The invention discloses an aircraft panel impact test boundary stiffness equivalent simulation method and device, and belongs to the technical field of aircraft ground tests. According to the equivalent simulation device, a local wall plate test piece is adopted to replace an overall fuselage frame to carry out an impact test, a supporting rack is arranged on a base, and a vertical rigidity simulation spring assembly and a bending rigidity simulation device are borne on the basis of the supporting rack; a torsional rigidity simulation spring assembly and a longitudinal rigidity simulation spring assembly are arranged on the bending rigidity simulation device, and a local wallboard test piece is installed on the bending rigidity simulation device. According to the simulation device, the boundary rigidity of the aircraft panel when the aircraft panel is impacted is decomposed into torsional rigidity, vertical rigidity and longitudinal rigidity, so that the boundary rigidity is converted into three groups of linear springs in different directions for rigidity simulation, accurate simulation of the boundary rigidity is ensured, decoupling of boundary rigidity simulation is also realized, and the simulation accuracy is improved. And the design difficulty of the test device is reduced.
本发明公开一种飞机壁板冲击试验边界刚度等效模拟方法及装置,属于飞机地面试验技术领域。本发明的等效模拟装置采用局部壁板试验件代替整体机身框架进行冲击试验,在基座上设置支撑台架,以支撑台架为基础,承载垂向刚度模拟弹簧组件和压弯刚度模拟装置,在压弯刚度模拟装置上设置扭转刚度模拟弹簧组件和纵向刚度模拟弹簧组件,在压弯刚度模拟装置上安装局部壁板试验件。该模拟装置将飞机壁板在受到冲击时的边界刚度分解为扭转刚度、垂向刚度和纵向刚度,使得边界刚度转化为三组不同方向的线性弹簧进行刚度模拟,保证边界刚度准确模拟的同时,也实现了边界刚度模拟的解耦,降低了试验装置的设计难度。
Aircraft panel impact test boundary stiffness equivalent simulation method and device
一种飞机壁板冲击试验边界刚度等效模拟方法及装置
11.04.2025
Patent
Elektronische Ressource
Chinesisch
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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