Thermal analysis
To run the model in batch mode, on a Windows machine, from a command line run
$ pan -q 06
On a Linux machine, from the terminal run
$ pan -q 06_linux
These files are identical in essence, but Windows and Linux do not have interchangeable text file formats. This will run the input files in the .que file in series. The input files must be in the same folder as the .que file. This allows users to easily simulate large batches of jobs from the command line.
The thermal analysis progress is written to file 06_thermal.out. To check progress on Linux, run
$ tail 06_thermal.out
or in Windows run
$ type 06_thermal.out
After the analysis completes, the last few lines of the output file 06_thermal.out should be similar to the following:
inc = 15 time = 57672.801 iter = 1 eps = 0.10649E+02 inc = 15 time = 57672.801 iter = 2 eps = 0.13443E-11 Finished writing file results\ 06_thermal_15.case Finished writing file results\ 06_thermal_15_c.case Writing record: 3, time: 57672.8014167935 Increment end CPU wall for increment 15 = 00:00:01.23, since start = 00:01:04.10 Layer end Mesh preview volume = 190987.524817100 Activated volume = 190987.524817100 Activated percentage = 100.000000000000 Finished writing file .\ 06_thermal.case Finished writing file .\ 06_thermal_c.case Analysis completed ************************ 1 Warning ************************ CPU wall for printing = 00:00:20.95 CPU wall = 00:01:04.18 Approximate single thread simulation time = 00:09:50.90 Peak RAM used for this process = 763,912 kB END Autodesk AM Process Simulation
Quasi-static mechanical analysis
Run the analysis from the command line:
$ pan -b 06_mechanical
After the thermal analysis completes, the .que file will automatically run the mechanical analysis immediately afterwards.
After the mechanical analysis completes, the last few lines of the output file 06_mechanical.out should be similar to the following:
---------------------------------- Substrate removal time increment ---------------------------------- inc = 17 time = 157672.80 iter = 1 eps = 0.24127E+06 inc = 17 time = 157672.80 iter = 2 eps = 0.17071E-07 Optimizing rigid body motion... Initial RMS displacement = 1.820660E+00 Optimized RMS displacement = 1.141508E+00 Number of optimization iterations = 270 Rotation matrix = 9.999833E-001 2.891338E-004 -5.770985E-003 -2.847255E-004 9.999997E-001 7.646769E-004 5.771204E-003 -7.630209E-004 9.999831E-001 Translation = 1.212278E-001 -6.187267E-002 -6.102925E-001 Finished writing file results\ 06_mechanical_17_f.case Finished writing file results\ 06_mechanical_17.case Increment end CPU wall for increment 17 = 00:00:04.04, since start = 00:01:43.59 Layer end ------------------------------------------------------ Total number of equilibrium iterations: 29 Mesh preview volume = 190987.524817100 Activated volume = 190987.524817100 Activated percentage = 100.000000000000 Finished writing file .\06_mechanical_f.case Finished writing file .\06_mechanical.case Analysis completed **************************** 1 Warning **************************** CPU wall for substrate removal = 00:00:04.10 CPU wall = 00:01:43.65 Total thermal & mechanical simulation time = 00:02:47.84 Approximate single thread simulation time = 00:27:41.78 Peak RAM used for this process = 3,666,768 kB END Autodesk AM Process Simulation
Results can be imported and viewed in Simulation Utility for Netfabb or ParaView.
Figure 2 shows the computed final distortion at three times: before the build plate is removed from the machine, after the build plate is removed from the machine, and after the part is removed from the build plate. Distortion is in mm with 5X magnification.
Figure 2: (a) After deposition and before build plate removal from the machine, and (b) After build plate removal from the machine
(c) After part removal from the build plate