Recent content by dbeckam

I have three frames. The first is the fixed global frame. the second rotates an angle PHIZ with respect to the first. And the third first rotates a PHIX angle with respect to the x axis of the second frame, and then rotates a PHIY angle with respect to the last y axis. That is, there are a total...

I tried to demonstrate it and got the same expression but with -z2*z5 + z3*z4 instead of z3*z4+z2*z5. So my question is how to prove that relationship.

I already resolved it. Thank you very much.

Yes, I understand. Thanks!

Summary:: Differential equation of motion, parabola Hi. I've tried resolve this problem but I have two doubts. The first is about the differential equation of motion because I can't simplify it to the form y" + a*y' + b*y = F(t). I'm not sure if what I got is right. My second doubt is that I...