Method for recognizing efficiency of aircraft elevator

An identification method and elevator technology, applied in the testing of machines/structural components, power measurement, measuring devices, etc., can solve the problems of high cost, high risk, and low accuracy of results

Inactive Publication Date: 2016-04-20
CHENGDU AIRCRAFT INDUSTRY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the shortcomings of the existing elevator efficiency identification methods, such as low accuracy, high cost and high risk, the present invention provides a method for identifying aircraft elevator efficiency. Obtain the elevator efficiency of the aircraft, and analyze the mechanism of measurement error and calculation error through error analysis and data identification methods, so as to obtain a reasonable taxi test strategy to ensure the safety of taxi and the reliability of data

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  • Method for recognizing efficiency of aircraft elevator
  • Method for recognizing efficiency of aircraft elevator
  • Method for recognizing efficiency of aircraft elevator

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Embodiment 1

[0091] A method for identifying the efficiency of an aircraft elevator, characterized in that it comprises: a. ground taxiing test method, b. aerodynamic parameter measurement method and c. error analysis and data identification method, said ground taxiing test method comprising: and a2 aerodynamic parameter determination sliding test, the aerodynamic parameter determination method includes: b1 lift coefficient test, b2 pitching moment coefficient test and b3 elevator efficiency test, the error analysis and data identification method includes: c1 measurement error and c2 calculation error.

[0092] The a. ground sliding test method

[0093] a1. Unpowered sliding test

[0094] The non-powered taxiing test is carried out by a tractor. Through the non-powered taxiing test, some control capabilities of the aircraft's flight control (such as deviation correction), the working conditions of the landing gear and the braking system, and the working conditions of the various systems of...

Embodiment 2

[0159] A method for identifying the efficiency of an aircraft elevator, characterized in that it comprises: a. ground taxiing test method, b. aerodynamic parameter measurement method and c. error analysis and data identification method, said ground taxiing test method comprising: and a2 aerodynamic parameter determination sliding test, the aerodynamic parameter determination method includes: b1 lift coefficient test, b2 pitching moment coefficient test and b3 elevator efficiency test, the error analysis and data identification method includes: c1 measurement error and c2 calculation error.

[0160] The a. ground sliding test method

[0161] a1. Unpowered sliding test

[0162] The non-powered taxiing test is carried out by a tractor. Through the non-powered taxiing test, some control capabilities of the aircraft's flight control (such as deviation correction), the working conditions of the landing gear and the braking system, and the working conditions of the various systems of...

Embodiment 3

[0227] A method for identifying the efficiency of an aircraft elevator, characterized in that it comprises: a. ground taxiing test method, b. aerodynamic parameter measurement method and c. error analysis and data identification method, said ground taxiing test method comprising: and a2 aerodynamic parameter determination sliding test, the aerodynamic parameter determination method includes: b1 lift coefficient test, b2 pitching moment coefficient test and b3 elevator efficiency test, the error analysis and data identification method includes: c1 measurement error and c2 calculation error.

[0228] The a. ground sliding test method

[0229] a1. Unpowered sliding test

[0230] The non-powered taxiing test is carried out by a tractor. Through the non-powered taxiing test, some control capabilities of the aircraft's flight control (such as deviation correction), the working conditions of the landing gear and the braking system, and the working conditions of the various systems of...

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Abstract

The invention relates to the field of aeronautical manufacture, and relates to the field of testing in the field of aeronautical manufacture, especially a method for recognizing the efficiency of an aircraft elevator. The method is characterized in that the method comprises the methods: a, a ground sliding testing method; b, a pneumatic parameter measurement method; c, an error analysis and data recognition method. The ground sliding testing method comprises the steps: a1, no-power sliding testing; a2, pneumatic parameter measurement sliding testing. The pneumatic parameter measurement method comprises the steps: b1, lift coefficient testing; b2, pitching moment coefficient testing; b3, elevator efficiency testing. The error analysis and data recognition method comprises the steps: c1, error measurement; c2, error calculation. The method can obtain the efficiency of the aircraft elevator, is simple, is accurate in data, is safe and reliable, is low in cost, analyzes the result data through employing a testing error analysis method, solves a problem of the verification of key pneumatic parameters of an unmanned plane before flying, and guarantees the safety of the first flight of the unmanned plane.

Description

technical field [0001] The invention relates to the field of aviation manufacturing and to the field of testing in the field of aviation manufacturing, in particular to a method for identifying the efficiency of an aircraft elevator. Background technique [0002] At present, the known elevator efficiency identification method is obtained by conducting wind tunnel tests and flight tests, and correcting the test data to a certain extent. The wind tunnel test is to indirectly obtain the aerodynamic characteristics of the real aircraft from the aerodynamic characteristics of the model, including the efficiency of the elevator, which requires similarity, interference correction and other links. Therefore, it is still difficult to obtain the aerodynamic parameters of the real aircraft. There are relatively mature methods for hole wall interference correction and Reynolds number correction for hole test data, but the accuracy of the correction results still needs to be further impr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L3/26G01M9/00
CPCG01L3/26G01M9/00
Inventor 李锐李涛吕凌英
Owner CHENGDU AIRCRAFT INDUSTRY GROUP
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