Learning Forum

[Abbas Kadhir Ali Mohamed Abbas]

Hi,
I have a 2D axisymmetric model where I have a contact spring setup and wanted to understand the dynamics of a part under force. I also wanted to do a parametric study with different stiffness values and their effect on the dynamics of the part. But when I plotted the deformation of the part under various stiffnesses ranging from 200 N/mm to 500 N/mm, all the deformations were exactly the same.
I did a similar sensitive study with ranging preloads which worked but changing stiffnesses did not work. Does anyone know the reasoning and solution?
P.S. I tried setting up the Spring contacts in the respective coordinate system of contacts rather than Global. Did not work either.

keenly await your suggestions

Best Regards,
Kadhir

[Ashish Khemka]

Hi Kadhir,

Can you please share snapshots of your setup?

Regards,

Ashish Kumar

[Abbas Kadhir Ali Mohamed Abbas]

Hi Ashok, 
Please find the Snapshot of the setup here. I did the spring displacement vs. time plot for varying stiffness for the same preload. There is a negligible variation of the spring displacement through time in Transient FEA (Velovity=1 m/s). Please find the plot for your reference as well.