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Aerospace Instrument-Making

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METHODOLOGY FOR PERFORMING SIMULATION EXPERIMENT AT A MULTIFUNCTIONAL HELICOPTER’S STAND BRIEF
E.P. Verteletskaya, A.A. Malakhov, S.K. Urazbayev, N.N. Fashchevsky

The article presents methodology for performing an experiment at the stand for a semi-natural modeling of helicopter movement. The simulation experiment studies dynamic characteristics of helicopter – the object of control, as well as to adjust the control loop. To obtain quantitative data, which show dependency of motion parameters of the object on controlling or disturbing influences, it is necessary to perform a series of steps, namely to switch on, tune and set up the stand of helicopter model to the initial flight mode. When analyzing the data obtained, it was taken into account that the model of the total spatial motion is carried out at the stand; to study the parameters of the pitching motion, it is necessary to ensure the stabilization of motion along the coordinates of the roll and course. Processing of the experimental results was performed in the Matlab software package using the algorithms for identifying the parameters of the mathematical model. The analysis of the results was carried out taking into account the mathematical model of the helicopter, which was obtained from the equations of motion.
Keywords: helicopter, mathematical model, pitch motion, angular velocity, control system, simulation experiment, system identification.


DOI: 10.25791/aviakosmos.08.2019.818

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Pp. 33-44.

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