The Dynamic Stability of Wing-Mounted Engine Installations for Turboprop-Powered Aircraft

[+] Author and Article Information
D. J. Tree, R. G. Alderson, J. W. Harvey, D. R. Mason

Airesearch Manufacturing Company of Arizona, Phoenix, Ariz.

J. Eng. Power 97(2), 275-281 (Apr 01, 1975) (7 pages) doi:10.1115/1.3445982 History: Received November 27, 1973; Online July 14, 2010


This paper presents a detailed analytical study of the dynamic stability of wing-mounted engine installations. Wing, nacelle, and mount system stiffness, inertia, and damping are considered in the dynamic modeling, and aerodynamic characteristics of the wing and propeller are included. Variations of these parameters and their interplay are investigated. Significant effects that are beyond the range of simplified methods have been identified. An estimate of the accuracy of predicted critical velocity is included. Also provided are recommendations for ground testing to support an analysis of this type.

Copyright © 1975 by ASME
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