Distributed deflection sensing of rotating beams

Amr M. Baz; Sean Poh

doi:10.1117/12.152776

8 September 1993 Distributed deflection sensing of rotating beams

Amr M. Baz, Sean Poh

Proceedings Volume 1917, Smart Structures and Materials 1993: Smart Structures and Intelligent Systems; (1993) https://doi.org/10.1117/12.152776
Event: 1993 North American Conference on Smart Structures and Materials, 1993, Albuquerque, NM, United States

Abstract

A new class of distributed sensors is presented which can measure both the linear and angular deflections of composite rotating beams. The sensor relies in its operation on a set of wires which are embedded off the neutral axes of the composite beams. The wires are arranged in a special manner which allows continuous monitoring of the deflection curve of the rotating beam without the need for knowing the modal characteristics of the beam or its rotating speed. The output signals of the wires are processed to determine the linear and angular displacements at critical discrete points along the beam axis. The theoretical and experimental performance of the sensor are presented in both the time and frequency domains. The performance is also monitored at different rotational speeds and tilt angles of the rotating beam.

Citation Download Citation

Amr M. Baz and Sean Poh "Distributed deflection sensing of rotating beams", Proc. SPIE 1917, Smart Structures and Materials 1993: Smart Structures and Intelligent Systems, (8 September 1993); https://doi.org/10.1117/12.152776

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