An aircraft structure strength test full-aircraft ground hoisting pose monitoring method comprises the steps that displacement sensors are symmetrically arranged at a measuring point P1 of the front section of an aircraft body, a measuring point P2 of a left wing and a measuring point P3 of a right wing; constructing a global coordinate system by taking the aircraft course as the x-axis direction, taking the connecting line of the P2 measuring point and the P3 measuring point as the y-axis direction, taking the midpoint of the connecting line of the P2 measuring point and the P3 measuring point as the original point, taking the backward direction of the aircraft course as the x-axis positive direction, taking the rightward direction of the unfolding direction of the aircraft as the y-axis positive direction and taking the vertical upward direction as the z-axis positive direction; taking a midpoint of a connecting line of the P2 measuring point and the P3 measuring point as a point O; the method comprises the following steps: in the airplane hoisting process, calculating the coordinate variation of a P1 measuring point and an O point along a z axis under a global coordinate system deducting the change influence of an airplane roll angle thetag at the airplane pitch angle thetaf and the airplane roll angle thetag at the previous moment so as to iteratively calculate the airplane pitch angle thetaf and the airplane roll angle thetag; and the deviation between the aircraft pitch angle theta f and the aircraft roll angle theta g obtained through iterative calculation and the last iteration value is smaller than a set value.
一种飞机结构强度试验全机地面起吊位姿监测方法,包括:在机身前段P1测点、左机翼P2测点、右机翼P3测点,对称布置位移传感器;以飞机航向为x轴方向,以P2测点、P3测点的连线为y轴方向,以P2测点、P3测点连线的中点为原点,以飞机航向向后为x轴正方向,飞机展向向右为y轴正方向,垂向向上为z轴正方向,构建全局坐标系;取P2测点、P3测点连线的中点为O点;在飞机起吊过程中,以上一时刻的飞机俯仰角θf、飞机滚装角θg,计算扣除飞机滚转角θg变化影响的P1测点、O点全局坐标系下沿z轴的坐标变化量进而迭代计算飞机俯仰角θf、飞机滚转角θg,直至迭代计算所得飞机俯仰角θf、飞机滚转角θg与上一次迭代值偏差小于设定值。
Aircraft structure strength test whole-aircraft ground hoisting pose monitoring method
一种飞机结构强度试验全机地面起吊位姿监测方法
2023-08-08
Patent
Elektronische Ressource
Chinesisch
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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