Abstract
The study on the training process of the ship's operator shows the characteristics of the man-machine system, so, its results can be used to decide the requirement of the ship manoeuvarability and fairway condition. Authors studied the training process in the tracking task for 6 fairway conditions with 3 kinds of ship. It is verified that human-control law is written by formula (7), and constant K_x, K_∽ is changing through the training process. The changing process of the K_x, K_ψ can be approximated by the training process curve, formula (8), which is usually used for description of the training process. Total system (shown in Fig.4. Block diagram) is improved with the change of the operator's characteristics. Using the Nyquist criterion, the change of the total system is understood as the change of the stability denoted by the phase margin. Increasing the training, the system stability converges on the constant value.
