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Note on the Reduction of Harmonic Vertical Hub Forces

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A brief look at a portion of the results obtained in a rather extensive study of rotor vibratory characteristics reveals that it may be possible to alleviate harmonic vertical hub forces by passive means. A pronounced reduction in these vibratory forces could be realized, in present generation helicopters, by a judicious choice of torsional rigidity and chordwise mass balance.
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Document Type: Research Article

Affiliations: Aircraft Division, Kaman Corporation, Bloomfield, Connecticut

Publication date: 1968-04-01

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  • The Journal of the American Helicopter Society is the world's only scientific journal dedicated to vertical flight technology. It is a peer-reviewed technical journal published quarterly by AHS International and presents innovative papers covering the state-of-the-art in all disciplines of rotorcraft design, research and development. (Please note that AHS members receive significant discounts on articles and subscriptions.)

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    Authors can find submission guidelines and related information on the AHS website.

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