EFFECT OF FEEL SYSTEM CHARACTERISTICS ON PILOT MODEL PARAMETERS

摘要

The paper presents recent experimental data onthe effect of control manipulator feel systemcharacteristics, such as force gradient anddamping, on the pilot model. The analysis of theeffect is conducted on the basis of describingfunctions identified in compensatory rolltracking task. Identification of the limbmanipulatorfrequency responses was possibleby introducing an input signal to themanipulator loading system. The analysis showsthat force gradient variation affectsneuromuscular describing function,demonstrating adaptation of pilot tomanipulator force variation. Due to theadaptation, the limb-manipulator cutofffrequency remains constant within the forcegradients assessed by the pilots as optimum.The feel system damping does not demonstrateany noticeable effect on limb-manipulatordescribing function. Taking into account, thelimb-manipulator operation changes thetraditional presentation of pilot model transferfunction at frequencies above 6-8 rad/s.