I feel like I'm fishing in a swimming pool.....
50 Watt CAFz'r
Joined: Oct 2003
Posts: 146
Ever thought about modal analysis using FEM analysis?
http://www.lam.jussieu.fr/src/Membre...inAES114th.pdf
http://www.lam.jussieu.fr/src/Membre...inAES114th.pdf
Originally posted by Haunz:
hmm.. from what I know structure utilizing equilaterial triangles should be stronger then one using a parabolic shape...
hmm.. from what I know structure utilizing equilaterial triangles should be stronger then one using a parabolic shape...
Guest
Posts: n/a
A triangle is a good shape for distributing force, but if you push inwards along one of the flat sides, it crumbles.
Hobbes is right about the connection between the surround and the cone, but that's another matter.
I'd be more worried about the tinsel lead connections, but I am not designing speakers... ...only developing.
Hobbes is right about the connection between the surround and the cone, but that's another matter.
I'd be more worried about the tinsel lead connections, but I am not designing speakers... ...only developing.
Originally posted by Dave_MacKinnon:
A triangle is a good shape for distributing force, but if you push inwards along one of the flat sides, it crumbles.
A triangle is a good shape for distributing force, but if you push inwards along one of the flat sides, it crumbles.
Im pretty certain that triangles and honeycombs are the strongest structural shapes... actually, (and Iam not big on geometery here) but I think a parobolic shape gains its strength because of its inherent triangular elements...
allthough I can't explain why parobolic shapes are often used instead of triangles... most implement triangular shapes within the larger parobola... Also I don't see NASA or the airforce building isogrids with parabolas [img]tongue.gif[/img]
Perhaps you are meaning a pyramidial shape and not necessarily a triangle.
A speaker cone has to endure air forces pushing and pulling on the backside of the cone as the cone moves in and out, especially in a sealed box. A flat-sided cone would distort in shape more easily than a curved cone? Why because again the arc-shape of the curved cone is inherently stronger. You still feel a triangle is stronger than an arc eh?
A speaker cone has to endure air forces pushing and pulling on the backside of the cone as the cone moves in and out, especially in a sealed box. A flat-sided cone would distort in shape more easily than a curved cone? Why because again the arc-shape of the curved cone is inherently stronger. You still feel a triangle is stronger than an arc eh?
1000 Watt CAFz'r
Joined: Aug 2001
Posts: 1,770
my thoughs are that different cone materials produce diffent tonal qualities so that they can say there different
marketing stategy
and suxz i don't know about now but when they did the old school flat cone like in the old pioneer tsx boxes
if my old memory serves me right it as a flat diaphram on a conventional convex cone
oh ya they also were doing square speakers back then too
marketing stategy
and suxz i don't know about now but when they did the old school flat cone like in the old pioneer tsx boxes
if my old memory serves me right it as a flat diaphram on a conventional convex cone
oh ya they also were doing square speakers back then too
