Reply To: Ansys Mechanical : Modal

[Erik Kostson]

Hi

Not sure what is the error between exp., and simulation (an absolute value of 10 Hz does not say much).

If you think that the material properties are exactly correct (often we do not them exactly and need to study their effect when changing them), then boundary conditions could be something to look at.

 

 

 

Still one can look at using a design of experiemnts (so look at what par., influence the agreement between the 2), and optimization to tune exp., to simulations.

See here for some ideas on the above (look at: Model Calibration of a railway vehicle):

https://library.dynardo.de/en/library/industries/railway-systems.html

Perhaps other members here can chime in and provide some ideas, but I hope the above

helps