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    2.
    发明专利
    未知

    公开(公告)号：DE2755557A1

    公开(公告)日：1978-07-06

    申请号：DE2755557

    申请日：1977-12-13

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： RYBICKI ROBERT CHARLES

    IPC: B64C27/35 ,  B64C27/33 ,  B64C27/48

    Abstract: A helicopter rotor having flexible blades mounted to a drive shaft by means of hub arms, wherein opposing blade members are interconnected by a common spar passing across the rotor axis. The spar members are supported from the hub arms by spherical bearing members. The universal freedom of these bearing members provides torsional freedom for blade pitching motions without restricting blade flapping or in-plane bending.

    5.
    发明专利
    未知

    公开(公告)号：CH609935A5

    公开(公告)日：1979-03-30

    申请号：CH1222776

    申请日：1976-09-28

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： RYBICKI ROBERT CHARLES ,  CUERDEN BRIAN

    IPC: B64C27/04 ,  B64C27/35 ,  B64C27/48

    Abstract: An elastomeric bearing for a helicopter rotor in which the laminates of the bearing are shaped and positioned so that the center of hydrostatic pressure generated in each elastomer laminate and the cross-sectional center of gravity of each metal laminate are in alignment so that the integrated load vectors reacted through the metal and elastomer laminates of the bearing in imparting blade centrifugal loads to the hub therethrough are substantially in alignment to thereby prevent the creating of eccentric internal moments and hence avoid life reducing bending and hoop stresses in the metal laminates and unnecessarily high hydrostatic pressures in the elastomer laminates.

    6.
    发明专利
    未知

    公开(公告)号：FR2374211A1

    公开(公告)日：1978-07-13

    申请号：FR7736966

    申请日：1977-12-08

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： RYBICKI ROBERT CHARLES

    IPC: B64C27/35 ,  B64C27/33 ,  B64C27/38

    Abstract: A helicopter rotor having flexible blades mounted to a drive shaft by means of hub arms, wherein opposing blade members are interconnected by a common spar passing across the rotor axis. The spar members are supported from the hub arms by spherical bearing members. The universal freedom of these bearing members provides torsional freedom for blade pitching motions without restricting blade flapping or in-plane bending.

    8.
    发明专利
    未知

    公开(公告)号：FR2329510A1

    公开(公告)日：1977-05-27

    申请号：FR7629525

    申请日：1976-10-01

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： RYBICKI ROBERT CHARLES ,  CUERDEN BRIAN

    IPC: B64C27/04 ,  B64C27/35 ,  B64C27/48 ,  B64C27/38

    Abstract: An elastomeric bearing for a helicopter rotor in which the laminates of the bearing are shaped and positioned so that the center of hydrostatic pressure generated in each elastomer laminate and the cross-sectional center of gravity of each metal laminate are in alignment so that the integrated load vectors reacted through the metal and elastomer laminates of the bearing in imparting blade centrifugal loads to the hub therethrough are substantially in alignment to thereby prevent the creating of eccentric internal moments and hence avoid life reducing bending and hoop stresses in the metal laminates and unnecessarily high hydrostatic pressures in the elastomer laminates.

    9.
    发明专利
    未知

    公开(公告)号：DE2643166A1

    公开(公告)日：1977-05-12

    申请号：DE2643166

    申请日：1976-09-24

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： RYBICKI ROBERT CHARLES ,  CUERDEN BRIAN

    IPC: B64C27/04 ,  B64C27/35 ,  B64C27/48

    Abstract: An elastomeric bearing for a helicopter rotor in which the laminates of the bearing are shaped and positioned so that the center of hydrostatic pressure generated in each elastomer laminate and the cross-sectional center of gravity of each metal laminate are in alignment so that the integrated load vectors reacted through the metal and elastomer laminates of the bearing in imparting blade centrifugal loads to the hub therethrough are substantially in alignment to thereby prevent the creating of eccentric internal moments and hence avoid life reducing bending and hoop stresses in the metal laminates and unnecessarily high hydrostatic pressures in the elastomer laminates.

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