The invention belongs to the technical field of fatigue tests, and discloses a flexible beam fatigue test loading device which comprises a flexible beam connector, an actuator cylinder and a centrifugal force loading structure, the front end of the flexible beam connector is connected with a flexible beam so that the flexible beam can be fixed relative to the flexible beam connector, and an eccentric shaft is arranged at the rear end of the flexible beam connector; a joint with a joint bearing is arranged at the front end of the actuating cylinder, the joint is rotatably connected to an eccentric shaft of a flexible beam joint, and shimmy force and flapping force are applied to the flexible beam through an eccentric structure; and the centrifugal force loading structure is indirectly connected with the flexible beam joint and applies simulated centrifugal force to the flexible beam. The device is simple in structure and convenient to disassemble and assemble, the flapping force and the shimmy force of the flexible beam of the helicopter can be simulated at the same time through one actuator cylinder, and the real working condition of the flexible beam of the helicopter can be simulated.
本发明属于疲劳试验技术领域,公开了一种柔性梁疲劳试验加载装置,包括柔性梁接头、作动筒和离心力加载结构,柔性梁接头的前端连接柔性梁使得柔性梁相对于柔性梁接头固定,柔性梁接头的后端设有偏心轴,作动筒的前端为带关节轴承的接头,接头可转动地连接在柔性梁接头的偏心轴上,通过偏心结构对柔性梁施加摆振力和挥舞力;离心力加载结构间接连接柔性梁接头并对柔性梁施加模拟的离心力。本发明结构简单,拆装方便,通过一个作动筒就能同时模拟针对直升机柔性梁的挥舞力和摆振力,能够模拟直升机柔性梁的真实工况。
Flexible beam fatigue test loading device
一种柔性梁疲劳试验加载装置
2023-03-07
Patent
Electronic Resource
Chinese
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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