Fuzzy Control Technology for Aircraft Engine Torque Vibration Based on Torque Amplitude Dynamic Signal Denoising
The torque vibration of aircraft engines can cause resonance in the fuselage,leading to increased vibration and structur-al failure.In order to ensure the safety of the aircraft,a fuzzy control technology for aircraft engine torque vibration based on torque amplitude dynamic signal denoising is designed.Based on the dynamic analysis results of the entire aircraft engine,clarify its vibration characteristics such as amplitude,frequency,and phase during operation.Based on this,MEMS acceleration sensors are used to col-lect the actual torque amplitude dynamic signals of aircraft engines,and singular spectrum analysis algorithms are used to denoise the collected dynamic signals and extract main components of the signals.Design the fuzzy control technology and take the denoised torque amplitude dynamic signal as the input variable to achieve the fuzzy control of engine torque vibration.The test results indicate that af-ter applying the designed control technology,different rotors are suit for displacement changes.and the torque vibration suppression rate is relatively high under different support stiffness.At the broadband state test point,the surface acceleration of the outer casing converges to within 0.04 m/s2,while at the narrowband state test point,it converges to about 0.03 m/s2.Therefore,the design con-trol technology has good control effects,which can ensure the stability of the aircraft engine and have a high suppression performance.
vibration sensorMEMS acceleration sensordynamic?signalaircraft enginestorque vibrationfuzzy control
万方数据
维普
