** WARNING 2302004 ** The specified cycle time for the cooling analysis is too short to guarantee a frozen part at ejection for the optimized cooling channels. The optimization may result in a more uniform temperature distribution across the part that will result in less thermal induced warpage. However, the more uniform temperature distribution may result in a hotter part that has not frozen at ejection. Increase the specified cycle time by doing an Automatic cooling analysis on the optimized layout to determine the optimum cycle time to guarantee a frozen part at ejection. Check this calculated cycle time on the initial model to ensure that the optimized layout is working as expected in comparison to the initial layout with the same cycle time.
The optimized cooling channel layout, with the processing conditions provided from the initial case, does not result in a frozen part at ejection. If the aim of the optimization is to reduce temperature induced warpage with a more uniform temperature distribution across the part, the resulting layout could result in a part that is not frozen at ejection. At ejection, the part may have a higher but more uniform temperature distribution across the part resulting in a part that has not frozen. For a part that is not frozen at ejection the cycle time needs to be increased.
Perform an automatic cooling analysis on the optimized cooling channel design by going to the Process settings of the model and setting the Injection + packing + cooling time option to Automatic. Then using the Edit target ejection criteria option, the Minimum part frozen percentage at ejection value can be set. This automatic cooling analysis performed on the optimized cooling layout will result in the minimal cycle time that will guarantee the target percentage frozen part at ejection time. This cycle time can be used as the specified cycle time for an analysis of the initial cooling channel design to compare with the optimized design.