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A generic harmonic rotor model for helicopter flight simulation

Published online by Cambridge University Press:  04 July 2016

M. Chaimovich ,
A. Rosen  and
O. Rand
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Abstract

A new rotor model for helicopter flight mechanics simulation is presented. The rotor dynamics are described using multiblade coordinates, and the aerodynamic loads include nonlinear effects such as stall and compressibility. These loads are described as harmonic series. The number of harmonics in the series determines the model accuracy. Thus by changing the number of harmonics from one to a large number, it is possible to obtain models that range between a quasi tip path plane approach and an accurate blade element model. The user of the model can very easily change the model accuracy and consequently its efficiency. The new rotor model is investigated and its application for trim and manoeuvre calculations is presented and discussed.

Type
Research Article
Information
The Aeronautical Journal , Volume 97 , Issue 961 , January 1993 , pp. 14 - 24
Copyright
Copyright © Royal Aeronautical Society 1993 

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