Leading edge of anti-bird strike aircraft empennage with single inclined plate

Abstract

The invention provides a bird impact resistance aircraft empennage front edge with a single oblique plate. The bird impact resistance aircraft empennage front edge comprises the single oblique plate, empennage front edge skin, a plurality of ribs, a front beam web and a front beam edge strip. The multiple ribs are fixed to the surface of one side of the front edge of the front beam wed in the extending direction. The distance between every two adjacent ribs is 200-300 mm. The single oblique plate is fixed to the folded edges of the upper oblique edges of all the ribs, and the surface of the single oblique plate and the surface of the front beam web form an included angle of 50-60 degrees. The empennage front edge skin covers and is fixed to the surfaces of the single oblique plate and the front beam edge strip. According to the bird impact resistance aircraft empennage front edge with the single oblique plate, the characteristics of the problem of bird impact are sufficiently considered, namely hydrodynamic behavior is shown up in the impact process of bird bodies; through a single oblique plate supporting structural piece, partial energy is absorbed, the movement tracks of the bird bodies are changed, the separated partial bird bodies carry large energy and fly away from the empennage front edge, and energy absorbed by an empennage is reduced, so that energy of bird body impact is reasonably released, and safety of an empennage front edge internal structure is ensured; and the characteristics of being easy to manufacture, low in cost and obvious in weight reducing are achieved.

Description

technical field [0001] The invention relates to the field of aircraft structure design, in particular to a support structure capable of improving the anti-bird impact performance of the empennage. Background technique [0002] A bird strike accident refers to an accident in which an aircraft such as an airplane flying in the air collides with a flying bird. With the rapid development of the civil aviation industry, civil aircraft bird strikes have become one of the most serious safety threats to civil aviation. According to relevant reports of United Airlines, from 1990 to 2008, American civil aviation reported 89,727 collisions between animals and civil aviation aircraft, 97.4% of which were caused by birds. Relevant data show that the windward side of the aircraft, including the windshield, radome, engine, wing leading edge and tail leading edge, is the most vulnerable to bird strikes. There are often oil circuit systems or control lines inside the leading edge structure...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the shortcomings of heavy structural weight and complex processing and maintenance in the prior art, the present invention proposes a bird strike-resistant aircraft tail leading edge with a single inclined plate

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