Displacements and velocity from acceleration integration (accelerometer data)

6 views (last 30 days)
Hi, i have a matrix with acceleration values. I would like to find velocity and displacements with integration. I wrote a code with Newmark method but i'm not sure about results. The accelerometers registered data from 0 to 600 sec, i have 200 m displacements in the end! I have DT=0.005 from each istant of time.
i think because it is a cumulative integration.
Is there another method/code to find displacements and velocity? Thank you very much

Answers (2)

Benjamin Thompson
Benjamin Thompson on 10 Oct 2022
Integration naturally has some error when integrating a sampled signal because the integration algorithm has to make assumptions about the values of the signal between sample points. You can reduce errors by reducing step size, using a higher order method like Runge Kutta 4, or having a variable step size when the dynamics are changing more rapidly.
loiacono.giuseppe97 on 10 Oct 2022
I don't know how to use simulink. I have only matrix accelerations.. i have not the model

Sign in to comment.

Benjamin Thompson
Benjamin Thompson on 10 Oct 2022

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by