Device and method for measuring the position of the axle end of aircraft landing gear

A technology for aircraft landing gear and landing gear, which is applied to measurement devices, instruments, etc., can solve the problems of inability to adapt to the wheel brake test of landing gear aircraft, high cost, and difficulty in implementation.

Active Publication Date: 2018-06-01
XIAN AVIATION BRAKE TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

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  • Device and method for measuring the position of the axle end of aircraft landing gear
  • Device and method for measuring the position of the axle end of aircraft landing gear

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Embodiment Construction

[0026] The measuring device includes a fixed support 6 , a universal ball joint 7 , a linear displacement sensor 8 and a triaxial inclination sensor 9 .

[0027] The linear displacement sensor 8 is a rigid LVDT linear displacement sensor, and a universal ball joint 7 is respectively arranged at both ends of the linear displacement sensor, wherein the fixed end of the universal ball joint located at the end of the telescopic rod of the linear displacement sensor passes through The fixed support 6 is installed on the end face of the wheel shaft, and the fixed end of the universal ball joint located at the sleeve end of the linear displacement sensor is installed on the lower surface of the loading platform 5 together with the landing gear. The three-axis inclination sensor 9 is pasted on the outer circumferential surface of the sleeve end of the linear displacement sensor, and when the linear displacement sensor is installed on the lower surface of the loading platform 5 with the...

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B21/00
CPCG01B21/00
Inventor 邓伟林习鹤张炜肖继平马晓军
Owner XIAN AVIATION BRAKE TECH
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