Method and platform for measuring deflection of stay bar of aircraft landing gear

The invention discloses an aircraft landing gear stay bar deflection measurement method and a measurement platform thereof, and the method comprises the steps: enabling a stay bar to simulate a working position, and obtaining a plurality of measurement coordinates on a first rotating shaft, a second rotating shaft and a third rotating shaft, so as to facilitate the calculation of the relative positions of the axis of the first rotating shaft, the axis of the second rotating shaft and the axis of the third rotating shaft; finally, the deflection value of the supporting rod is obtained. Compared with the prior art of indirectly obtaining the position relation of each axis, the method of directly measuring the position information of the first rotating shaft, the second rotating shaft and the third rotating shaft to obtain the relative positions of the axis of the first rotating shaft, the axis of the second rotating shaft and the axis of the third rotating shaft is selected. The influence of assembly errors is