Rotor blade internal damper

Details Rotor blade internal damper Rotor blade internal damper

1977-08-02

1980-02-12

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Formed with main spar

416145, 416229R, 416500, B64C 2746

Patent

active

041881710

ABSTRACT:
A load absorbing elastic member or members is incorporated in the design of a rotor blade to assist in reducing flapwise and chordwise bending moments, torsional loading, and to reduce or eliminate the control system loads induced by rotor blade moment stall. In all its embodiments, the load absorbing elastic member has operatively associated therewith a constraining member which serves as a strain amplifier permitting the load absorbing elastic member to achieve its purpose effectively.

REFERENCES:
patent: 2568230 (1951-09-01), Gluhareff
patent: 2950766 (1960-08-01), Huber
patent: 2951542 (1960-09-01), Stulen et al.
patent: 2961053 (1960-11-01), Prewitt et al.
patent: 3168144 (1965-02-01), Capowich et al.
patent: 3217807 (1965-11-01), Underhill et al.
patent: 3484174 (1969-12-01), McCoubrey
patent: 3586460 (1971-06-01), Toner
patent: 3603701 (1971-09-01), Tarczynski
patent: 3645481 (1972-02-01), Purdy
patent: 3782856 (1974-01-01), Salkind et al.

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