calculating velocity and acceleration from force data

4 次查看（过去 30 天）
Adrienne
Adrienne 2014-5-16
评论： David Sanchez 2014-5-16
bw means bodyweight
g=-9.81
I have a force and I have tried to take the bw away from the force and then find velocity and acceleration is this right?
% Calculation of Velocity and Acceleration
%force to acceleration by f=ma
%acceleration=force/mass
%acceleration to velocity = cumtrapz
time = (0:fps:length(fz)-fps);
bw = nanmean(abs(fz(1:to(i,1):40)));
mass = bw/g;
IFz= fz - bw;
I = trapz(time(to(i,1):td(i,1)), IFz(to(i,1):td(i,1)));
a = I/mass;
%velocity
v = I/(bw);

请先登录，再回答此问题。

采纳的回答

David Sanchez
David Sanchez 2014-5-16
Look at the dimensions of your variables:
a = I/mass; -> Newtons / kg = m/s^2 -> OK
%velocity
v = I/(bw); -> Newtons / Newtons -> NO OK
your definition of velocity does not seem to be right
  3 个评论
显示 1更早的评论

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Numerical Integration and Differential Equations 的更多信息

标签

Community Treasure Hunt

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

Start Hunting!

Translated by