Assignment 2-RADIOSS Engine File Editing & 3D Meshing Challenge

1.Given Data: E=210000, Rho initial=0.0078

• All the Above units are in g mm ms, Following the same as per the formula C=√E/Rho, we get C=1.9272x10^-4 mm/ms.

2.Given Data: Length=1000mm

• We know that ΔT=l/C ie...,Elemental time step=1000/1.9272x10^-4=5188875.052 ms.

3.Time for sound to travel length of rail= 5188875.052 ms.

4.Edit the engine file as shown.

5.Frequency of the animation steps = 5188875.052/20 =259443.75

6.Change /print -10.

7: Performing a Tetra Mesh Operation.

• Import the Model.

• Perform Geometric Cleanup for the better results.
• View Utility>Geom/Mesh>Quick Tetra Mesh>Select Component, Mesh Size as 5, >Mesh.
• If the results are not reachable to the expectations then,
• Go to Automesh select the surface Mesh it with Trias.

• 3D>Tetra Mesh>Select Components>Split into Trias>Create per Vol Comp>In Vol Tetra>Element Size as %>Check in Proximity and Use Curvature> In tetraMesh Parameters the Tet Collapse as 0.15>Mesh.

• Similarly the Housing is performed after the cover as shown.

7: Performing a Hexa Mesh Operation.

• Import the Model.

• Make a geometric cleanup for a neat mesh flow.
• Start Meshing From the base.

• Go to 3D>Solidmap>Line drag>Select the elements to drag>Line of drag>Mesh.

• Mesh the destination surface as shown below.

• Go to 3D>Linear Solid, Select the Drag elements and Destination Elements to match>Mesh.

• Hence the final model is shown below.