Hello all,
I'm running Workbench 12.1 and recently it started having issues grabbing the Mech HPC license. Once workbench is started it will be able to grab a license for a few solves, and then it will fail to grab the license until I restart Workbench. The only way to solve the model at that...
Hello all,
I've had Workbench 12.1 thrust upon me and am trying to figure out how to apply a moment to a 2D axisymmetric model. There's "Moment" listed under loads but it doesn't seem to work for me.
I've modeled a splined shaft as a 2D axisymmetric model (Y being the axis of revolution, of...
Hello everyone,
I'm trying to design a crown on an external spline in an attmept to distribute the load over the length on the spline. Initial FEA shows the bulk of the load is taken up at the start of the spline so I'm trying to redistribute the load for lower stresses and more life.
Is a...
All, I'm trying to define an internal spline for a mating shaft to an already defined external spline. When I go the Machinery's Handbook 26, the major dia of the internal and external spline (Dri and Do respectively) are defined exactly the same way as N+1/P. Since they can't be exactly the...
Has anyone succesfully added their own material files to the .XML library Workbench uses? Could I get a dummy copy (you can remove all the data, just leave placeholders please)? I can't get the format correct, the original files only have temperature dependent fatigue properties and I want to...
Hello all, I'm looking for info on curvic couplings, their shape, standard sizes, how they're cut, load calcs, etc. I've contacted some machining suppliers, would like to get a head start. Any and all info would be appreciated.
I've included this also in the Ordinance Forum but since there were only three posts in it, this forum is probably a better experience/knowledge base.
I'm looking for schematics of the RPG-7 (or other RPG munition) rocket. Some online sites provide a crude artists rendering, but nothing...
I'm looking for a schematic of the RPG-7 munition, in particular the circuit path through the ogive to the detonator. I've looked online and found crude artists rendering, but nothing giving dimensions and what not. Additionally, I'm looking for whether the forward (towards the target) side of...
I'm looking for info on the wear characteristics of cast IN 100 on cast IN 100 at elevated temperatures, from 500°F to 1900°F. I'm hoping I won't have to apply a wear coating for a test that lasts under 500 hrs over the specified temperature ranges with low stresses, under 10,000 psi.
I'm running models using the convergence tool and after the model converges I can display the mesh the computer generetaed by having the elements outlined in the results. How do I keep that mesh in my model? When I go to view the mesh , the original unconvergd mesh is shown.
Separately, I...
I've used compound fillets for packaging and weight reductions in members under tensile load, but does anyone know of any guidelines or sources for using compound fillets under combined tensile and bending moments loads? Essentially I have a T section where the two "arms" of the T...
For similar impingement jets acting over similar distances, is there a higher h associated impingement on a flat plate or a plate where each jet hits a raised cone? Is the increase in area due to the cone outweighed by the now oblique angle of the jet relative to the surface? I realize there...
I'm looking for an equation to calculate the film cooling effectiveness for a flat plate in turbulent flow. The plate has a series of film holes from its leading edge to midspan, the last midspan has no holes (one inch long, .050 inch height, depth irrevelant). The array of film holes are...
I'm trying to get an equation that describes the shape of a beam for constant stress. The beam (cross section doesn't matter) is really a boom centrifugally loaded. I want to determine how much the cross sectional area varies when the mass on the end of the boom is varied, the RPM varies, and...
I'm trying to get an equation which will give the torsional stiffness of beams with the following cross sections: a trapezoid and a parellelogram (the polar moments of these shapes is enough). These will actually be sections in a composite beam with the end sections being triangles to close out...
I'm trying to get an equation which will give the torsional stiffness of beams with the following cross sections: a trapezoid and a parellelogram (the polar moments of these shapes is enough). These will actually be sections in a composite beam with the end sections being triangles to close out...
I'm looking for some data or correlations concerning impingement cooling. I'm looking to at how my h will vary with different shaped impingement holes, slots, etc and the shape of the impinged surface (ribs, rough surface, etc). Thanks.
I'm looking to get some parts machined and ideally I would like some small fillets, under 1/32 but I'm worried about cost. The shops I deal with in Aerospace all kick up the cost for really small radii, is there an industry that uses small radii as course of business like watch makers or lock...
Looking at the responses to some of these threads this will either be a ridiculously simple answer or way too esoteric for a plain ol' Mech. E. like myself, but here goes-
How do antennas and transmitters work? I'm looking for an answer on the subatomic level with plenty of Maxwell's Eqn's...
I'm trying to order some over the counter ball bearing in very small quantities. I've checked sources like Grainger and all I find are complete bearing assemblies (balls, race, etc) and the size of the bearing is never given. Does anyone know where I can get some ball bearings, just the balls?
