Just for information - I solved the problem. I applied the loads as "Nodal", instead of as "On Surface", and it worked. It should be the same but, for some reason, it wasn't...
Hi everybody,
I'm running a Steady State Thermal Analysis (sol 153) of an assembly using FEMAP and Nastran. My load set comprises a number of heat fluxes, which are supposed to be dissipated by radiation. At the steady state, I expect the summation of heat fluxes (power) to be exactly...
Linear contact in a Normal Modes Analysis requires a pre-stiffened analysis as a subcas: the solver needs to add the differential stiffness coming from the contact conditions, in order to account for the contact constraints.
I copy here the paragraph "Special Note about Pre-Stiffened Modal...
Thanks guys... actually I feel a little bit discouraged but I'll keep trying! What about replacing the soldered pins with some sort of "equvalent beams"? Would it work in your opinion?
Hi everybody,
I need to simulate - with a satisfactory accuracy - the attachment between a PCB (Printed Circuit Board) and some electronic modules through a pin-in-hole solder connection (see picture attached).
I found plenty of articles about the so-called Global-local modelling technique, in...
I have fixed the second bug, but I still encounter the first one, and not only for rods. More in general, I get disagreement between the function "MAX VALUE OF CONSTRAINT" (provided by the design optimization analysis) and the actual stress acting on the structure (obtained from a preliminar...
Hi everyone!
I'm facing two problems with the Design Optimization tool of Femap 10.2 with NX Nastran, namely:
- when optimizing rods subject to compressive loading (therefore producing negative axial stresses), the solver fails if I set a negative value for the design constraint (for example...
Dear Blas,
thank you very much for your detailed and clear explanation. Besides, I've seen many of your tutorials and they're extremely helpful and well done.
I'll follow your tips and check your website in the next weeks.
Regards,
Francesco
Hi everybody, this is my first thread.
I'm a beginner with Femap and Nastran, therefore there could be some basics I ignore or I'm not familiar with: I would be very grateful if you gave me some general tips, besides the specific issue in subject.
I'm using Femap v.10.2 with NX Nastran to...
