Dear All,
The purpose of this simulation is to analyze an attenuation by a flexible element(rubber mount) after driving loading. I'd like to perform a steady state linear dynamic analysis. I'm trying to apply an acceleration load, not force.
The model is consists of the steel structure and the rubber mount without tire. The input point is a bolt position of the bracket connected with tire. I obtained the acceleration data at the points in the driving conditions.
I want to know if I can use an acceleration boundary condition in the steady state linear dynamic analysis step as below.
*STEP
*STEADY STATE DYNAMICS, DIRECT, FREQUENCY SCALE = LINEAR, INTERVAL = RANGE
1.0, 500.0,500,1.0
*BOUNDARY, REAL, TYPE=ACCELERATION, AMPLITUDE=AMP1
PT,1,1,1.0
*BOUNDARY, REAL, TYPE=ACCELERATION, AMPLITUDE=AMP2
PT,2,2,1.0
*BOUNDARY, REAL, TYPE=ACCELERATION, AMPLITUDE=AMP3
PT,3,3,1.0
*END STEP
When I tried the simulation, this result of attenuation data seems to be plausible.
(The result in base motion analysis is a tendency to be not correct.)
Please let me know the right process. Thanks in advance.
When applying boundary conditions, there is an option for velocity and acceleration.
You can try it and see if it works for you.
alternatively, use the predefined loads option
Dear Dr. Jj Kim ,
I suggest you to have a look at the following, interesting video:
- Acceleration/G-Loads in Abaqus with Postprocessing - YouTube
In this video, the author demonstrates how to perform an acceleration load analysis in Abaqus with postprocessing.
Available at: https://www.youtube.com/watch?v=aeuxDsMa5dU
My best regards, Amir Beketov.
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