d the
coordinates of the mass (x,y,z) as well as its orientation (phi, theta,
psi).
Could you steer me in the right direction to set things up? I'm sorry for
asking as much, but after several atempts I'm having a hard time to wrap my
mind around how to model the system.
Thanks in advanc
ly appreciate it.
Thanks again for all the help,
Nuno
quinta-feira, 18 de Agosto de 2016 às 15:48:35 UTC+1, James Milam escreveu:
>
> To kind of expand on what Jason's saying a 3D pendulum can be completely
> defined using just (x, y, z) and you can deduce the angles from these
&g
rst time I hear about that and for example,
when one wants to model a rigid body in space (both its position and
orientation) those are the generalized coordinates used (Think for example
of a quadcopter model).
Thanks,
Nuno
segunda-feira, 15 de Agosto de 2016 às 19:13:25 UTC+1, Jason Moore esc
ot sure if the way I'm doing things is correct, since the
resulting equations of motion seem to be really large for such a simple
problem. Then again, I'm not experienced with this kind of problems.
Thanks in advance for all the help,
Nuno
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You received this message because you are
.to_matrix(inertial_frame)[0],
y_m -
cable_length*distance.normalize().to_matrix(inertial_frame)[1],
z_m -
cable_length*distance.normalize().to_matrix(inertial_frame)[2] ]
Thanks again,
Nuno
quarta-feira, 10 de Agosto de 2016 às
Could someone help me understand any mistake I'm making and point me in the
right direction?
Thanks in advance,
Nuno
sexta-feira, 5 de Agosto de 2016 às 18:01:39 UTC+1, Nuno escreveu:
>
> I'm trying to get familiar with the sympy and its uses in obtaining the
> equations of mo
I'm trying to get familiar with the sympy and its uses in obtaining the
equations of motion of multi-body systems.
In order to test things out I decided to use an example similar to a 3D
pendulum where I have two masses. However the mass that is not fixed has a
force and torque applied to it. S
Ok, thanks so much for answering.
quinta-feira, 4 de Agosto de 2016 às 00:57:12 UTC+1, Jason Moore escreveu:
>
> Nuno,
>
> Simplification of very large expressions is typically not a good idea due
> to the time needed for computation. Unless you have a specific need to
> simp
I have created a jupyter notebook where I'm defining a multibody system in
order to obtain its kinematics and dynamics.
I use the KanesMethod (from sympy) in order to obtain the equations of
motion of the system.
However when I try to use trigsimp() on the mass matrix obtained, it seems
to
Hello Developers !
I am Nuno Lopes and im second year of Computer Science in Universidade de
Evora, Portugal.
As student of Computer Science I have a lots of Math Subjects and sympy
could be very helpfull in some of them.
I searched for graphics view on sympy and i only found this:
>>
1.
1. Hello Developers !
2.
3. I am Nuno Lopes and I'm in second year of Computer Science
bachelor in Universidade de Evora, Portugal.
4.
5. As a student of Computer Science I have a lot of Math Subjects and
sympy could be a very hel
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