To be correct, the sim should contain the throat of the CD. Hence the sim should have 0 throat angle, but be extended down to the actual location of the diaphragm. I assume here that there are insignificant slope changes in this extended region.
I figured out an easy way to transform these mesh files to solids in Fusion 360. Took a while and lot of frustration but ended up being surprisngly simple way. Import mesh, use mesh section sketch, edit that sketch and tell program to put spline in on top of the profile. Edit to thickness and revolve. To non axisymmetrical it takes bit more, combining bodies, etc. but can work with solids rather than mesh.
Question: If i got 1" comp and i'd extend the horn throat along its opening angle, let's say 20 degree, all the way to make it 2" opening and would then calculate horn to end of it by using this software, would it work? I'd imagine it would increase loading but what else would likely happen?
Question: If i got 1" comp and i'd extend the horn throat along its opening angle, let's say 20 degree, all the way to make it 2" opening and would then calculate horn to end of it by using this software, would it work? I'd imagine it would increase loading but what else would likely happen?
(Slightly less) coarse walls may actually improve guidance.
The mounting holes have to be filled though.
That'll be tricky, because there's two surfaces in the ABEC model generated by ATH4:
1) there's the mesh for the waveguide
2) there's the mesh for the aperture into the room
It's one of the reasons I don't do a whole lot with ABEC anymore; it takes so long to make the 3D model, I can often design and print one in real life faster than I can design one for ABEC.
In the past I was able to optimize meshes fairly easily by using Geomagic Design X, as well as their plugin for Solidworks.
Also for Rhino sophisticated (discrete) surface optimization plugins are available, such as Evolutetools and VaryLab.
However, one will soon run into the limitations of even the most advanced mobile workstations while working with large meshes.
A desktop workstation with sufficient RAM and processing power is mandatory.
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Bateman googles "Geomagic Design X"
"Artec Eva, Geomagic Design X and one year of Artec Studio Professional for $35,990. Artec Space Spider, Geomagic Design X and one year of Artec Studio Professional for $43,350. Artec Eva and Space Spider, Geomagic Design X and one year of Artec Studio Professional for $55,290."
:O
)
Wiki: An acoustic waveguide is a physical structure for guiding sound waves.
The noun guidance is also common in Quantum physics to describe motion of particles.
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isn't the inside surface tension of the wave guide or horn a matter of weather or not you want to generate drag (friction due to turbulence/resistance) on the outside edge of the wavefront as it leaves the mouth? for example a smooth surface will help to keep the exiting wavefront flat while a rough surface will result in adding some drag to the outside edges of the wavefront making for some curvature all be it a very small amount?
Possibly, even though I doubt aerodynamic principles apply to acoustic wavefront propagation inside a horn/waveguide.
I refer to this:
