Creation of 1D elements like rod bar beam spring rigid with links in hypermesh

Objective:

1) To create ROD element with only translation dof and with RBE2 links of BOX as cross section.

2) To create BEAM element with all dof and with RBE3 links of I-Section as cross section.

3) To create BAR element with only x and y dof with RBE3 links of CROSS as cross section.

4) To create mass elements with RBE2 links.

5) To create spring elements at the ends of the component.

Procedure:

1) At first the given model is imported in the hypermesh and click shaded geometry option to view as surface.

2) Then the model is subjected to midsurfacing by selecting all the surfaces.

3) Then the extracted midsurface is autocleaned up.

4) Then autocleaned model is subjected to automesh.

5) With the meshed model, the RBE2 link is created in the first hole of the component on either side.

6) Then these links are selected as nodes and ROD element is created.

7) Again in the second and third hole of the component on either side RBE3 links are created.

8) Then these links in the second holes are selected as nodes and BEAM element is created.

9) Same as above, the links in the third holes are sected as nodes and BAR element is created.

10) At the either ends of the component the holes present are made with RBE2 links.

11) The above created links are selected and spring elements are created.

12) Again the same links are selected as the node but only upper holes on either side are only selected and mass is given.

13) The hyperbeam tab is selected to create different cross section given as per the dimensions.

14) Then the material is created as steel and given as the property to bracket component which is created using midsurface.

15) Again four properties are created for bracket and other three 1D elements created.

16) Then created properties are updated to the respective elements to give cross section and type of elements.

17) To view it in 2D, the 2D detailed view option is clicked.

18) Finally the session and model is saved with the suitable name.

Results and conclusion:

In this challenge, learned different commands used for creating 1D elements and also their types like rod, bar ,beam, rigid, spring etc. And learned to assign mass with magnitude to the nodes. And practiced to create different cross sections in hyperbeam tab such as solid circle, rectangle, I section, CROSS, BOX etc. Also learned to do midsurfacing. The hypermesh model is attached in the Zip file.