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Mathematical Simulation of a Vibrating Light Aircraft Piston Engine and Correlation with Engine Flight Test Data
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English
Abstract
Piston engines used in light aircraft occasionally experience extreme in-flight vibrations, especially while driving a two-bladed propellor during a severe yaw maneuver. This paper provides experimental evidence that this condition can be avoided by the judicious selection of the propeller and propeller shaft masses and stiffnesses. The paper also describes a digital computer program which successfully predicts the engine speed at which resonance will occur for a given propeller-engine combination. Because new airframe applications require the successful matching of both the engine and the propeller to the airframe, this program could provide airframe, propeller, and engine manufacturers with mutually acceptable solutions to their respective design requirements.
Authors
Citation
Syson, R. and Caron, R., "Mathematical Simulation of a Vibrating Light Aircraft Piston Engine and Correlation with Engine Flight Test Data," SAE Technical Paper 740383, 1974, https://doi.org/10.4271/740383.Also In
References
- Wiseman W. A. Ounsted E. J. “Tiara Light Aircraft Engines-A new Generation.” Paper 700205 presented at SAE National Business Aircraft Meeting Wichita March 1970
- Goulet C. R. “Tiara Engine-Propeller Shaft Loading Investigation.” Teledyne Continental Motors Report January 30 1970
- Greenstadt J. “The Determination of the Characteristic Roots of a Matrix by the Jacobi Method.” Mathematical Methods for Digital Computers New York John Wiley & Sons 1959