Section 10 Additional Meshing Tools. Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information Meshing

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


This feature can be accessed by using the “Extrude” dialog box in Geometry /

Body / Create / Extrude

Extrude


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


Between Entities

Extrude will be done between

two entities.

Upto Surface

Extrude will be done within the

given limit face.

Extrude


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


Extrude – Plane

Allows you to extrude the surface till the specified plane. The plane can be

specified using three nodes or an element.

Extrude


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


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


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


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


Select the face to be revolved and choose the axis of rotation.

Revolve


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


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


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


Select Arbitrary axis and click two nodes to define the axis.

Click OK to create the hex mesh.

Profile

Documents

Section 10 Additional Meshing Tools. Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information Meshing