Assembly jargon

[gsejrmech]

I am a frequent user of Inventor, maybe thats why I find CATIA assembly a little more tough to handle. I have curved surface(section of a wing) and it houses a machined part which also follows the mold line. What is the best possible constraint situation i should follow. I did try using coincident as it don't even let me use the contact constraint. HELP!!!!!!!

 

[solid7]

Well, I'm not sure who you work for, or what method you use to define your parts, but my aircraft experience is that usually parts like you are speaking of, are defined off of some sort of datum system, generally the local reference for whatever system you are working in. (Nacelle axis, fuselage (section X) axis, empenage axis, etc.)

So, define the datums first, and then relate them back to STA, WL, and BL values. (or whatever reference they use where you work) That means you are going to have to constrain datum (target) points to reference planes, most likely.

There's no constraint available (that I know of) to seek out a matched countour. Even if there was, it doesn't make sense to stick it into a 3D model without logically building a reference system...




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[gsejrmech]

thanks for the good insight. I work for GSE Dynamics, located in Hauppauge, NY. I used to use inventor heavily with designing sheet metal, which was pretty simple. With the new job, its all about contours, and you are right I have to create the reference system as I can see they will sure help with creating constraints.
well lemme give you the flow of work.
1. Created the sweep with loft data (Using CATIA)
2. Mirrored (Patse special)