Abstract:Firstly, the mathematical models of actuator amplifier, Jet Tube Valve, actuator, feedback potentiometer and other key components are established according to the operational principle of pneumatic actuator of an export-type guidance weapon Then MATLAB/Simulink simulation is carried out according to the established mathematical model to verify the accuracy of the model in frequency domain and time domain, in order to solve the problem of“Burr” interference in the pneumatic rudder during the target test of guided munitions, the mathematical models of the key components of the rudder are injected with“Burr” interference simulation respectively, and it is compared with the telemetry data of the target test of the guided ammunition. The simulation results show that the fault of pneumatic actuator feedback potentiometer can lead to the problem of“Burr”, and the“Burr” interference can be eliminated after the actual elimination, it provides a theoretical basis for failure mode analysis of pneumatic rudder of follow-up guidance weapon.