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The Helicopter in Free Ground Vibration: The Theoretical Determination of Natural Frequencies and Hub Characteristics of a Single Rotor Helicopter in Free Ground Vibration

B. Saravanos, A.F.R.Ae.S. (Chief Stressman, Saunders‐Roo Ltd. (Helicopter Division).)

Aircraft Engineering and Aerospace Technology

ISSN: 0002-2667

Article publication date: 1 December 1952

Abstract

A theoretical approach is presented with the object of determining the natural frequencies and hub characteristics of a single‐rotor helicopter in free ground vibration for use in the analysis of self‐excited mechanical oscillations of hinged rotor blades. The method is intended to obviate the experimental determination of these parameters, a technique which necessitates the construction of the helicopter before its vibrational features can be explored.

Citation

Saravanos, B. (1952), "The Helicopter in Free Ground Vibration: The Theoretical Determination of Natural Frequencies and Hub Characteristics of a Single Rotor Helicopter in Free Ground Vibration", Aircraft Engineering and Aerospace Technology, Vol. 24 No. 12, pp. 356-360. https://doi.org/10.1108/eb032235

Publisher

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MCB UP Ltd

Copyright © 1952, MCB UP Limited