The invention belongs to the technical field of helicopter hub center dynamic characteristic test loading, and relates to a helicopter hub center dynamic characteristic test excitation amplitude value adjusting method and device. The amplitude command of the frequency sweep voltage signal can be automatically adjusted in real time according to the vibration amplitude of the helicopter buffer in the vibration frequency sweep process, and it is guaranteed that vibration excitation applied to the propeller hub of the helicopter enables the helicopter to have obvious vibration and the landing gear buffer always meets the specified value requirement of the vibration amplitude. The problem that the test is stopped due to the fact that the vibration amplitude of the undercarriage buffer exceeds the limit in the test process is solved, the vibration amplitude of a helicopter body is prevented from being too large, the possibility of damage to a testing machine is reduced, the test loading control automation degree and the test efficiency are improved, and the test period is shortened.
本发明属于直升机桨毂中心动特性试验加载技术领域,涉及一种直升机桨毂中心动特性试验激振幅值调整方法及装置。实现振动扫频过程中能够根据直升机缓冲器的振动幅值实时自动调整扫频电压信号的幅值命令,保证施加在直升机桨榖处的振动激励使直升机具有明显振动且起落架缓冲器始终满足振动幅值规定值要求,解决了试验过程中经常发生起落架缓冲器的振动幅值超限导致试验停止的问题,避免了直升机机体振动幅值过大,降低了对试验机造成损伤的可能性,提高了试验加载控制自动化程度和试验效率,缩短了试验周期。
Helicopter hub center dynamic characteristic test excitation amplitude value adjusting method and device
一种直升机桨毂中心动特性试验激振幅值调整方法及装置
2024-03-15
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 |
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