Does anyone know of a standard procedures manual or best practices document for Finite Element Analysis of aircraft structures? I have seen examples for cabin monuments and dynamic seats but are the any for airframe structures?
DO-160 testing is very expensive. You should be able to convince the ACO to allow you to just do your EMC tests directly on the aircraft. There is an advisory circular that addresses these types of equipment. Take a look at the following web site for details...
Thanks for the great input Harry and Greg. We're just implemented it here as well for our consulting business. The pricing structure for Altair's package was much more attractive for our small business. I knew that the automotive industry was using it but found it odd not to see it in aviation...
I have been using CADRE Pro to evaluate static stress in plates, beams, bolted joints for about 3 years. It is really easy to learn, runs really fast with minimum hardware, and does not cost very much. It is well worth evaluating for using for simple to moderate level structural analysis.
Thanks for your input Greg. That's interesting... I understood that the Altair FEA solvers Radioss and Optistuct were widely used by many automotive companies.
Does anyone know if any Aviation Companies use Altair's solvers?
I wonder if this software making any in roads into the aviation market? It appears to be very strong in automotive area but most aviation companies I know are using NASTRAN.
AIrcraft skins are consided structural. The rule of thumb we use is to ensure that the area of material that is removed from the aircraft skin is replaced with doubler plate of the that has enough material and fasteners to support the load capacity lost by the hole. If you cut a 20" slot you...
Hi Spirit,
Thanks for the explanation. Interesting choice of element. In their analysis they used three rod elements at each attachment point to isolate the reaction loads. I supposed that using this type of element on an interior monument would make sense. That way you can be sure that the...
Hi dmacx,
I really appreciate your response. This information is very helpfull. It sounds like it is similar to a pinned beam. Is it capable of carrying any transverse forces and bending? I think that something that explains the general properties and fixities would be helpful.
Thanks,
sjbjcl
johnhors,
Thanks for your reply. I don't have a copy of Nastran. I am reviewing a FEA report that someone else prepared and I thought that someone here could help.
sjbjcl
Can anyone explain the definition of a ROD element in Nastran? I don't have access to this information and would like to understand the general properties and assumptions inherent to this type of element.
Thanks,
Sjbjcl
