Analysis of Dynamic Pressure Feedback Characteristics of Aircraft Control Surface Actuation System
The key subsystem of the electro-hydraulic servo actuation system has the problem of resonance between the actuation system and the aircraft control surface structure in practical work.In order to study the stability of aircraft electro-hydraulic servo actuation systems,a complete and accurate mathematical model of the servo system is established.A method of using dynamic pressure feedback control algorithm to improve servo stability is proposed without reducing performance.A compensation effect and principle of dynamic pressure feedback is introduced,models the system with dynamic pressure feedback,and verifies the step and frequency characteristics of the system through simulation.The results show that the introduction of dynamic pressure feedback does not reduce system performance,and improves system damping at structural resonance,effectively solving the resonance problem and achieving stability enhancement.The preliminary research on the dynamic pressure feedback technology of the electro-hydraulic servo actuation system,has great application value for subsequent model design.
electro-hydraulic servo actuation systemdynamic pressure feedbackmathematics modelingresonant frequency
万方数据
维普
