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[Bushetty Kumar]

[Ashish Khemka]

Hi,

Can you please share more details of your query?

Regards,

Ashish Khemka

[Bushetty Kumar]

Thank you for the reply Ashish sir,

 

This is the sketch of my model to explain the boundary conditions.

The dotted lines are rigids, and the thick blue lines represent the frame that is to be analyzed.

The rigids are created using remote points. 

The remote points at the wheel axles are free to move in the displayed directions.

The front wheel axle remote point can rotate along its axis and the rear wheel remote point can rotate and move along the plane.

 

My question is How to perform random vibration analysis since i dont have any Fixed type boundary conditions.(i read that we need fixed support for random vibration analysis)

i have the PSD data and accleration vs time data.

 

Should i perform Transient structural analysis or Random vibration analysis For calculating FATIGUE life, Which one is more suggestable.

The Interest is in with calculating Fatigue.

[Ashish Khemka]

Hi,

If you have inputs for each analysis type then you can perform any of the analysis. However Random Vibration analysis is simple and would be less time consuming.

 

How to Perform a Random Vibration Fatigue Analysis | Ansys Courses

Regards,

Ashish Khemka

[Bushetty Kumar]

But i have no fixed supports in the model which is required by the random vibration analysis.

How to proceed?