Airplane overturn testing device and airplane overturn testing method

A technology of test device and test method, which is applied in the direction of aircraft component testing, aircraft parts, ground devices, etc., to prevent the aircraft from sliding, prevent sideways swing, and ensure accuracy.

Active Publication Date: 2014-12-10
JIANGXI HONGDU AVIATION IND GRP
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If there is no experience showing that the structural design can protect the occupants when the aircraft is completely overturned, the conformity of the structure must be verified through the overturning test, which has not yet been carried out in China

Method used

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  • Airplane overturn testing device and airplane overturn testing method

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Embodiment

[0027] Example: see figure 1 , figure 2 .

[0028] figure 1 It shows the load condition of the aircraft after it is overturned. In the figure, G is the center of gravity of the aircraft, and P w - downward inertial load; P f -Friction force at the ground point of the cockpit; the horizontal reference line of the aircraft in the figure is used to mark the horizontal plane of the aircraft. During the test, the horizontal reference line should be used as a reference to calibrate other positions, such as the position of the stress measurement point and the position of the displacement measurement point. The direction indicated by the arrow in the figure is the taxiing direction after the aircraft is overturned.

[0029] figure 2 Shown in the aircraft overturning test device of the present invention, and the aircraft overturning test method on the basis of this device.

[0030] An aircraft overturning test device comprises a test platform 2 and a support 8 for supporting th...

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Abstract

The invention discloses an airplane overturn testing device, which comprises a testing platform and supports which are used for supporting the testing platform. An airplane hinging joint is arranged at the front end of the upper surface of the testing platform. The nose of an overturned airplane is hinged with the airplane hinging joint. Stand columns are arranged on the two sides of the testing platform. Sliding wheels which are in contact with the fuselage of the airplane are arranged on the stand columns. An inertial load loading mechanism and a friction loading mechanism are additionally arranged. The invention additionally discloses an a airplane overturn testing method, which comprises the following steps of: arranging the testing platform, installing the airplane hinging joint on the testing platform for hinging the nose of the airplane; overturning the airplane, placing the overturned airplane on the testing platform and hinging the nose of the airplane with the airplane hinging joint; arranging the stand columns on the two sides of the fuselage of the airplane on the testing platform, installing the sliding wheels on the stand columns and enabling the installed sliding wheels to be in contact with the fuselage of the airplane; and arranging the inertial load loading mechanism and the friction loading mechanism. The airplane overturn testing device and the airplane overturn testing method have the advantages that the attitude of the overturned airplane is really simulated the accuracy of extrusion load at points wherein the overturned airplane is in contact with the group is guaranteed.

Description

technical field [0001] The invention relates to the field of aircraft design, and in particular discloses an aircraft overturning test device and an aircraft overturning test method based on the aircraft overturning test device of the invention. Background technique [0002] According to the requirements of CCAR-23 of the General Administration of Civil Aviation of China, if it cannot be ensured that the aircraft will not overturn during the emergency landing, the structure must be designed to protect the occupants when the aircraft is completely overturned. If there is no experience showing that the structural design can protect the occupants when the aircraft is completely overturned, the conformity of the structure must be verified through the overturning test, which has not yet been carried out in China. [0003] figure 1 It shows the load condition of the aircraft after it is overturned. The arrow to the right in the figure indicates the sliding tendency of the aircraf...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64F5/00B64F5/60
Inventor 邹群飞陈水根朱亲强任锋亮李友和梅李霞杜娟李善勋
Owner JIANGXI HONGDU AVIATION IND GRP
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