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Recent content by drir

  1. drir

    Get deformation results in report file or PCL function

    I have found how to save a result (rpt) file which I opened in Excel and loaded in Matlab. Thanks
  2. drir

    Get deformation results in report file or PCL function

    Dear all, I have calculated the deformation of a beam (2D) in Patran/Nastran 2012. I can plot the deformation in Patran but I want to now the exact deformation along the length direction for further analysis in Matlab. How can I do this? Preferably, I would like to have a polynomial that...
  3. drir

    FEM NX7.5: specify load with formula

    Hi, I'm trying to add a load (pressure) on a surface. But I don't want to set a constant value for the pressure. I want to specify the pressure with a formula (polynomial). The dependent value is the z-coordinate. How can I do this in NX7.5? Thanks
  4. drir

    Permeability as a function of gas

    Hi, Can someone tell me why the permeability of a porous material is greater for nitrogen than for air? Thanks
  5. drir

    Cutting force: formula

    I do not see any formula in this file in order to calculate my cutting forces.
  6. drir

    Cutting force: formula

    Oh sorry! It is for the inside turning of beryllium copper.
  7. drir

    Cutting force: formula

    Hi, I want to calculate the tangential cutting force Ft. Can someone give me a good reference or the formulas?
  8. drir

    Thermal clamping of a ring: clamping force

    Sorry desertfox, but when I had a closer look to the example it is was not what I was looking for. However, I found it here: http://www.faculty.fairfield.edu/wdornfeld/ME311/PressCylinderHam.pdf
  9. drir

    Thermal clamping of a ring: clamping force

    Thx! That is what I was looking for.
  10. drir

    Thermal clamping of a ring: clamping force

    Hi, I want to machine the inside of a copper ring. Therefore, I want to clamp the ring (diameter 25 mm, length 6 mm) around its outside by making aluminium clamping part. By heating the aluminium clamping part, assembling the ring in the clamp and cool down, both are fixed. My question is: how...
  11. drir

    velocity field from pressure distribution

    Hi, I have calculated the pressure distribution over a 2D porous material with the finite difference method. However, now I want to calculate the velocity field or streamlines of the air flowing through this porous material from my pressure distribution. I have thus the pressure value on each...
  12. drir

    Pressure drop plenum chamber

    Hi, How can I calculate the pressure drop of air streaming in a plenum chamber? Thx
  13. drir

    How to add a new material to the library in NX 7.5?

    Hi John, It works fine! However, in order to make it more automatic, I cannot find the option 'MatML File Name' for browsing to my material file. Or did you mean 'Library File Name' where I enabled the 'Site MatML Library'? I tried to put the path of my material file here, closed NX, started NX...
  14. drir

    How to add a new material to the library in NX 7.5?

    Hi John, Under Tools -> Material Properties I made already a new material but when I create a new part or I close NX, I have to create the material again. Is it not possible to add a new material to the material library which can be used every time you want, like you can choose the 'standard'...
  15. drir

    How to add a new material to the library in NX 7.5?

    Hi, I want to add a new, user specific, material to NX 7.5 which I can use for each part I will make in the future without creating it each time. How to do this? I opened the physicalmateriallibrary.xml and phys_material.dat file already with the standard NX materials. However I tried to add a...
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