Measuring and testing – Vibration – By mechanical waves
Patent
1992-08-19
1994-12-13
Chilcot, Jr., Richard E.
Measuring and testing
Vibration
By mechanical waves
73640, 73641, 73633, G01N 924
Patent
active
053720431
ABSTRACT:
Ultrasonic inspection of composite products such as curved components of airplane engine nacelles utilizes guide wheels and rollers to support and control the nacelle component or panel and permit rotation of the nacelle panel about its longitudinal axis. The nacelle panel is passed through an inspection zone which contains an ultrasonic inspection assembly comprising ultrasonic transmitting transducers and ultrasonic receiving transducers mounted on opposite sides of the nacelle panel. The ultrasonic inspection assembly is mounted to be moved along a frame by a drive assembly whereby the ultrasonic inspection assembly is translated across the width of the nacelle panel. The nacelle panel is rotated about its axis in small incremental rotational steps by a cable driven by a motor drive assembly. After each incremental rotational movement of the nacelle panel, the ultrasonic inspection assembly is translated across the width of the nacelle panel to inspect the portion aligned with the frame. The entire nacelle is thus inspected as it is rotated through the ultrasonic inspection assembly.
REFERENCES:
patent: 4018082 (1977-04-01), Manoliu et al.
patent: 4304133 (1981-01-01), Feamster, III
patent: 4562737 (1986-01-01), Davies
patent: 4685966 (1987-08-01), Garner et al.
Blackstock Thomas J.
Burns Fred M.
Lotz Donald S.
Speight, II John W.
Chilcot Jr. Richard E.
Felber Joseph L.
Vought Aircraft Company
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