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Harmonic Torque Exciters: A Mathematical Analysis of Their Motion and Loadings

Aircraft Engineering and Aerospace Technology

ISSN: 0002-2667

Article publication date: 1 August 1939

Abstract

IN a paper on airscrew‐blade vibration, published in the Journal of the Royal Aeronautical Society lor September, 1937, the author gave brief descriptions of different designs of the same general typo of mechanism for exciting harmonic torques in airscrew drives for experimental purposes. 1n these exciters, harmonic inertia torque is produced by rotating a set of identical unbalanced pinions mounted in a Gage and arranged symmetrically about a shaft axis. The pinion axes are parallel to the shaft axis and the pinions are driven either by a sun gear or by an annulus gear. The gear meshing is such that the direction of unbalance for all the pinions of the set is radially outwards at the same instant: when the unbalance is radially outwards or inwards there is momentarily no torque effect.

Citation

Carter, B.C. (1939), "Harmonic Torque Exciters: A Mathematical Analysis of Their Motion and Loadings", Aircraft Engineering and Aerospace Technology, Vol. 11 No. 8, pp. 306-308. https://doi.org/10.1108/eb030525

Publisher

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MCB UP Ltd

Copyright © 1939, MCB UP Limited