Load correction method applied to undercarriage loading

A landing gear and load technology, which is applied in the aviation field, can solve problems such as errors and large test loads, and achieve the effect of solving deviations and reducing load errors

Active Publication Date: 2015-11-25
XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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  • Abstract
  • Description
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Problems solved by technology

Such a problem occurred in the test of the landing gear connection area of ​​an aircraft. The deformation of the loading lever system caused the vertical tie rod to deviate from the vertical direction, so that the vertical tie rod load produced an unnecessary heading component, resulting in a large error in the test load.

Method used

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  • Load correction method applied to undercarriage loading

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Embodiment Construction

[0014] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below ...

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Abstract

The invention discloses a load correction method applied to undercarriage loading. The method comprises the steps of 101, installing a loading device on an undercarriage; 201, acquiring corresponding test data between the offset, in the heading direction of the undercarriage, at the position where the loading device is connected with the undercarriage and a load multiple times through testing; 301, fitting the test data obtained in the step 201 into a formula by means of the least square method; 401, obtaining the offset, in the heading direction of the undercarriage, at the position where the loading device is connected with the undercarriage according to a preset load by means of the formula obtained in the step 301; 501, adjusting the loading device so as to counteract the offset. In this way, load error generated by an undercarriage loading system is effectively reduced so that the test load error can meet the control requirement, and then the problem that offset exists in the prior art is solved.

Description

technical field [0001] The invention relates to the field of aviation technology, in particular to a load correction method in landing gear loading. Background technique [0002] In the landing gear and its related tests, the load of the landing gear is generally applied by a set of lever systems. Due to the high height of the landing gear of the aircraft and the large load, the buffer oil can be compressed, and the landing gear and its connection The structure inevitably deforms under load, and this deformation will cause the loading system to produce vertical or heading displacement. Such a problem occurred in the test of the landing gear connection area of ​​an aircraft. The deformation of the loading lever system caused the vertical tie rod to deviate from the vertical direction, so that the vertical tie rod load produced an unnecessary heading component, resulting in a large error in the test load. . [0003] Therefore, it is desirable to have a technical solution to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64F5/00B64F5/60
Inventor 张自鹏张引利薛应举尹凯军何静
Owner XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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