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MMarzana

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About MMarzana

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  1. Hi Tinh, Thank you once again but I cannot seem to find anything that will output everything I need... The K, M and V matrix are not a problem, but I would also like to get the Moment of inertia tensor, the COG and the total mass as output. Is this possible? Thanks!
  2. Hello Tinh, thanks for the quick reply! I can do that, but I need to get them as output of the simulation. Is there a way of doing that?
  3. Hey, how can I extract COG, Moment of Inertia and Mass as an output by running a static solution in optistruct? Thank you in advance.
  4. Hi, I have just updated to version 2017.2 and I got the same problem. I can add the elements through the interfaces panel but not by directly clicking on the group. It seems to me that this might be a bug in the system.
  5. Hello, I have updated the software from the 14 to the 2017.1 version and when I am trying to select the 2D elements to add to the BSURF group in order to define contact in a BCTSET card in NX Nastran user profile, no elements are selected. Is this a bug of the software or has there been a change in the way to specify contact of which I am not aware of? Thanks in advance.
  6. @Prakash Pagadala I updated to the 2017.1 version and now it runs. Thanks!
  7. hi @Prakash Pagadala Yes, I am trying to run a quasi-static non-linear optimization with contact. I am using version 2017.
  8. Hi, I am trying to run a topology optimization and at a certain point of the optimization I get the following error: Error #3423 : MUMPS solver encountered error with code -90. Does anyone know what this means and how it can be fixed? Thanks!
  9. The problem comes when trying to define the objective function. When I select the design variable temperature and the load step heat transfer and click on create, I get the non-compatibility error and no objective function is created.
  10. Hi Prakash, I have tried that and I got the same error. I cannot run the analysis as I do not have an objective function for the optimization. The load step is of the type heat transfer and the response of the type temperature so in my opinion they should be compatible.
  11. Hello all, I tried to complete the OS-5090: Thermal Optimization on Aluminum Fins tutorial and, after carefully following all the steps, when I try to create my response I get the same error. I have tried, as you suggested, deleting the load step and creating on from the analysis tab but I has not worked either. Is there anything wrong with the input model or any other way to work around this problem? I am working with the 14 version, with the latest update and hotfix. Has this problem been corrected in the 2017 version? Thanks a lot.
  12. Hello all, I have tried the OS-5090 Thermal Optimization on Aluminum Fins tutorial, and after following all the steps, when I try to create the Objective I get the same error. I have tried deleting the loadstep that already came created in the model file and made one myself using analysis --> loadsteps --> create but the problem persists. I am using the 14 version wiht the latest update and hotfix. Is there a way to work around it or is there anything wrong with the model? Is this solved in the 2017 version? Thanks a lot.
  13. Thanks Prakash and Tin! I was accessing it directly from the autocleanup tab and there the part of mesh creation does not appear. I just accessed it from the preferences tab and there it does appear
  14. Hi, I was editing the parameters file in the batchmesher tab but I cannot seem to find the way to access the Create Mesh section in it. I have checked the help file and I have seen that all of the rest of parameters are present in the pop-up screen, only the section refering to mesh creation is missing. However, when I open the .param file in a text processor the parameters corresponding to that section are included. How can I modify those parameters other than directly on the text processor? Thanks in advance!
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