- Jan 13, 2011
- United States
The aluminum washers provide a lot of frictional damping, as the rubber scrubs against the aluminum as it compresses. In most installations I've seen of this particular type, the washers are a good bit bigger in diameter than the uncompressed rubber, to maintain that damping action longer in the "stroke" and to keep the rubber from squishing right over the aluminum washers. One example in "Landing Gear Design For Light Aircraft" uses rubbers of OD 3.5" and washers of OD 4.75"So, its off to make a stack of aluminum washers, I am!
SOME gear of this type BOND the rubber to the washers.