Did you double-click on the file when you start up CATIA ? I remember that if I just double-click on the .CATpart file I couldn't get to find the file, however it worked fine by opening CATIA, then open the file accordingly. Just thought that you might want to try.
gpg1,
I'm not sure what you need out of the FEM model. If stress is what you're investigating then surely you will need to find a way to prove that your simple model is good enough to predict the geometric nonlinear effect. Otherwise it won't be neccesarry to correlate stress if deflection is...
I totally agree that FEM model must be correlated to the test results and structural test must be perform at certain stage of the design as to validate the model - Especially when we already know that the margin of safety is very low and classical theory has proven that increasing the target...
Batman2,
I'm actually doing some FEA wing analysis and I did apply some stat. on the strain gauge data that we have collected.
What you probably need for your studies is Hypothesis Two-sample t-test. If you're just after some quick reference, this one is very helpful...
Hi Crackman,
Yes, you're right. The aircraft is already in service and the client basically want to increase the MZFW without adding any extra strutures to the wing - which is quite a challenge/dream provided we already know that the margin we have on the current MZFW is hitting 0.1 or less...
Air loads(lift, drag, pitching moment) are pressure loads acting continuously across the span of the wing. Due to the spanwise and chordwise distributions of the pressure loads, these loads couldn't be easily stimulated using simple jack or point force loader. Making a test rig for this...
Hi Greg,
Thanks for your reply.
In fact, we have done a simple structural test on the wing by applying a point load(two tests, vertical test for simulating lift load and horizontal test for simulating drag and torsion loads) on the tip float (270" from the fuselage centerline). However, we...
I'm a aeronautical engineer working in Australia.
Lately I'm working on the FEA wing analysis for my company.
As most of you know, finite element method uses
different approach from classical engineering bending
method. In other words, results from FEA and classical
bending theory always...
