The invention provides a seesaw type rotor wing fatigue test device and a working method thereof. The seesaw type rotor wing fatigue test device comprises a frame unit, and a paddle root fixing unit,an exciting force unit and a centrifugal force unit which are fixed in the frame unit. The test motor drives the eccentric wheel to rotate after the rotating speed is adjusted through the frequency converter, and drives the excitation box through the connecting rod mechanism, so that the excitation box generates flapping moment and shimmy moment loads for simulating various working conditions of the rotor according to test input requirements; meanwhile, centrifugal force is applied through a chain block, transmitted to a steel wire rope pulley block through a steel wire rope connecting rod mechanism and then transmitted to a paddle test piece; and finally, the amplitude of each channel of the profile is monitored through a dynamic strain measurement system to obtain corresponding data of the rotor fatigue test. The device is designed for common seesaw-type rotor wings of the rotorcraft, and has the advantages of being simple in structure, convenient and reliable to use and the like.
本发明提供了一种跷跷板式旋翼疲劳试验装置及其工作方法,该装置包括框架单元以及固定在框架单元内部的桨根固定单元、激振力单元和离心力单元。试验电机通过变频器进行转速调整后带动偏心轮转动,经过连杆机构,带动激振盒,使其根据试验输入需求产生模拟旋翼各种工况下的挥舞力矩和摆振力矩载荷;同时通过手拉葫芦进行离心力施加,离心力通过钢丝绳连杆机构传至钢丝绳滑轮组,进而传递在桨叶试验件;最后通过动态应变测量系统监测剖面的各通道的振幅,得到旋翼疲劳试验的相应数据。本发明针对旋翼机常用的跷跷板式旋翼进行设计,具有结构简单,使用方便可靠等优点。
Seesaw type rotor wing fatigue test device and working method thereof
跷跷板式旋翼疲劳试验装置及其工作方法
2020-09-11
Patent
Electronic Resource
Chinese
IPC: | 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 / G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS , Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen / G01H MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES , Messen von mechanischen Schwingungen oder Ultraschall-, Schall- oder Infraschallwellen / G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen |
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