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- Publisher
- Emerald Publishing
- Copyright
- Copyright © Emerald Group Publishing Limited
- ISSN
- 0002-2667
- DOI
- 10.1108/eb030653
- Publisher site
- See Article on Publisher Site
Abstract
ONE of the most troublesome problems associated with the development of rotarywing systems in which flapping hinges are utilized to compensate for the aerodynamic dissymmetry of forward flight has been the rotational oscillation of the blades. To accommodate the horizontal plane dissymmetry Fig. 4, Ref. 42 due to flapping, vertical drag hinges are usually provided, but an alternating bending moment is produced at the blade root due partly to the displacement of the blade about its drag hinge being out of phase with the displacing moment and partly to the necessity for some form of restraint to prevent instability of the oscillating motion of the blade about this hinge.
Journal
Aircraft Engineering and Aerospace Technology – Emerald Publishing
Published: Jun 1, 1940