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Empennage load applying device used for plane structure strength tests

A strength test and aircraft structure technology, which is applied in the direction of aircraft component testing, aircraft parts, ground installations, etc., can solve the problems of large replacement of test loading equipment, long design cycle of empennage structure, and difficulty in on-site installation, so as to save research and development funds , save installation space and time, and speed up the test progress

Active Publication Date: 2014-04-16
CHINA AIRPLANT STRENGTH RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the design cycle of the empennage structure is long, the processing cost is high, the on-site installation is difficult, and the test loading equipment has a large amount of replacement

Method used

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  • Empennage load applying device used for plane structure strength tests
  • Empennage load applying device used for plane structure strength tests
  • Empennage load applying device used for plane structure strength tests

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Embodiment Construction

[0017] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0018] Please also see figure 1 , figure 2 with image 3 , the present invention is used for the empennage load applying device of aircraft structural strength test and comprises empennage dummy platform, connecting lug, loading beam, wherein, described empennage dummy platform surface is provided with connection hole, and the bottom is connected with fuselage empennage joint through single ear Hinged, the connecting lugs are arranged on the empennage dummy platform, and the loading beam is arranged on the empennage dummy platform through the connecting lugs.

[0019] The empennage dummy platform is connected with the fuselage empennage joint by bolts, simulating the real fuselage empennage load connection form. At the same time, room is left for the deformation of the fuselage during the load application process.

[0020] The loading beam is connected t...

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Abstract

The invention provides an empennage load applying device which can effectively simulate the empennage stress condition under the state of the maneuvering flight of a plane in plane structure strength tests. The empennage load applying device comprises an empennage fake piece platform, connection lug pieces and loading cross beams, wherein different test loads are applied on a tested piece in the mode of changing the mode of the loading cross beams and the connection lug pieces perpendicular to the surface of the empennage fake piece platform. Reinforced bearing rib plates are arranged at the bottoms of the connection lug pieces at the large load area of the surface of the empennage fake piece platform so as to change the force transmission mode under the large loads, and reliability is increased. The empennage load applying device can truly simulate the transmission of the loads of empennages, meet the requirement of application of the loads of the empennages under different working conditions, and solve the problem that under the action of the large loads of the empennages, the empennage load applying device deforms along with a plane body; the empennage load applying device is convenient to install, saves installation space, shortens installation time, speeds up the test schedule, and can largely save funding of model development.

Description

technical field [0001] The invention belongs to the empennage loading technology for aircraft structure strength test, in particular to an empennage load applying device for aircraft structure strength test. Background technique [0002] In the full-scale aircraft structural strength test, in order to verify the structural strength of the connection between the empennage and the fuselage, it is necessary to simulate the stress on the empennage under different maneuvering flight states of the aircraft. The method of directly applying loads on the empennage structure is usually adopted, for which it is necessary to design, process and install the empennage structure. However, the design period of the empennage structure is long, the processing cost is high, the on-site installation is difficult, and the test loading equipment requires a lot of replacement. Contents of the invention [0003] The object of the present invention is to provide an empennage load applying device ...

Claims

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Application Information

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IPC IPC(8): B64F5/00B64F5/60
Inventor 张辛瑞杜峰王巍旷海波柴军李小军
Owner CHINA AIRPLANT STRENGTH RES INST
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