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  1. Fite

    NX Nastran topology optimization with SOL101

    Hi, generally spoken, you are right. But SOL200 does not support topology optimization!!! That's why your answer is of no benefit at all. Kind regards
  2. Fite

    NX Nastran topology optimization with SOL101

    Hallo all, for the input file below I'll get the following error messages. I'd like to minimize mass (MASS) while the compliance(COMP) stays above 80% of the starting compliance. *** USER FATAL MESSAGE 5006 (APPEND) INPUT FILES HAVE DIFFERENT RECORD TYPES *** SYSTEM FATAL MESSAGE 3007...
  3. Fite

    NX MSC Nastran Equivalence (TOPVAR & DRESP1)

    Hello alltogether, I'm searching for the equivalence of TOPVAR and DRESP1 in NX Nastran. I have to use TOPVAR and DRESP1 in a NX Nastran SOL 200 simulation and I don't know how to figure it out. Can anyone give me a hint? Kind regards Fite
  4. Fite

    SOL 200 Problem

    Hello all, running the script below, I'll get the user fatal messages: *** USER FATAL MESSAGE 316 (IFPDRV) ILLEGAL DATA ON BULK DATA ENTRY DRESP1 DRESP1 1 FRMASS FRMASS *** USER FATAL MESSAGE 316 (IFPDRV) ILLEGAL DATA ON BULK DATA ENTRY DRESP1 DRESP1 2 COMPLI COMP *** USER FATAL...
  5. Fite

    SOL 200 - Problem with DRESP1 and TOPVAR

    Hello, I'm trying to run a simple topology optimization with NX Nastran and SOL 200. I've put the input-file to the appendix (see link below). When I start calculating, I'll get the UFM 316 and 307: *** USER FATAL MESSAGE 316 (IFPDRV) ILLEGAL DATA ON BULK DATA ENTRY DRESP1 DRESP1 1...
  6. Fite

    Membrane, bending and peak stresses from von Mises

    Hello everyone, I’m using Patran 2013 and the MSC.Nastran solver. For a 3D pipe assembly, I calculated the von Mises stresses. Now I need to calculate the membrane, bending and peak stresses from the von Mises stresses and evaluate these stresses due to a given standard specification. In ANSYS...
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