Rotor blade inspection fixture

Details Rotor blade inspection fixture Rotor blade inspection fixture

1977-08-15

1979-04-03

Stearns, Richard R.

Geometrical instruments

Area integrators

Electrical

33174L, 33174P, G01B 524, G01B 520, G01B 730, G01B 728

Patent

active

041469674

ABSTRACT:
An apparatus for measuring the contour of rotor blades is provided. The apparatus or fixture of the present invention will measure airfoil shape and twist at any spanwise station along a rotor blade as well as measuring the chordwise and flapwise bow of the rotor blade. The fixture includes a base to which the blade is secured. A plate or templet like device is placed about the blade. The plate is secured to a carriage which is movable along the base so that it may traverse the blade along its span. Transducers connected to the plate measure the airfoil contour at particular spanwise stations. The plate is mounted to the carriage in such a manner that its rotation, vertical, and horizontal displacement may be measured and hence the twist, chordwise and flapwise bow may be determined.

REFERENCES:
patent: 2451155 (1948-10-01), De Boer et al.
patent: 2648912 (1953-08-01), Osgood
patent: 2703456 (1955-03-01), Smyth

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