The invention belongs to the technical field of flight test, and particularly relates to a flutter excitation test system and method for a fixed-wing aircraft. Comprising an excitation device and a test system. The excitation device comprises an excitation small rocket arranged at an excitation point position of a wingtip of an elastic structure on the aircraft, and an ignition control system electrically connected with the excitation small rocket; the test system comprises an airborne signal acquisition subsystem and a vibration signal acquisition subsystem. The airborne signal acquisition subsystem comprises a data acquisition recorder and a GPS antenna and is used for recording flight state parameters and GPS time of an airplane; the vibration signal acquisition subsystem comprises a low-frequency vibration acceleration sensor arranged at a test point position of a rigid plane of an elastic structure on an airplane, and a data acquisition recorder. Various flutter modes can be accurately, conveniently and efficiently obtained through the excitation device, and flight state parameters and vibration parameters required by flutter analysis are obtained through the test system.
本发明属于试飞测试技术领域,具体涉及一种固定翼飞机颤振激励测试系统及方法。包括激励装置、测试系统;所述激励装置包括设置于飞机上的弹性结构的翼尖处激励点位的激励小火箭,以及与所述激励小火箭电连接的点火控制系统;所述测试系统包括机载信号采集子系统、振动信号采集子系统;所述机载信号采集子系统包含一台数据采集记录器和一个GPS天线,用于记录飞机的飞行状态参数和GPS时间;振动信号采集子系统包括设置于飞机上的弹性结构的刚性平面处测试点位的低频振动加速度传感器,和一台数据采集记录器。本发明能够准确、便捷、高效的通过激励装置获得各种颤振模态,通过测试系统获得颤振分析所需的飞行状态参数和振动参数。
Flutter excitation test system and method for fixed-wing aircraft
一种固定翼飞机颤振激励测试系统及方法
2024-03-22
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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