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Measuring method of wheel braking torque with landing gear

A measurement method and landing gear technology, applied in force/torque/work measuring instruments, measuring devices, instruments, etc., can solve the problems of wheel braking torque measurement of wheels that cannot be equipped with landing gear, and achieve great use value and accurate strength. and life evaluation, the effect of easy installation

Active Publication Date: 2017-02-22
XIAN AVIATION BRAKE TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to overcome the deficiency in the prior art that the wheel braking torque cannot be measured for the wheel with landing gear, the present invention proposes a method for measuring the braking torque of the wheel with landing gear

Method used

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  • Measuring method of wheel braking torque with landing gear
  • Measuring method of wheel braking torque with landing gear
  • Measuring method of wheel braking torque with landing gear

Examples

Experimental program
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Embodiment Construction

[0054] This embodiment is the measurement of the braking torque of a certain type of aircraft in a braking test after taxiing on the runway.

[0055] There are 4 strain gauges 5, which are the first strain gauge R 1 , The second strain gauge R 2 , The third strain gauge R 3 And the fourth strain gauge R 4 . The data acquisition system 6 is a conventional strain acquisition system. Among them, the four strain gauges are divided into two groups, the first strain gauge R 1 With the second strain gauge R 2 One set, the third strain gauge R 3 With the fourth strain gauge R 4 One set; two sets of strain gauges are symmetrically pasted on the surface of the axle between the hub and the landing gear pillar 4, and are on the horizontal plane where the axle axis is located. The included angle between the longitudinal center lines of the two strain gauges in each group is 90 degrees, and the included angle between the longitudinal center lines of the two strain gauges and the axis is 45 deg...

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Abstract

An undercarriage wheel brake kinetic moment measuring method measures a brake kinetic moment in a loading state or an undercarriage wheel in a braking test of a large inertia dynamic test bed, solves the problems that a dynamic braking moment of a brake device cannot be directly measured as a torque / force sensor cannot be mounted on an undercarriage and the dynamic test brake moment of the undercarriage is measured, meets kinetic moment measuring requirements of a brake test of undercarriages with different structural sizes and is used for measuring the brake moment of a plane brake device in the loading state. The undercarriage can serve as an onboard device of a plane and has a huge use value. The measuring method has the advantages that the measuring method is simple in structure, convenient to mount, fine in universality and safety, can be widely used for undercarriage brake tests of various military aircrafts and civil aircrafts and other wheel power tests of an automobile and the like, and has important social significance and application prospects, and time and labor are saved.

Description

Technical field [0001] The invention belongs to the aircraft brake test technology, and particularly relates to a method for measuring the brake torque in the aircraft wheel installation state and other brake power tests with landing gear. Background technique [0002] Braking torque, also known as braking torque, is the torque generated by the brake device to prevent the wheel from rolling when the wheel is braking, which is opposite to the combined torque. It is one of the key parameters of the brake wheel design. It is not only the basis for determining the structural parameters of the brake device, but also directly affects the structural strength of the landing gear, tires, and hubs. It is also used to calculate the aircraft's running performance, deceleration performance, running distance, and sliding Main parameters such as running time and energy absorption. In use, it can be divided into static braking torque and dynamic braking torque according to the motion state of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L5/28
Inventor 邓伟林
Owner XIAN AVIATION BRAKE TECH
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