A vibration isolator (20) operative for reducing vibration active on a main rotor (12) of a rotorcraft. The vibration isolator (20) includes a hub attachment fitting (22) secured in combination with the main rotor (12) and a spring-mass system (24) mounting to and rotating with the hub attachment fitting (22). The vibration isolator (20) is characterized by the spring-mass system (24) having a fairing (44) operative to aerodynamically contour the spring-mass system (24) while providing a portion of the working mass thereof. Other features of the vibration isolator include adapting the hub attachment fitting (22) to accept hub-mounted rotor systems (36), provide access to the rotor hub mounting attachment (34), and provide a motion limiting portion (74) for reducing loads acting on the spring-mass system (24).
申请公布号
EP1007406(A2)
申请公布日期
2000.06.14
申请号
EP19980958440
申请日期
1998.08.18
申请人
SIKORSKY AIRCRAFT CORPORATION
发明人
SCHMALING, DAVID, N.;MINER, FREDERICK, J.;KRAUSS, ALBERT, T.;FREDERICKSON, KIRK, C.