Section 10 Additional Meshing Tools. Copyright © 2010 Altair Engineering, Inc. All rights...
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Transcript of Section 10 Additional Meshing Tools. Copyright © 2010 Altair Engineering, Inc. All rights...
Section 10
Additional Meshing Tools
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
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
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
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
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
ExtrudeExtrude
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
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
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
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
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
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
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
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
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
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