필터 지우기
필터 지우기

Displacements and velocity from acceleration integration (accelerometer data)

조회 수: 5 (최근 30일)
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

답변 (2개)

Benjamin Thompson
Benjamin Thompson 2022년 10월 10일
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.
  댓글 수: 5
Benjamin Thompson
Benjamin Thompson 2022년 10월 10일
Simulink supports a wide variety of integration algorithms. Go to Model Settings, Solver, and see the types available. The one for Runge Kutta 4 is called ode4.
loiacono.giuseppe97
loiacono.giuseppe97 2022년 10월 10일
I don't know how to use simulink. I have only matrix accelerations.. i have not the model

댓글을 달려면 로그인하십시오.


Benjamin Thompson
Benjamin Thompson 2022년 10월 10일

카테고리

Help CenterFile Exchange에서 Modeling에 대해 자세히 알아보기

Community Treasure Hunt

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

Start Hunting!

Translated by