Hi,
Head scratching question here.
If you bolt two plates, one over the other, with two rows of fasteners like this : (note that the two plus sign over one another means the lengths of the bolt linking one plate over the other...hope it's clear)
+++++++++++++++++
+ +...
Hi there,
Little question here. Usually, to calculate the allowable load for a lug under transverse load, you have to calculate and average area of the section of the lug.
The formule is : Aavg = 6/(3/A1+1/A2+1/A3+1/A4).
Here's my question. In all the books and references, they show without...
Hi,
I read in this post thread560-140535 that it was possible to export a mesh from CAtia V5 to a bdf file that can be read by Nastran and Patran.
Anyone knows exactly how to do this? I'm looking for some export data but can't find any.
Thanks!
Hi,
I'm reading a single lug stress analysis. The theory being used is not familiar to me. I was expecting an analysis based on what we can find in books like Bruhn and Niu. When using this method, the margins of safety were very negative. So what they used is an analysis considering the lug...
Hi,
Here's a question that's been bothering for some times now.
Cozzone showed a method to calculate an ultimate or yield bending moment considering the beam is in pure bending.
The catch is that most of the beams also have axial loads. For example, a tube I'm trying to analyse has a bending...
Here's a question that's been bothering me for some time.
I have a rectangular section in the XY plane. For this section, I have an out of plane tension force, I have one shear force along Y axis, one shear force along Y axis, plus a bending moment around X axis and a bending moment around Y...
Hi,
I'm looking at the loads on a MLG obtained with a simulation software. The aircraft I'm studying has has a weight increase. So for the same landing cases, we have an increase in drag load ans in vertical reaction. So I was wondering if the vertical axle travel should increase or decrease...
I have a problem on what seems a pretty easy problem.
I made in Patran a sylinder. Since i do not have the license to use primitive, I had to make a rectangular surface and revolve it around the z-axis.
Then, I only want to mesh this cylinder, but Patran tells me that it is not meshable. I...
Hi,
I have this little question. Does it make any difference on the bolt prelaod or clamping force wheter the bolt thread in the second member or it is clamp with a nut outside de member?
Thanks!
Hi all,
I have a little problem. I'M using MSC Patran and I realized that when I'm meshing, the coordinates system of my different sections of meshing are not oriented the same way. Is there any way to just modify the orientation of the element?
Or, when I'm accessing the results. I can make a...
Hi,
I'm working with Patran 2004 and I'm tring to modelise an interference fit with a shearpin (simple full cylinder), a bushing and another part(the shear pin has different interference fit at the same time with both parts. I calculated the equivalent pressure on the shear pin made by the...
Hi all, I have here a little problem.
Is there any way to calculate the equivalent pressure on a pin caused by an interference fit with a cylinder?
Thanks.
