Apparatus of measuring aircraft landing gear wheel shaft end position and measurement method thereof

Abstract

An apparatus of measuring an aircraft landing gear wheel shaft end position and a measurement method thereof are disclosed. In the measurement apparatus, two ends of a linear displacement sensor are provided with universal ball hinges respectively. A three-axial inclination angle sensor is pasted on an outer circumference surface of a linear displacement sensor sleeve end. After the linear displacement sensor is installed on a lower surface of a loading platform along with the landing gear, the three-axial inclination angle sensor is located at a position which is deviated from the lower surface of the loading platform. In the invention, a landing gear wheel shaft end position state is measured during a landing gear airplane wheel brake test so that the landing gear wheel shaft end position state can be accurately measured in real time and a real-time dynamic response curve of the landing gear wheel shaft end position is obtained. Through a measured data, landing gear intensity and a service life are assessed accurately. A trusted test basis is provided for researching the landing gear with good performance. And test data is provided for achieving good matching performance among an airplane wheel, a wheel shaft, a brake system and a landing gear strut.

Description

technical field [0001] The invention belongs to the aircraft brake test technology, in particular to a device and method for measuring the position of the axle end of the aircraft landing gear used in the brake dynamic test with the landing gear. Background technique [0002] The landing gear is one of the main parts of the aircraft, including the shock absorption system, the force-bearing pillar, the wheel, the brake device, the retractable mechanism and other systems, which can absorb and dissipate the kinetic energy generated by the vertical speed of the aircraft when it lands, ensuring The aircraft can freely and stably complete various actions on the ground, and its working performance and desirability directly affect the use and safety of the aircraft. [0003] The landing gear is the same as other structures of the aircraft. For example, under the premise of ensuring the strength, rigidity and expected safety life of the landing gear structure, the weight should be th...

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Problems solved by technology

[0008] The purpose of the present invention is to overcome the shortcomings of the prior art that cannot adapt to the wheel brake test of the aircraft with landing gear, or that the cost is high and the implementation is difficult, and provide a device and a measuring method for measuring the position of the axle end of the aircraft landing gear

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