Hi,

I use Seismosignal to integrate acceleration time history to displacement which I then feed to my finite element model.

The FE models use a Newmark algorithm to solve the dynamic system so I need a baseline correction before I use it in the FE to avoid spurious acceleration from the Newmark algorithm.

My timesteps are defined at each 0.002 second. However, in one of my model, I fails to converge.

I would need to recude the time steps in the FE model. Problem is, when I do this, the newly assigned displacement (which is estimated without baseline correction) start to create spurious acceleration.

Is there a way that Seismosignal can provides me with more points when I make the baseline correction?

Say I have 4000 entry at 0.002 second which make a 8 second records. I would need, for example, 8000 entry at 0.001sec from the baseline correction?

The only option I see right now is to somewhat myself create the new value of acceleration from linear interpolation between existing value, then import in seismosignal then do a baseline correction. This process is time consuming... Any other way around?

Thanks for the help!