railway modeling

[hbkhero]

Hello everyone,
how can i model train load and which step i should use and which amplitude because i want it to be a repeated load
please help

 

[rrg1016]

It is impossible to answer that, because your question is very inespecific.

Have you ever used abaqus?
What are you trying to modeling? The wheel-rail? The ground? The whole train?
And... what are you looking for? Fatigue? Vibrations? Static Stresses?

 

[hbkhero]

thanks for replying replying
i never used the program before .
i wanna model ballast deflection after a series of repeated sinsudial load
i used a pressure on a surface of the ballast about 500kpa but i dont know which proper setting to go with

 

[tkks2040]

Hey hbkhero. Try pressure load with a periodic amplitude.

 

[hbkhero]

thanks for replying tkks2040
i am using tabular amplitude
but i do not know how to use periodic amplitude.
i wanna simulate 10000 cycle and each cycle duration 0.02376 second

 

[tkks2040]

Please find more information regarding periodic amplitudes in the link to the section in Abaqus manual below. Kindly go through the various sections in the Abaqus manual.

http://www.egr.msu.edu/software/aba...usb/default.htm?startat=pt07ch27s01aus93.html