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HM-3000: Creating 1-D Elements

HM-3000: Creating 1-D Elements

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HM-3000: Creating 1-D Elements

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In this tutorial, you will learn how to build 1D elements.

 

Model Files

This exercise uses the 1d_elements.hm file, which can be found in the hm.zip file. Copy the file(s) from this directory to your working directory.

tut_img00313.zoom70

 

Exercise: Creating 1-D Elements

Step 1: Retrieve the model file.

1.Start HyperMesh Desktop.
2.From the menu bar, click File > Open > Model.
3.In the Open Model dialog, open the 1d_elements.hm model file.

Step 2: Create 1-D bar elements.

1.Open the Bars panel by clicking Mesh > Create > 1D Elements > Bars from the menu bar.
2.Go to the bar2 subpanel.
3.In the ax, ay, and az fields, enter 0. These are the values for the bar offset.
4.Click property = and select property1. HyperMesh assigns a property to the element.
5.In the pins a and pins b fields, enter 0. These are the values for the degrees of freedom.
6.Click the orientation switch and select components.
7.In the x comp, y comp, and z comp fields, enter 1. These values define the local y-axis.
8.Activate the node A selector, and select the lower node indicated in the following image.

hm-3000-nodes

9.With the node B selector now active, select the upper node indicated in the previous image. HyperMesh creates the two-noded bar element.

tut_img00314.zoom70

10.Exit the panel by clicking return.

Step 3: Create 1-D elements along a line.

1.Open the Line Mesh panel by clicking Mesh > Create > Line Mesh from the menu bar.
2.Verify that the entity selector is set to lines.
3.Select the line indicated in the following image.

hm-3000-lines

4.Verify that the toggle is set to segment is whole line.
5.From the element config list, select rigid.
6.Click mesh. The Density panel opens.
7.Activate the set segment selector.
8.In the elem density = field, enter 20.
9.Click set all. HyperMesh creates rigids on the selected line.
10.Go back to the main menu by clicking return twice.

tut_img00315.zoom70

Step 4: Create 1-D elements from the feature in the model.

1.In the Model browser, turn off the display of all of the geometry in the model.
2.Turn off the display of all of the elements in the model except for the elements in the feature_elements component.
3.Open the Features panel by clicking Mesh > Check > Components > Features from the menu bar.
4.Verify that the entity selector is set to comps.
5.Click comps >> feature_elements.
6.Click select.
7.In the feature angle = field, enter 30.
8.Select the ignore normals check box.
9.Verify that the create toggle is set to plot elements.
10.Click features. HyperMesh creates the plot elements as green edge lines.

tut_img00316.zoom70

11.Exit the panel by clicking return.

 

 

See Also:

HyperMesh Tutorials