A helicopter (10) is roll vibration resistant having cantilever spring (40) supported masses (42) located at extreme outboard locations (30). The spring portion (40) extends substantially horizontally and is rigidly secured to rigid structure (28). This vibration absorber (34) is tuned to the forced frequency established by the normal rotor (14) RPM times the number of rotor blades (16).
申请公布号
CA2010802(A1)
申请公布日期
1990.10.18
申请号
CA19902010802
申请日期
1990.02.23
申请人
UNITED TECHNOLOGIES CORPORATION
发明人
SHEEHY, THOMAS W.;JENNEY, DAVID S.;MORDAUNT, PHILLIP