Could sports foam be used for shock absorption?

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Grimace

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Joined
Jan 2, 2009
Messages
302
Location
Chicago, IL
I'm speaking about ultralight aircraft here, just to be clear.

Rubber donuts, springs, shock cords, and spring steel gear all suffer the same problem - fast rebound. The solution is air oleo struts, but those are heavy.

Would it be possible to engineer (or aquire) an off-the-shelf memory foam type of solution that could even offer a good fraction of the benefits of an air oleo strut set up without the weight and cost?

Of course, the memory foam you use on your seats would be too soft, but I'm thinking of something more along the lines of what they wrap NFL goal posts or high school gym walls with. You could possibly even use it in conjunction with a spring.
 
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Grimace

Well-Known Member
Joined
Jan 2, 2009
Messages
302
Location
Chicago, IL
Yeah. I did some maths. It looks like that's in the ballpark of what I was thinking of. Very cool. Thanks!
 

pictsidhe

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Jul 15, 2014
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7,529
Location
North Carolina
I am planning 'rubboleos' for my 103. Look up 'resilience', it's a measure of the internal damping of rubber. With resilience of 1, damping is zero. This a different property to durometer.
 
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