The Dynamic Paddle Shift tab of the Reactive Molding solver parameters (3D) dialog is used to specify values for paddle shift prediction related inputs for a 3D Reactive Molding analysis.
| Frequency of Core shift analysis | Pressures at different locations within the cavity vary greatly during the filling and packing phases, therefore, the Core shift analysis needs to be repeated several times to account for these pressure variations. |
| Perform Core shift analysis during pressure iteration | During the iterations of the pressure solution in the Fill+Pack analysis, the pressure value changes which affects the core shift prediction. This option specifies whether additional Core shift analyses should be performed during the pressure solution iteration. |
| Update mesh during Core shift analysis | When the predicted core shift is large, the resulting mesh distortion may make the Fill+Pack analysis unstable, and the analysis will stop. If this is the case, turning this option off will allow the analysis to complete, but the solution will be somewhat less accurate. |
| Calculate Core shift after filling phase |
If the Calculate core shift after filling phase option is not selected, then Core shift is only calculated during the filling phase. Whatever core displacement existed at the end of the filling analysis is assumed to stay unchanged during packing. If the Calculate core shift after filling phase option is selected, then Core shift calculations continue during packing also. |
| Analyze core using | Specifies which type of tetrahedral element to use for the core elements in the stress analysis of the core. |
| Use AMG matrix solver | The AMG solver improves the speed of warp analysis by using progressively coarser mesh grids for computations. |