Learning Forum

[Consti9_9]

Hi,

with the other problem solved I am right now very close to my findings I want to simulate.

I always simulated the suspension with a force, but since I want to simulate a bump in the road a displacement is the better option for the simulation. So I now have a external displacement which is also working when I now look at the force at the top of the suspension. This force is almost the same as it was when I applied a external force to the suspension the gain the displacement (60mm).

The only problem right now, are the velocity and the acceleration. These two diagramms look a little bit weird because the fluctuation is really high?

Can someone help me with this problem?

Screenshot 2022-04-28 105558.png

[peteroznewman]

You say you want to simulate a bump in the road. That means to me a single bump. For example, you could have a sine-wave like displacement that goes from 0 to some positive value and back to zero over time. That could be an input, or you could take the derivative of that function and apply a velocity input, but you use only one of these inputs, not both.
The attached images show an oscillation, not a single bump. What is it that you want for an input?

[Consti9_9]

I already found my mistake but thanks for the answer.