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Yes. First, put your time history data into an ARRAY type variable, and then use the VPUT command to load this data into /POST26. You can then use the /POST26 command, DERIV to take the derivation on one variable with respect to another. The first derivative is the velocity, and the second is the acceleration.
See the attached file, "build.dat" for an example of this procedure. (Note: In order to use /POST26 you need to create a dummy FE model.) I have also attached jpeg files of the Displacement, Velocity, and Acceleration.
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