Rigidized vs. Flat Beams 1

[SonofBruce]

Greetings all,

I'm looking for some info regarding weather the stiffness and natural frequency of a beam are improved by rigidizing and if so, why. I've looked all over the net and I'm not having much luck. Thanks for your help.

 

[GregLocock]

What is rigidizing?



Cheers

Greg Locock

Please see FAQ731-376 for tips on how to make the best use of Eng-Tips.

 

[MikeyP]

What is "improving the stiffness and natural frequency of a beam" and what does the weather have to do with it?

M

--
Dr Michael F Platten

 

[electricpete]

Yes, good clarifiactions requested above.

Stiffening a beam of course generally increases the natural frequencies, unless you are adding a lot of mass in the process.

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[1011gomez]

Sirs:
I was wondering what would happen to a rectangular solid aluminum beam's natural frequency, if it is initially fixed at both ends, then its fixed length is increased (ends still fixed)? The loadings are the beam itself and a wind load at the thin side and flowing over the longer side, like an air foil placed on sides of a wind tunnel.
DaveG