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Method for modifying load characteristic curve of aircraft arrestment device

A technology of load characteristics and curves, which is applied in the field of correction of the load characteristic curve of aircraft arresting devices, and can solve problems such as the lack of correction methods for the load characteristic curves of aircraft arresting devices

Active Publication Date: 2014-08-13
SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA
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Problems solved by technology

[0003] At present, there is no correction method for the load characteristic curve of the aircraft arresting device

Method used

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  • Method for modifying load characteristic curve of aircraft arrestment device
  • Method for modifying load characteristic curve of aircraft arrestment device
  • Method for modifying load characteristic curve of aircraft arrestment device

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Embodiment Construction

[0063] The present invention will be described in further detail below through specific embodiments and in conjunction with the accompanying drawings.

[0064] 1. Typical Arrested Landing Quality Legend

[0065] This standard gives the typical arresting load of 22000kg, 24000kg and 26000kg in arresting landing mass - arresting sliding distance dimensionless diagram, respectively as follows Figure 4 , Figure 5 and Figure 6 shown. For the curve in the figure, the description is as follows: when dimensioning, the position of abscissa 1 is 90m, and the position of ordinate 1 is 100000kg;

[0066] 2. Correction of the load characteristic curve of the arresting device

[0067] 1) Curve Correction for Atypical Arrested Landing Weights

[0068] a) For aircraft with a mass less than 22000kg, the calculation of the arresting load needs to be combined with Figure 4 Perform linear extrapolation.

[0069] b) For aircraft with a mass between 22000kg and 24000kg, the calculation of ...

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Abstract

The invention belongs to the field of aircraft design and relates to a method for modifying a load characteristic curve of an aircraft arrestment device. The method is characterized in that an arrestment load-arrestment sliding distance curve under a typical state of an aircraft is modified, so that an arrestment load-arrestment sliding distance curve under conditions of different arrestment landing weights, meshing speeds and engine thrusts can be obtained, and accurate load input data can be provided for designing the aircraft arrestment device. The method has the beneficial effects that the load of the aircraft arrestment device under non-typical arrestment conditions such as a non-typical arrestment landing weight, a non-typical meshing speed and an engine trust can be determined, the load characteristic curve of the aircraft arrestment device can be obtained without performing a non-typical arrestment working condition test, and the test expenses and the test period can be saved.

Description

technical field [0001] The invention belongs to the field of aircraft design and relates to a method for correcting the load characteristic curve of an aircraft arresting device. Background technique [0002] The arresting device load is an important basis for the structure and strength design of the aircraft arresting device. The typical arresting load-arresting distance curve under the typical arresting weight, specified engagement speed and arresting distance is generally obtained through actual flight measurement. However, it is obvious that when an actual aircraft performs an arresting landing, both the arresting weight and the engagement speed will deviate from the typical arresting load-arresting distance curve. In order to evaluate the ground arresting device in this case, it is necessary to obtain atypical arresting Arresting load-arresting distance curve under the condition of [0003] At present, there is no correction method for the load characteristic curve of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00G06F17/50
Inventor 王成波姚念奎卢学峰周栋
Owner SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA
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