Test device and method for aircraft pedals

A technology of test device and test method, which is applied in the direction of measuring device, force/torque/work measuring instrument, measuring the force applied to the control element, etc. problem, to achieve the effect of smooth and even pedal motion

Active Publication Date: 2021-05-07
COMAC +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to propose a test device and method for aircraft pedals in order to overcome the shortcomings of lack of controllability and accuracy in the pedal test method in the prior art, and it is difficult to meet the high test accuracy requirements

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  • Test device and method for aircraft pedals
  • Test device and method for aircraft pedals
  • Test device and method for aircraft pedals

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Embodiment approach

[0044] According to a preferred embodiment of the present invention, the test method also includes the following steps:

[0045] After collecting the displacement of the sliding screw pair measured by the displacement sensor, the angular displacement of the aircraft pedal is calculated according to the following formula (1), and the linear displacement of the aircraft pedal is obtained according to the following formula (2), wherein the aircraft pedal The angular displacement of is defined as the angular displacement of the pedal rocker arm 53 relative to its center of rotation 54, and the linear displacement of the aircraft pedal is defined as the linear displacement of the hinge 52 in the first direction,

[0046]

[0047] s=c sin(θ-θ 0 ) (2),

[0048] In above-mentioned formula (1), l=l 0 +Δl, in the above formula, l 0 To slide the screw pair along the first direction (for example, when the aircraft pedal is in the neutral position) figure 1 , figure 2 In the horiz...

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Abstract

The invention discloses a test device and method for aircraft pedals. The test device for aircraft pedals of the present invention comprises a base, on which a motor and a screw are arranged, the motor is used to drive the sliding screw pair of the screw to move along the first direction, and the sliding screw pair is fixedly connected to the connecting rod via a fastener. One end of the rod is used to lock the angle between the sliding screw pair and the connecting rod, and the other end of the connecting rod is connected to the pedal clamp, which is used to clamp the pedal rocker arm of the aircraft pedal and make it follow the sliding wire The movement of the rod pair rotates around its own rotation center, and the base is also provided with a displacement sensor for measuring the displacement of the sliding screw rod pair along the first direction. The invention can apply force to the pedals to be tested with high controllability and high precision, so that the pedals can move more smoothly and evenly, and can meet higher testing precision requirements of the pedals.

Description

technical field [0001] The invention relates to the technical field of aircraft pedals, in particular to a test device and method for aircraft pedals. Background technique [0002] In the cockpit, the pedals can be used to control the yaw of the rudder and the braking and turning actions during landing. The performance of the pedals is crucial to the performance of the aircraft and safe flight. And the power feeling of the pedal and the amplitude of the pedal movement also affect the driver's control and comfort. Therefore, measuring the displacement of the pedals (including angular displacement and linear displacement) and the force feeling of the pedals is an important task in aircraft testing. [0003] The traditional pedal test method is to test the force and displacement by pushing or stepping on the pedals. The defect of this method is that the power of the pedals is artificially provided, which can easily make the speed of the pedals uneven, which is easy to affect t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B21/02G01L5/22
CPCG01L5/225
Inventor 段曙凯吴熙
Owner COMAC
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