Hello
I try to analysis universal joint (Cardan's joint) in MDO
the mechanism is composed with 2 universal joint, i have a slide between U joint.
on enter shaft, i use a speed servomotor
on exit shat, i use a torque servomoteur
It'OK, a speed and torque values are consistent
But, for design the bearing betwenn cross and fork, i need to calculate the forces on cross
of course, this force is torque/ fork radius (tangential force)
I would like to find this result with the Creo's measures, but i can't do it!
in pivot link (red circle) link betwen fork and cross
Creo fin a right torque value, if i ask a radial torque of this link.
logically, if i ask a radial force of this link ( axial is not possible with my link) he has to give me 3600N approximately.
But it's wrong! Creo return 0.05N
someone has an idea??
For this step, i don't use external load
and he give me
I don't find my error !!
now, i create a simplified model.
I use 1 universal joint
red arrow = servomotor constant speed
green arrow = servomotor constant torque
when i run simulation i find speed and torque oscillate. of course it's OK because this joint are not
homokinetics in single use.
now my problem, i want to calculate tangentiel load on yellow cross (for design ball bearing for yellow cross)
the only way i find is to create a personnal measure.
first : Creo calculate a radial torque
second, my measure divides the radial torque with radius of application point
i don't understand how to use Creo for calculate this with reaction restriction....
