Wiffle Tree 1

[Guest0527211403]

Hi Folks,

I'm designing a test apparatus where I need to apply a pressure load to a porous membrane (actually, a mesh screen).

I'm in the early stages of design, so I'm kicking around a few ideas. One of my colleagues who used to work for an aerospace manufacturer has told me about a device called a "Wiffle Tree"(sic?) that was used to apply pressure loads over the wings of aircraft, but he wasn't able to provide me with further details.

I've found very limited information on such a device through internet searches, so I'm wondering if anyone knows of any sources of information on Wiffle Trees.

At this stage, I'm mainly concerned with how they operate and whether or not they are suited to my specific needs, so any information would be greatly appreciated.

Thanks in advance!

 

[mcgyvr]

Try "whiffle tree wing"
or "whiffle tree wing test" in google and read away

wHiffle not wIffle
don't forget the "H"

 

[Guest0527211403]

aHa! Thanks for clearing that up.
This certainly looks promising.

 

[drawoh]

justkeepgiviner,

Wiffle Trees are used to support mirrors on static telescopes.

If you can find a good book on opto-mechanical design, you should find a good description of a wiffle tree, complete with all the mathematics.

JHG

 

[ctopher]

They are also support structures for wing mfg.

Chris
SolidWorks/PDMWorks 08 3.1
AutoCAD 06/08
ctopher's home (updated Jul 13, 2008)