Hi all,
I am trying to use CREO MDO to get the torque needed to put an assembly in rotation considering acceleration, masses, frictions and so on.
I think that the model is well implemented but the results given by CREO are not consistent with my hand calculation so after some tests on the main assembly I decided to make a simple test using a small assembly in which I have a simple beam with a pin joint on one of the edge (please refer to attached picture MDO_TEST_01).
To get a result I've applied a force on a point laying on the beam (120000 mN) (refer to picture MDO_TEST_02) and i asked the software to give me back the torque calculated (radial moment) on the pin joint (refer to picture MDO_TEST_03).
I was expecting to get a result similiar to the one below:
F=120000 mN
Distance from the center= 80 mm
Torque= 120000*80= 9600000 mNmm=9.6 Nm
Instead I am getting as result something like 33665 Nmm=33.665 Nm (please refer to picture MDO_TEST_04).
What's wrong in the model and/or in my calculations?
Thank you all.
Andrea.