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 ® .