A result reference file (DFR) can be imported by clicking the button. The DFR is a file that is required to see simulation results in the Animation View or Chart View. As the reference file, the DFR contains information about other files for the animation or chart as shown in table below. The DFR file and other simulation result files listed below are created automatically by the preprocessor and solver.
Figure 2.3: Simulation output files
| File | Description | Format | Analysis |
| DFG | Contains the graphics information file to represent the geometry of the simulation model. | Binary | All analysis |
| DFR | Contains the simulation result file information and file version. | Text | All analysis |
| DFM | Contains the simulation model information. | Binary | All analysis |
| RES | Contains the simulation results for all entities of the model in a time domain. | Binary | All analysis |
| SRES | Contains the total step information of the RES file. | Binary | All analysis |
| PLT | Contains the simulation results for chart only, excluding animation in the time domain. This file is generated optionally and is used to draw a chart with more time steps than the animation. | Binary | All analysis |
| SPLT | Contains the total step information of the PLT file. | Binary | All analysis |
| DISP | Contains the position and orientation of the body in time domain. | Binary | All analysis |
| STRAIN | Contains the strain of the flexible body in the time domain. This file is generated optionally and is used to display the strain contour. | Binary | All analysis |
| STRESS | Contains the stress of the flexible body in the time domain. This file is generated optionally and is used to display the stress contour. | Binary | All analysis |
| DFEIG | Contains the mode shape and natural frequency of the system or body. This file is used to display the mode shape animation or draw the natural frequency in the chart. | Text | Eigenvalue and Body eigenvalue analysis |
| DFMF | Contains the information used to create the modal flexible body. | Binary | Body eigenvalue analysis |
| DFFRT | Contains the life cycle and damage of the flexible body | Binary | Fatigue analysis |
Note: When the size of result file is very large, sometimes the postprocessor cannot load the simulation result or becomes very slow. In these cases, you can solve the issue by decreasing the degree of freedom of the model or the number of output steps. In most cases, however, you are not allowed to decrease the degree of freedom or the number of output steps for a chart. If you use the PLT file option, you can reduce the size of RES file by reducing the number of output steps for the animation while maintaining the number of output steps for the chart. The PLT file contains the following simulation results as compared to the RES file.
| Type | RES | PLT | Description |
| Node | O | X | Nodal results for the flexible bodies. |
| Node Set | X | O | Results of node sets for the nodal flexible body. |
| Modal Coordinates | O | X | Modal coordinates for the modal flexible body. |
| Rigid Body | O | O | Results of the rigid body. |
| Joint | O | O | Results of all joints. |
| Force | O | O | Results of all forces. |
| Contact | O | O | Results of all contacts. |
| Element | O | X | Elementary results for the flexible bodies. |
| EasyFlex | O | O | Results of all constraints or force entities for EasyFlex. |
| Equation | O | O | Results for the variable, 1st differential, and 2nd differential equations. |
| Function | O | O | Results for the function expression and function user subroutine. |
| Control | O | O | Results for the S-Input, S-Output. |
| Request | O | O | Result for the structural and kinematic requests. |
| Variable Block | O | O | Results of variable size entities such as contact points or loaded points on the c-load or p-load of EasyFlex. |
Differences between PLT and RES files