Still no luck with this.
I have done some more troubleshooting and found that I am getting the following error in my harmonic response run:
...
SELECT COMPONENT REACT_AREA1
SELECT ALL ELEMENTS HAVING ANY NODE IN NODAL SET.
93 ELEMENTS (OF 18289...
Orel,
I am using the harmonic response module. And yes, I am unsure if the method used in the link will work for harmonic, but I am hoping it will, perhaps with slightly different code?
Andri
Hello all,
I am attempting to obtain reaction forces from a harmonic simulation in ANSYS WB 13.0. It appears the only way to do this is with some command objects that grab this info from ANSYS Classic.
I found the following blog that is similar to what I am trying to do...
ornerynorsk and dhengr,
I need the sheet to be pretty flat, so brake-forming a shallow bend in a X pattern is probably out of the question. The sheet is actually the side of a centrifugal fan housing/volute, so it's not square or even rectangular in shape.
The shop says that they currently...
I went ahead and emailed the shop to see what they can do. I am concerned that they won't be able to bead roll material that thick, as StrykerTECH mentioned.
Also of concern is that the material will likely not be very flat after bead rolling, especially a heavy gauge and a large bead.
I may...
Hi all,
We have some sheet metal fabrications made of 10 GA steel. Because there are some pretty large flat pieces, the structure lacks stiffness in several areas.
Someone here suggested bead rolling these large flat pieces to increase the stiffness. This may well work, but I have not had any...
Desertfox,
sorry for the confusion. I realize now that in my first post I noted that the lead screw was stationary - what I should have said is that it is rotating, but axially stationary. The nut, of course, is constrained from rotating, but moves along the screw axially to raise a load.
Ted...
Thanks to all who have responded.
First, I'd like to address Jboggs' comments. You are correct in your facts 1,2,3 and 5. However, number four should be:
4. A motor applies a torque to one end of the lead screw.
I am interested in knowing the resultant torque on the nut. That torque on the...
Alright, I think I have something figured out. I know that the torque required to raise the load has in a sense two components: The torque to overcome friction in the threads, and the torque to actually raise the load.
I know that the total torque to raise the load is:
(Equation 1)...
Mike,
yes, assuming the resultant torque being equal to the torque input to the screw would certainly be a worst case scenario. However, I'd still like to know what the resultant nut torque would be during normal operation. This is because the guide rollers run on long, end supported aluminum...
I am designing a lead screw assembly with a stationary, vertical screw and a moving nut in a nut carrier. I know how to calculate the torque required to raise and lower the load, but what I can't figure out is how to calculate the resultant torque on the nut (due to friction), ie the reaction...
For those of you familiar with the PTC standard fastener library:
How do you work with the inch fasteners such as bolts and nuts considering there is no thread data in the family tables?
Typically we like to define the thread pitch (UNF or UNC) for our bolts and nuts in the BOM table callout...
