment. Open a part. just click on a feature in the browser bar and select show dimension. click on a dimension and select dimension properties. Now you are able to set the tolerance in 3D environment instead of 2D drawing. Just remember that the link...
  19. oliebol

    COG animation in Inventor

    I think you should use a combination of Inventor and 3D-Studio. Use inventor for setting up the models including parametric dimensions. then use 3D-Studio for some kind of animation. Unigraphics NX4,NX3,NX2,R17 Inventor 10,9,8,7 Solid Edge 10,9,8 Solid Works 2000,98 Mechanical Desktop 4,3...
  20. oliebol

    Reorganizing Inventor Files

    David, In 3D the only way to handle a job properly is to think TOP-DOWN and work BOTTOM-UP. Good luck again Martin Unigraphics NX4,NX3,NX2,R17 Inventor 10,9,8,7 Solid Edge 10,9,8 Solid Works 2000,98 Mechanical Desktop 4,3 Autocad 2004DX,2000,R14, R12 Teamcenter 9

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