Simulated birdshot for bird impact resistance tests for aircrafts

A technology of bird bombs and bird strikes, applied in ammunition, practice ammunition, ceramic molding machines, etc., can solve problems such as environmental pollution, difficulty in verifying test results, analysis method calculation model, high test cost, etc., and achieve low cost, simple production process, Easy to clean up the effect of the scene

Inactive Publication Date: 2012-06-27
CHINA AIRPLANT STRENGTH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The speed of bird impact can generally reach hundreds of kilometers per hour. After the impact, the bird bombs shatter and splash. The test site needs to be cleaned up immediately after the test. However, the remaining bird meat is easy to breed bacteria and pollute the environment, threatening the health of the test personnel.
At the same time, the test standard requires that the birdball be made into a positive cylinder with an aspect ratio approximately equal to 2. Due to individual differences in poultry, basically th

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0025] Step 1: Pour the gelatin powder into cold water, stir slightly, and evenly heat the mixture to 45°C; the mass ratio of the ingredients in this embodiment is 80:8:2:1.

[0026] Step 2: Put sodium carboxymethyl cellulose and aluminum diacetate into a mixture of gelatin and water for stirring, stir evenly and pour into a forming mold;

[0027] Step 3: Put the mold into the freezer to refrigerate, the refrigerating temperature is 5°C, and the refrigerating time is 8 hours.

[0028] The simulated bird bomb made by the above method has a density of 950kg / m 3 .

[0029] Since the main components of the simulated bird bombs are gelatin and water which are non-polluting to the environment, it is easy to clean up the site after the test, has no pollution to the environment, and will not have adverse effects on the health of the test personnel. The shape of the simulated bird bomb is guaranteed by a special mold, which can be made into a standard bird bomb that meets the require...

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Abstract

The invention relates to a simulated birdshot for bird impact resistance tests for aircrafts. The simulated birdshot is a regular cylinder structure with the length-diameter ratio equal to 2. The simulated birdshot for bird impact resistance tests for aircrafts consists of ingredients including water, gelatine, sodium carboxymethylcellulose and aluminum acetate basic, and the mass proportion of the ingredients is 80+/-2:8+/-1:2:1. As the main ingredients of the simulated birdshot are the gelatine and the water, the gelatine and the water do not pollute environments, sites can be cleaned conveniently after the tests, the environments are not polluted, and adverse effects to health of test staffs are avoided. The appearance of the simulated birdshot is guaranteed by a special mold, the standard birdshot which meets requirements of test standards can be manufactured, a manufacturing process is simple, and cost is low.

Description

technical field [0001] The invention relates to a simulated bird bomb applied to an aircraft anti-bird impact test. Background technique [0002] Bird strike is one of the main factors that threaten the safety of air transport. In order to ensure the flight safety of civil aircraft, the Aircraft Airworthiness Regulations stipulate that civil aircraft must be inspected before commercial operation, including the nose and windshield structure, wing leading edge, and tail leading edge. Anti-bird strike verification tests including structural components, and require specific parts to withstand bird strikes, and the aircraft can still safely return to the airport. At present, the method of bird impact test is to use the air cannon to launch bird bombs to hit the structural parts fixed on the test fixture. According to the standard, bird bombs are generally made of dead poultry. According to the requirements of the test conditions for the weight of bird bombs, corresponding The ch...

Claims

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Application Information

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IPC IPC(8): F42B8/00B28B1/14
Inventor 刘小川陈建新赵辉
Owner CHINA AIRPLANT STRENGTH RES INST
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