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Anti-crash design method for helicopter fuel system

A fuel system and design method technology, applied in design optimization/simulation, calculation, special data processing applications, etc., can solve the problems of high test cost, long design cycle, complicated design changes, etc., to shorten the design cycle and reduce the workload , the effect of huge economic benefits

Inactive Publication Date: 2018-05-29
CHINA HELICOPTER RES & DEV INST
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Problems solved by technology

[0003] The research on the anti-crash aspect of the helicopter fuel system in the prior art is mainly based on the test, and the drop test method is mainly used, which has the disadvantages of long design cycle, high test cost, and complicated design changes.

Method used

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  • Anti-crash design method for helicopter fuel system

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Embodiment Construction

[0021] 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 an anti-crash design method for a helicopter fuel system. The anti-crash design method for the helicopter fuel system comprises the following steps of 1, building a fuel systemsimulation model, wherein the fuel system comprises a fuel tank cabin, a soft fuel tank, fuel or water, easily broken connecting pieces, an accessory plate and protective foam; 2, setting parametersof unit materials according to actual parameters of the materials; 3, performing boundary and contact definition; and 4, through comparison of a calculation result and a test result, correcting basicparameters of an anti-crash simulation analysis finite element model of the fuel system. According to the anti-crash design method for the helicopter fuel system, the workload of anti-crash testing ofthe helicopter fuel system can be greatly reduced; the design cycle is shortened; and huge economic benefits are generated.

Description

technical field [0001] The invention relates to the technical field of anti-crash design and analysis of a helicopter fuel system, in particular to a method for anti-crash design of a helicopter fuel system. Background technique [0002] In helicopter crashes, nearly all fires are caused by fuel leaks from the crash. In most survivable accidents, an anti-crash fuel system prevents a crash fire or delays it long enough to allow occupants to escape. Simulation analysis is very important in the anti-crash design of helicopter fuel system. [0003] The research on anti-crash of the helicopter fuel system in the prior art is mainly based on the test, and the drop test method is mainly used, which has the disadvantages of long design period, high test cost, and complicated design changes. [0004] Therefore, it is desirable to have a technical solution to overcome or at least alleviate at least one of the above-mentioned drawbacks of the prior art. Contents of the invention ...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/15G06F30/23
Inventor 邵元新袁李斌陈静庄伟
Owner CHINA HELICOPTER RES & DEV INST
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