Apologies for the confusing reply.
And yes, I now understand the problem better. I will add a third point and solve for my application.
Thanks to both of you
I have not disappeared from this thread, I was away for the weekend.
zekeman: The forces/moments at 0,0 are defined above. They have nothing to do with the forces at points 1 and 2, those forces simply have to add up to equate the forces already present at 0,0. This problem yields a 6dof...
I guess we are beating this to death at this point, but I believe the definition of a system of equations with a determinant of zero means that the equations are not independent.
I just attempted to solve the remaining system by hand and ended up with a constant = constant (all variables...
I'll try to explain a little further.
The system is a fairly large mechanical device used on most aircraft (I'm afraid I can't give much more information than that). It is mounted to the A/C using a number of rods/lugs. From FEM runs, I have the loads at all of these A/C interface points for a...
Ok, I agree that the forces should sum to -Fx to equal zero, my mistake, but that does not affect the ability to invert A.
I had already gone down the reduction path, getting:
A =
[-y1+y2 x1-x2 o
z1-z2 0 -x1+x2
0 -z1+z2 y1-y2];
x =
[-Fx2; -Fy2; -Fz2];
B =
[Mz-Fx*y1+Fy*x1;
My+Fx*z1-Fz*x1...
Thanks for the response.
I have tried swapping the equations around to no avail.
The system actually has a lot more loads on it, summing to the forces and moments described by [Fx Fy Fz] and [Mx My Mz]. There are no direct forces on that point.
I am trying to balance all of the other forces...
Hi,
I'm attempting to solve a 6x6 system of equations, but am returning an uninvertible matrix.
The system has an arbitrary center point and two load application points defined by [x1,y1,z1] and [x2,y2,z2].
The forces and moments at the center point are [Fx Fy Fz] and [Mx My Mz] respectively...
