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

WEEK 2 CHALLENGE

1. Check the material properties of the rail component and calculate the speed of sound in steel raiL

 

c = √ ( 21000/0.0078)

c= 5188.74 ms.

2. The length of the rail is about 1000 mm.calculate the time takes for a shock wave to travel from one end of the rail to the other.

Time taken ,△T => L/c => 1000/5188.74  => 0.1927ms.

3.Time for sound to travel length of rail= 0.1927ms

4.Edit the engine file so that the stress wave can be monitored, moving from one end of the rail to the other during impact -this will require a termination time equal to the time it takes for the sound to travel the length of the rail(set on/RUN card)

change to 0.1927ms insteed of 60ms as shown below,

5.Set the frequency of animation output to a time that will give 20 animation steps(/ANIM/DT)

T_frequency  = Termination time / Total no. of steps

T_frequency = 0.1927/20

T_frequency = 0.0096.

Now, change this T_frequency  into engine file as shown below.

6.Change /print -10.

7.3d meshing tetra mesh and hex mesh.

1. HOUSING 

b.ARM BRACKET

c. 1D ELEMENTS