Accelerometer: help needed

Altair Forum User

Hi everyone

 

I'm performing crash analysis with radioss using units [ms], [mm], [kg], [kN]. I' ve added an accelerometer on the vehicle and I was trying to understand in what kind of units is the output of the acceletometer itself, because I get different values from the acceleration I get as double derivative of the displacement of the same point.

 

Thanks for the help

Altair Forum User

i think i solved the problem. for everyone who needs it, just add the header card in the engine file. then the output will be directly in g