Real-time adjustment control method for 1 Omega harmonic vibration of rotor

• Main Authors: YU GUORUI, QIU ZHIXIANG, ZHANG YINGQI, WANG WEITE, HUANG GUOKE, WANG CHUANDA
• Format: Patent
• Language: Chinese; English
• Published: 21.01.2022
• Subjects: AEROPLANES; AIRCRAFT; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS; AVIATION; COSMONAUTICS; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING ORREPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLYADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFTCOMPONENTS, NOT OTHERWISE PROVIDED FOR; HELICOPTERS; MEASURING; MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; PHYSICS; TARIFF METERING APPARATUS; TESTING; TRANSPORTING

The invention belongs to the technical field of rotor vibration control, and discloses a real-time adjustment control method for 1-omega harmonic vibration of a rotor, which comprises the following steps of step 1, acquiring data; step 2, processing the collected data; and obtaining a 1- omega vibration amplitude of the vibration data; step 3, repeating the step 1 and the step 2 for N times to obtain N groups of 1 omega vibration amplitudes, N groups of pull rod disturbance displacements and N groups of blade tip heights; step 4, according to the N groups of 1-omega vibration amplitudes and the corresponding N groups of pull rod disturbance displacements, obtaining a conversion matrix T between the pull rod disturbance displacements and the 1-omega vibration amplitudes through a least square identification algorithm; step 5, according to the N groups of blade tip heights and the corresponding N groups of pull rod disturbance displacements, obtaining a conversion matrix A between the pull rod disturbance displ