The invention belongs to the technical field of helicopter rotor tests, and particularly relates to a rotor wing integral vibration mode excitation method for rotor wing aeroelastic stability test. Three vibration exciters are adopted to apply cooperative excitation to an immovable ring of an automatic inclinator. The cooperative excitation comprises three-cylinder total distance excitation and three-cylinder nutation type excitation. Rotor wing set type overall vibration mode measurement and periodic type overall vibration mode measurement are achieved respectively, a response signal only comprises one frequency component, and the mode recognition data processing precision is greatly improved.
本发明属于直升机旋翼试验技术领域,尤其涉及一种旋翼气弹稳定性试验旋翼整体振型激振方法。采用三个激振器对自动倾斜器不动环施加协同激励。协同激励包括:三缸总距激振和三缸章动型激振。分别实现旋翼集合型整体振型模态和周期型整体振型模态测量,响应信号中只包含一个频率成分,大大提高模态识别数据处理的精度。
Rotor wing integral vibration mode excitation method for rotor wing aeroelastic stability test
一种旋翼气弹稳定性试验旋翼整体振型激振方法
12.01.2021
Patent
Elektronische Ressource
Chinesisch
IPC: | G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen / B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen |
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