Development of a FLIGHTLAB Super Seasprite Simulation Model

摘要

The SH-2G(A) Super Seasprite helicopters used by the Royal Australian Navy employ a servo flap control system. The objective of this work was to provide a high fidelity simulation model of the Super Seasprite and its servo flap control system for implementation within Human Machine Interface (HMI) studies and incident investigations. The Air Operations Division, of the Defence Science & Technology Organisation uses FLIGHTLAB as its simulation development environment for rotary wing aircraft. FLIGHTLAB is a commercial tool developed by Advanced Rotorcraft Technology, Inc. (ART) for rotorcraft modelling and analysis, but does not provide allowance for incorporation of servo flaps as a control technique. To generate a model for the Super Seasprite control system, the rotor was initially modelled as an articulated rotor system, and then modified to provide tabbed rotor control of blade articulation. Insufficient aerodynamic information was available for the main and tail rotors, and the fuselage and stabilisers. As a result, data from similar aircraft was used where Seasprite data was not available. This paper presents modelling progress to date and outlines proposed validation. Comparison of stability derivatives between similar high fidelity helicopter models will be undertaken as a preliminary validation. Quantifying the model's level of fidelity is expected to be achieved through comparison between simulated and actual Kaman flight test data. Appropriate model changes will be made based on these validations to achieve the fidelity standards appropriate for HMI studies and incident investigation.