| 摘要 |
<p>The vibration absorber for vibrations in the plane of a helicopter rotor, consists of at least two resonators attached to the hub (2) of the rotor by a rigid support. Each resonator is formed from two dished pieces (18, 19) which are secured together and sealed along side flanges to form an enclosure, inside which is trapped a metal, or metal alloy, ball (24) of high density. The side walls of the dished pieces (27, 28) are sloped so that they form a track for the ball when it is subjected to centrifugal and vibrational forces.</p> |
