The invention provides a state monitoring method and system for an aircraft flap control system. An equivalent dynamic model of the flap mechanical transmission system is constructed, and a new methodis provided for selecting airplane health monitoring characteristic parameters. An equivalent dynamic model and a mathematical model of the model are constructed by using a multi-degree-of-freedom method, so that a transfer function capable of reflecting main characteristics of the system is obtained. And a new value of an equivalent parameter in the equivalent dynamic model is calculated based on CAD model parameter selection and empirical formula, and a spring-damping-mass parameter of the flap equivalent model is identified. Factors influencing the health state of the system are searched for by analyzing the mechanism of the system, and the factors influencing the health state of the flap control system and parameters reflecting the health state are verified through simulation analysis. The state of the multi-degree-of-freedom aircraft flap control system is monitored based on the aircraft health characteristic parameters.
本发明提出了一种飞机襟翼操纵系统的状态监测方法及系统。本发明构建了襟翼机械传动系统的等效动态模型,并为选择飞机健康监测特征参数提供了一种新的方法。利用多自由度法构建模型的等效动态模型和数学模型,从而得到能够反映系统主要特性的传递函数。并提供了一种新的基于CAD模型参数选取及经验公式计算等效动态模型中的等效参数的值,辨识出了襟翼等效模型的弹簧‑阻尼‑质量参数。通过分析系统的机理寻找影响系统健康状态的因素,通过仿真分析验证影响襟翼操纵系统健康状态的因素及反映健康状态的参数。实现了基于飞机健康特征参数对多自由度的飞机襟翼操纵系统的状态进行监测。
State monitoring method and system for aircraft flap control system
一种飞机襟翼操纵系统的状态监测方法及系统
2020-05-01
Patent
Electronic Resource
Chinese
IPC: | B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / 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 |