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A system safety evaluation method based on bird impact

A technology of system safety and bird strike, which is applied in the field of aircraft safety design and aircraft safety design, and can solve the problems of lack of specifications and instructions

Active Publication Date: 2019-03-29
XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although attention has been paid to the design of aircraft bird strikes, there is still a lack of relevant specifications and instructions on the safety assessment methods and procedures of the bird strike failure analysis system

Method used

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  • A system safety evaluation method based on bird impact

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Embodiment Construction

[0023] The present invention will be further described below. see figure 1 .

[0024] After a bird strike incident on an aircraft, analyze possible system failures, conduct safety assessments, identify equipment that may cause catastrophe or danger, and minimize the impact of bird strikes on aircraft safety. The specific process is as follows:

[0025] Step 1) Determine the area affected by bird strikes: the windward part of the aircraft is prone to bird strikes, and the bird strike damage affected area is determined in combination with structural anti-bird strike analysis or test results;

[0026] Step 2) Determining the bird strike damage model: determine the area model where the structure will be damaged after the bird strike, so as to determine the harm of the bird strike to the system equipment;

[0027] Step 3) According to the bird strike damage model, combined with the independence requirements proposed by the system security, identify the affected equipment with ind...

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Abstract

The invention discloses a system safety evaluation method based on bird impact, which is characterized in that the method comprises the following steps of: determining a bird impact hazard area, establishing a bird impact damage model, identifying equipment independent damage, system modification or structure protection design, and result evaluation. The invention finds out the weak links of the airborne system and the equipment thereof in the bird collision resistance, points out the design changing direction, thereby adopting protective measures in the airborne system design to reduce the harm to the airplane caused by the bird collision as far as possible, so as to show that the design of the airborne system of the airplane can meet the requirements of the airworthiness clause.

Description

technical field [0001] The invention belongs to the field of aircraft safety design, relates to a bird strike-based system safety evaluation method, and is mainly used in the fields of aircraft safety design and the like. Background technique [0002] Bird strike is a sudden and frequent aircraft accident. Once a bird strike accident occurs on an aircraft, it will directly threaten the life safety of the aircrew and passengers, causing structural damage to the aircraft body or simultaneous failure of multiple on-board systems and equipment, and causing catastrophic accidents involving aircraft crashes and fatalities. [0003] In recent years, with the development of the aviation industry, bird strike accidents have shown an obvious trend of increasing year by year, and it has also attracted the attention of the field of civil aircraft. China's civil aviation regulations CCAR23, CCAR25 and CCAR29 have made relevant regulations on the design of aircraft against bird strikes. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/15G06F30/20
Inventor 王小辉张丽张冕黄海东车程
Owner XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA