MATLAB simulation of fixed-mass rigid-body 6DOF

Calculate aircraft fixed-mass rigid-body six-degrees-of-freedom equations of motion using MATLAB ODE

Description

% SIXDOF Calculate aircraft fixed-mass rigid-body six-degrees-of-freedom
% equations of motion using MATLAB ODE45 solver.
%
% =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
% Inputs:
% =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
% Forces = 3x1 vector of forces in body coordinates
% Moments = 3x1 vectory of moments in body coordinates
% Mass = fixed mass of the aircraft
% Inertia = 3x3 Inertia Tensor matrix
% tarray = time series vector
%
% OPTIONAL INPUTS:
% Ipos_i = 3x1 vector of initial position
% Ivel_b = 3x1 vector of initial velocity (body)
% Irates_b = 3x1 vector of initial body rates
% Ieuler = 3x1 vector of initial euler angles
%
% =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
% Outputs:
% =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
% t = simulation time
% y(1:3) = body rates
% y(4:6) = velocity in body coordinates
% y(7:9) = position in body coordinates
%

• MATLAB release: MATLAB 6.5 (R13)

[Marine]

 

[Edmund Brekke]

The Euler angles should have been included in the output.

[Giannis Dalezios]

Hello everyone!
That's a very good program!
Can anybody help me to get as an output the euler angles value...?
What should I supplement?
I tried something but unfortunately i didn't get the presumed result.

Regards

[spika spika]

 

[F Z]

Great file, great help for people (like me) who are looking for software to simulate unconstrained motion of a rigid body. Quick comment: the code has a small bug...

In line 86:
Ipos_i = dcm*Ipos_i; % 3-by-3 by 1-by-3

Can be simply changed to:
Ipos_i = dcm*Ipos_i'; % 3-by-3 by 1-by-3
Ipos_i = Ipos_i';

Or something fancier. In any case, this is a great piece of code, and it is rather self-explanatory so disregard other reviews asking to make comments in the code.

In my humble opinion, if the derivation is unclear, one should write out (by hand) the equations to get a clearer picture. There are also short tutorials on the subject available (e.g., search for SIGGRAPH '97 unconstrained motion).

[Sum Yew Kong]

Very Good matlab function, especially for undergraduates to understand 6dof concept and to use this for case study simulation.

[manoj choudhary]

 

[Asen Marinov]

 

[ian lang]

very good.

[ery irianto]

hebat dong.
aku minta simulasi dinamik yang lain ya!

[Arthur Sugiharto]

This is a very best simulation i ever found... hehehe...

[bensahaila hocine]

salut
je suis hocine ,je cherche des documents sur la simmulatuin avec maleb et qui concerne les signaux aléatoires (domaine des telecommunication).
je vous remirci.

[xenia hernandez]

 

[raghu reddy]

 

[Randall Hudson]

The code looks good. I would increase the rating to five if the code included more details in the description.

[Randall Hudson]

This is my first download. I hope the description is an accurate description of the application. I am assuming the download includes the code. Not knowing exactly what I am getting is why I rated this 3. I will know more when I download the file.

[li li]