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A landing gear aerodynamic load test device and its design method

A technology of aerodynamic load and test equipment, which is applied in the directions of ground equipment, transportation and packaging, and aircraft component testing, etc., can solve problems such as not being able to meet the test requirements, and achieve the effects of convenient implementation, novel structure, and cost saving

Active Publication Date: 2022-04-12
LANDING GEAR ADVANCED MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the conventional landing gear functional performance test cannot meet the test requirements

Method used

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  • A landing gear aerodynamic load test device and its design method
  • A landing gear aerodynamic load test device and its design method
  • A landing gear aerodynamic load test device and its design method

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Embodiment Construction

[0031] The present invention will be described in detail below with reference to the accompanying drawings and examples. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. For the convenience of description, if the words "up", "down", "left" and "right" appear in the following, it only means that the directions of up, down, left and right are consistent with the drawings themselves, and do not limit the structure.

[0032] Such as Figure 1~3 As shown, a landing gear aerodynamic load test device provided in this embodiment includes a mounting frame 1 , a loading device 2 , a loading wire rope 3 , an angle sensor 4 and a mounting support 5 .

[0033] The mounting frame 1 is used to fix the landing gear 10 . The main shaft of the undercarriage 10 is fixed to the upper end of the mounting frame 1 by bolts. The dummy wheel assembly 11 is provided on the mounting frame...

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Abstract

The invention provides a landing gear aerodynamic load test device and a design method thereof. The landing gear aerodynamic load test device includes a mounting frame and a loading device; the loading device is provided with an application point, and the mounting frame is provided with a loading point; in static state, the loading point is aligned with the center of the landing gear axle. The position of the point on the lateral and vertical projection planes corresponds; driven by the applied point, the loading point can be displaced laterally, heading, and vertically, and the displacement track of the loading point is consistent with the landing gear Displacement trajectory matching. Compared with the related technology, the aerodynamic load test device of the landing gear provided by the present invention truly simulates the retraction and retraction of the landing gear under the influence of the aerodynamic load; the structure is novel, the reliability is high, and repeated disassembly and assembly are convenient.

Description

technical field [0001] The invention relates to a landing gear aerodynamic load test device and a design method thereof. Background technique [0002] Landing gear is an accessory device used to support the aircraft and move on the ground when the lower part of the aircraft is used for takeoff and landing or ground taxiing. The landing gear includes a main shaft and a wheel arranged at one end of the main shaft. The main shaft connects the wheels to the aircraft and transfers impact loads during landing and taxiing to the aircraft. Therefore, the landing gear is the only component that supports the entire aircraft and is an integral part of the aircraft. [0003] In the design of landing gear, the landing gear retraction test is a common functional performance test, which is mainly used to verify whether the retractable functional performance of the product meets the design requirements, and can set a single point of failure to verify the reliability of the retractable sys...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64F5/60B64F5/00
CPCB64F5/60B64F5/00
Inventor 侯博之路红伟孙继勇王小锋汪赵宏王慧锋
Owner LANDING GEAR ADVANCED MFG
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