Device for rotary wing aircraft capable of providing information relative to the level of fatigue-related damage of said device
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United States of America Patent
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May 29, 2018
Issued Date -
N/A
app pub date -
Mar 30, 2016
filing date -
Mar 31, 2015
priority date (Note) -
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Abstract
A device configured for insertion between two parts of a rotary wing aircraft that are likely to undergo a repeated relative movement. The device includes at least two frame elements intended to be mounted on at least one of the two parts of the aircraft, and at least one layer of elastomer positioned between the two frame elements, the at least one layer defined by a first surface belonging to the inner volume of the device, a second surface also belonging to the inner volume of the device, and an outer surface not belonging to the inner volume of the device. The inner volume of the device includes at least two independent pouches each positioned at a predetermined distance from the outer surface, each pouch being filled with a product capable of flowing outside its pouch when a crack has spread from said outer surface toward the pouch in question.
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