| 摘要 |
The invention relates to a coupling device (28) for supporting a first wing section (22) against a second wing section (24) of an aircraft (10), that is configured for passive flight load alleviation and comprises a housing (36) comprising a chamber (50), wherein the chamber (50) comprises a first portion (52) as well as a second portion (54) and is filled with a fluid, a piston device (42) movably arranged in the chamber (50), wherein the piston device (42) separates the first portion (52) from the second portion (54) in a fluid tight manner, a first fluid pathway (56) connecting the first portion (52) to the second portion (54), a first pressure relief valve (60) arranged in the first fluid pathway (56), wherein the first pressure relief valve (60) blocks the first fluid pathway (56), if the pressure in the second portion (54) is smaller than a first relief pressure and opens the first fluid pathway (56), if the pressure in the second portion (54) is greater than the first relief pressure. In addition, the coupling device (28) can be used to acutate the second wing section (24) against the first wing section (22). |
