The invention belongs to the technical field of vibration active control, and discloses a multidirectional excitation device and system for a helicopter vibration active control system. The multidirectional excitation device comprises a vibration exciter body, a fixing ring, a fixing rack and a group of springs; the two ends of four support columns of the fixing rack are connected with the edges of the upper fixing surface and the lower fixing surface respectively; the vibration exciter body is arranged in the fixing rack, and the upper end of the vibration exciter body is connected with the upper fixing surface through a vibration excitation rod; the fixing ring is connected with the middle of the side wall of the vibration exciter body through bolts; and the upper end face and the lowerend face of the fixing ring are connected with the upper fixing surface and the lower fixing surface through the group of springs respectively. A common electromagnetic vibration exciter on the marketis used as an excitation source, so that excitation output larger than the maximum output force of the electromagnetic vibration exciter can be achieved; the excitation device is directly connected with a loaded face, so that the complex situation of mechanical coupling is avoided, and the helicopter load simulation in the ground test environment of the multi-directional vibration reduction efficiency of the helicopter vibration active control system can be better achieved.
本发明属于振动主动控制技术领域,公开了一种用于直升机振动主动控制系统的多向激励装置及系统。包括:激振器本体、固定环、固定台架和一组弹簧;固定台架的四根支撑柱两端分别与上固定面和下固定面边缘连接;激振器本体设置在固定台架内,激振器本体上端通过激振杆与上固定面相连;固定环与激振器本体侧壁中部通过螺栓连接;固定环上端面和下端面分别通过一组弹簧连接上固定面和下固定面。使用市面上常见的电磁式激振器作为激励源,便可实现大于电磁激振器最大输出力的激励输出,并通过激励装置直接与受载面连接,从而避免产生机械耦合的复杂情况,可更好地实现直升机振动主动控制系统多向减振效率地面试验环境中的直升机载荷模拟。
Multidirectional excitation device and system for helicopter vibration active control system
一种用于直升机振动主动控制系统的多向激励装置及系统
2021-01-12
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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