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CG of a Skin in CATIA V4

CG of a Skin in CATIA V4

CG of a Skin in CATIA V4

(OP)
Hello,

I am trying to analyze a skin in V4 and none of the tools (ANALYSIS-inertia, SKIN-ANALYSIS, SOLID-ANALYSIS, etc.) seem to be able calculate Center of Gravity.
Can anyone help me with this?

Thank you,

Engin.

RE: CG of a Skin in CATIA V4

engin,

A skin has no thickness and thus no C of G. Create a solid by offsetting the skin by a small amount, and then analyse the resulting solid.

Terry

RE: CG of a Skin in CATIA V4

That's all true, but in V5, you CAN find the CG of a surface, by using the inertia tool.  This makes perfect sense, because giving the surface a thickness will only offset the point. (it remains constant in whatever plane you defined the surface in - so long as you don't change anything else)

You're probably correct about V4.  I don't remember - but I did want to express the need to use caution in your logic. (however true it may be in conventional terms)




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RE: CG of a Skin in CATIA V4

(OP)
Guys, thank you,  
There is one thing - a face does not have thickness as well, nevertheless you can find its CG using Analysis Inertia.
There should be a way for skins...

Thank you again,

Engin

RE: CG of a Skin in CATIA V4

Skins are nothing more than a placeholder for faces.  Really, it's just sort of a redundant entity, albeit logically necessary for V4.

That being said, have you tried using the analysis "combine" feature with the faces?  It's been a very long time since I've used V4 for any advanced tasks, but I clearly remember that it was possible with solids to analyze multiple objects, and combine the result, and the resultant would be a centroid, CG, or moment of inertia for all analyzed objects.

Forgive me for being vague.  I have V4, but my workstation is offline at the moment.  Perhaps someone else can chip, in and either shoot me down, or back me up?




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