Method for testing field ground load calibration of airplane wing and calibration device thereof

Abstract

The invention discloses a method for testing ground load calibration of an airplane wing and a special device for ground load calibration of the airplane wing. The method comprises the following steps: 1, calibrating a coordinate system, setting an intersection point of a horizontal line of an airframe structure of the airplane and a zero bit line as the original point of the coordinate system toensure that an X axis is coincided with the horizontal line of the airframe structure of the airplane and is positive afterwards, an Y axis is in a symmetric surface of the airplane and is positive upwards, and a Z axis points at the left wing of the airplane and forms a right-handed system with the X axis and the Y axis; 2, supporting a main undercarriage of the airplane on the ground, supportinga front undercarriage of the airplane on a platform, maintaining the wing in a horizontal state, and leading a fore flap, a tailing flap and a flap to be in the horizontal state; 3, applying restraint load to left and right horizontal stabilizer shafts of the airplane; and 4, selecting load points of the wing, applying calibration load to the selected load point of the wing, and acquiring the value of the calibration load. The method realizes field ground load calibration of the airplane wing.

Description

technical field [0001] The invention relates to an aircraft wing field ground load calibration technology, in particular to an aircraft wing ground load calibration test method and a device thereof. Background technique [0002] The aircraft wing is an important part of the aircraft. Its main function is to generate lift to support the aircraft to fly in the air. To ensure its safety and reliability is related to the condition and service life of the aircraft. According to the statistics of aircraft usage in our country, it is found that 80% of the accidents related to the strength of the aircraft structure are caused by structural fatigue. The serious accidents of aircraft crashes and fatalities in our country are mostly caused by structural fatigue. Therefore, it is very important to determine the load conditions of the key parts of the wing for structural fatigue analysis. Usually, it is necessary to attach strain sensors to dangerous parts of the aircraft structure, ob...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a method and device for calibrating the ground load of an aircraft wing and a special device for calibrating the ground load of the airfoil, which are used to solve the problem that the airfoil cannot be correctly simulated during the flight of the aircraft in the prior art. Real load transfer conditions, low accuracy of load testing and calibration, long testing cycle and low safety

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