【正文】 des at the fixed end of the core.13. In the Input Parameters section of the Fixed Constraint tool, select Coreshift Analysis from the Use constraint in drop down box, then select Apply to apply the fixed constraint.14. Rename the layers with core elements in them to:? Core nodes? Core tetras? Core constraintsThis prevents duplication of existing layer names, and allows you to easily identify the core layers when the core is added to the model of the part.15. Select (File Save) to save your study.16. Open the study containing the model of the part, and add the study containing the core model to it. How to?The model is now ready to be used in a Coreshift analysis.Importing a model of the core from a CAD programYou can import the core model from a CAD program by following the instructions below. Alternatively you can create the core for a Coreshift analysis using an existing model. How to?If you want the core to extend past the end of the part, use the Create Inserts tool to create a mold insert. How to?You can prepare the core while it is mesh if the starting point of the core is the mesh of the part, originally exported from MPI. This ensures the mesh of the core will match the part perfectly. If you are importing the geometry of the core created in a CAD package, it will be difficult to match the surface mesh between the core and the part.1. Import the CAD model of the core into a new study, using a Fusion mesh with a similar density to the part model. How to?2. Double click the mesh icon in the Study Tasks pane to create the Fusion mesh.3. Repair the mesh where necessary to ensure it has no errors. How to?4. Change the properties of the elements on the Core elements layer to Part Surface (Fusion). How to?5. Change the mesh type to 3D and remesh the core. How to?Tip: Use a minimum of 4 elements through the thickness of the mesh.Note: The core mesh and the part mesh must be within the Surface Matching Tolerance value (default: ).6. Set the Property Type of all elements on all layers to Core 3D. How to?Tip: The name of the property assigned will be displayed in the analysis logs. If you have multiple cores, you can apply a separate Core 3D property with a different name to the elements in each of the cores.7. You can change the material of the core and the local mold surface temperature control by selecting all elements on all layers, then editing their properties (Edit Properties).8. You must set a fixed constraint on the nodes at the fixed end of the core, where it joins to the mold. Select (Analysis Set Constraints Fixed Constraint).9. Select all the nodes at the fixed end of the core.Tip: Ensure that the Edit Banding selection Enclosed Items Only option is set and that you rotate the part so the nodes you want to select are in a line. This stops unwanted nodes from being selected.10. In the Input Parameters section of the Fixed Constraint tool, select Coreshift Analysis from the Use constraint in drop down box, then select Apply to apply the fixed constraint.11. Rename the layers with core elements in them to:? Core nodes? Core tetras? Core constraintsThis prevents duplication of existing layer names, and allows you to easily identify the core layers when the core is added to the model of the part.12. Select (File Save) to save your study.13. Open the study containing the model of the part, and add the study containing the core model to it. How to?The model is now ready to be used in a Coreshift analysis.Modeling the core using mold insertsIf you want the core used in a Coreshift analysis to extend past the end of the part, use the Create Inserts tool to create a mold insert by following the instructions below.Alternatively you can create the core using an existing model. How to?Or, you can import the core from a CAD program. How to?Note: Ensure the part uses a Fusion mesh. If your part uses a Midplane mesh, convert it to Fusion mesh before following the instructions. Make sure the mesh has no errors.1. It is easier to use the Create Inserts tool when you hide the elements of the part that are not in contact with the core.a. Create a new layer to hold the noncore elements. How to?b. Assign all elements not touching the core to the new layer. How to?2. Select (Modeling Create Inserts) to display the Create Inserts tool.3. Select the elements on the current layer. These should be the only elements that touch the core. Select the direction in which the core is to be projected and specify the length of the core as the projection distance (enter a negative value if projecting in the negative direction of the selected axis), then click Apply.Tip: If you do not get the expected results, click Edit Undo and repeat this step.4. Hide all layers apart from the newly created Mold insert layer created by the Create Inserts tool. Rename the Mold insert layer to Core elements.5. Change the properties of the elements on the Core elements layer to Part Surface (Fusion). How to?6. Change the mesh type of the elements on the Core elements layer to 3D and remesh the core. How to?Tip: Use a minimum of 4 elements through the thickness of the mesh.7. Rename the New tetras layer to Core tetras. Rename the New Nodes layer to Core Nodes. This allows you to easily identify the core layers.8. Set the Property Type of the elements on the Core elements layer to Core 3D. How to?Tip: The name of the property assigned will be displayed in the analysis logs. If you have multiple cores, you can apply a separate Core 3D property with a different name to the elements in each of the cores.9. You can change the material of the elements on the Core elements layer and the local mold surface temperature control by selecting the elements on the Core elements layer, then editing their properties (Edit Properties).10. You must set a fixed constraint on the nodes at the fixed end of the