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Technical Notes: The Rotor Blade Flap Bending Problem—An Analytical Test Case

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There is growing interest in solving the rotary wing aeroelastic equations using finite element theories. To test or validate these finite element solutions, as well as other solution approaches such as normal modes, a numerically exact solution for the simple, uncoupled, out‐of‐plane, flap bending of a rotor blade in forward flight is provided. The analytical test case was created by defining a representative deflection and solving backwards for the forcing function that satisfied the governing fourth‐order equation.
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Document Type: Research Article

Affiliations: F. D. Harris & Associates, Fountain Hills, Az.

Publication date: 1992-10-01

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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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