Effect of the pilot behavior model on the helicopter stability in the auto-stabilization system failure

This paper describes a mathematical identification of time constants for pilot behavior during a helicopter control process. Based on this mathematical identification and a mathematical description of helicopter dynamics, a simulation scheme was built in the Simulink^® environment. Subsequently, the analysis of time constant changes in a pilot behavior model during helicopter longitudinal motion was done, including changes in transfer delay as well as in pilot´s gain. The obtained results are presented in the selected examples in the form of 3D graphs, all created in MATLAB^®.