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2020 | OriginalPaper | Buchkapitel

Validation of Rotor-Disc Model for Light Autogyro in Steady-State Flight Mode

verfasst von : Shahrul Ahmad, Douglas Thomson

Erschienen in: Proceedings of International Conference of Aerospace and Mechanical Engineering 2019

Verlag: Springer Singapore

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Abstract

Most rotorcraft flight dynamic studies employed higher fidelity rotor modelling approach to precisely resemble the dynamic behaviour of the real rotorcraft in simulation. However, high-fidelity calculations always implemented at the expense of other simulation costs, such as the CPU run-time and the machine hardware. This paper is aimed to highlight the used of lower fidelity rotorcraft calculation approach for light autogyros in normal flight mode where extensive calculations are less vital. A lower fidelity helicopter simulation package, named Helicopter Generic Simulation (HGS) is used as the basis where the structural features are modified according to the unique autogyro’s kinematics. Due to the common longitudinal stability issues previously experienced by typical light autogyros, validations are made in longitudinal steady-state flight mode against the real flight data of the test autogyro. Simulation results show tolerable steady-state predictions of important parameters, such as the fuselage pitch attitude and the longitudinal shaft tilt. Hence, it is recommended to employ the rotor-disc modelling approach for autogyro’s applications that are not subjected to complex rotor blade dynamics, such as in automatic flight control and inverse simulations in normal flight mode.

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Metadaten
Titel
Validation of Rotor-Disc Model for Light Autogyro in Steady-State Flight Mode
verfasst von
Shahrul Ahmad
Douglas Thomson
Copyright-Jahr
2020
Verlag
Springer Singapore
DOI
https://doi.org/10.1007/978-981-15-4756-0_42

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