1. Section 10 Additional Meshing Tools

2. Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information Meshing Tools Besides the automated meshing tools, there are several semi-automated meshing tools to generate hex and wedge elements using Extrude, Revolve, Profile. This section covers details on how to use these tools. Additional Meshing Tools

3. Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information This feature can be accessed by using the “Extrude” dialog box in Geometry / Body / Create / Extrude Extrude

4. Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information Distance Normal to the element, Radial an axis, and Along Certain Direction. Plane This will extrude up to a plane The plane is defined by 3 nodes or a single tri elements. Extrude has several options Extrude

5. Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information Between Entities Extrude will be done between two entities. Upto Surface Extrude will be done within the given limit face. Extrude

6. Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information Extrude – Normal The surface meshed model contains tri3 elements. Pick one of the two larger faces and select Extrude. Enter the magnitude and direction. “Normal to Elem” will extrude the element in their normal direction The extruded body contains wedge elements Extrude

7. Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information Extrude – Plane Allows you to extrude the surface till the specified plane. The plane can be specified using three nodes or an element. Extrude

8. Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information Extrude – Between Entities This option allows you to extrude a face till another face, which is identical to the previous one. The two faces need not be of same dimension but they need to be identical in topology. Extrude

9. Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information Extrude edges Edges can also be extruded in any direction to obtain sheet bodies. Both Quad and Tri elements can be obtained in the extruded sheet. To extrude along the radial direction, “Radial” toggle should be on. Extrude

10. Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information Extrude – Upto Surface Extrude the entity within the given limit face. The two faces need to be of same dimension and they need to be identical in topology. Extrude

11. Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information Allows you to revolve Face/Edge/Vertex around an axis with desired number of elements. The axis and angle should be defined. Required number of elements can be specified for radial direction. Revolve

12. Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information Select the face to be revolved and choose the axis of rotation. Revolve

13. Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information The profile is defined by a set of nodes selected by the user. The shape of the face is defined by a polygon using the selected nodes in a sequence. This feature allows the sweeping of the profile. Once a profile is created, it can be saved and imported for latter use. Bolts, liners, valve seats can be defined using a profile and stored. Profile

14. Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information Using the Start / End / Restart buttons, select a set of nodes. Specify the angle of revolution and the axis about which the profile is to revolve. Enter the number of elements and the mesh size. Profile

15. Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information Press the Start button and pick the sectional points in order. After picking click End. Enter the mesh size and number of elements required around the circle. Profile

16. Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information Select Arbitrary axis and click two nodes to define the axis. Click OK to create the hex mesh. Profile